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Forum |
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Moderator(s) |
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 Motorcycle Safety
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 How To ...
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Buying a used bike - is this a good deal?
Here is a forum in which you can ask for and discuss used bike purchase questions like: Is the price reasonable? What else should I ask for? Can the seller REALLY have just installed a NEW stator on this 28 year old bike I'm thinking of buying?
What this forum is NOT for is listing YOUR bike for sale. |
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28 |
08/09/2010
1:46 PM
by: aidanspa  |
Indiana Randy |
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Add-ons / Customization
Want to make your bike a little different from the next guy's? You might find in this forum how our other members tackled the nitty gritty of making those changes. |
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508 |
08/08/2010
11:09 PM
by: The Meromorph |
Axiom2000 |
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Improve your skills
Yep, parking lot practice is fundamental. But some of you have found other ways and may be willing to share here.
NOTE: The first time somebody posts a HOW TO DO A WHEELIE OR STOPPIE post this forum goes away. |
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750 |
08/13/2010
4:13 AM
by: Robus |
dhalen32 |
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Preventative Maintenance
Some kinds of maintenance (most, actually) should be done by trained professionals. But there are lots of things you can do for yourself. Here you can share the how to's with our other members. |
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241 |
07/29/2010
7:49 AM
by: TonicBIA |
Night Train |
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| Off Theme
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The Get Your Motor Running Chat Forum
This is an area for non-safety related posts that are neither political or humorous in content. Robust discussion, digression and expression is encouraged. Come on in as the water is fine.
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3732 |
08/15/2010
9:18 AM
by: Daddio |
BadaBing, Night Train |
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New Member's Corner
Members only
Our newest members have a place to hang until they get comfortable with the board and the old salts who frequent it. Here you may introduce yourself, tell us a bit about yourself and your interest in motorcycling, and ask questions about how to get around (and along) in this large site. |
508 |
2909 |
09/01/2010
12:47 AM
by: ruger |
BadaBing, Gs82Seca650 |
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Birthday Wishes - (Mature Themed)
Members only
A Place to Acknowledge and Celebrate that Special Day in a Member's Life. Open at your Own Risque. |
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532 |
09/01/2010
9:13 PM
by: The Meromorph |
Axiom2000, BadaBing |
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Humor ... the lighter side
This is the place to share a bit of humor.
Good taste and courtesy, please. |
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2184 |
09/01/2010
4:41 PM
by: gymnast |
Cash Anthony |
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Puzzles and Games
Here we make room and time for diversions of the mind. |
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278 |
03/29/2010
12:03 AM
by: lostinspace |
James R. Davis |
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Benefit and Rally Announcements
You may post announcements of benefit and other events here. Stale posts will be removed for you. |
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05/22/2010
11:02 PM
by: bzippi |
James R. Davis |
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Acknowledgements
Let's hear about your "attaboys," wherever they come from. |
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02/15/2010
6:03 AM
by: Axiom2000 |
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| Odds and Ends
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Subscriptions
How to remain current on message content here without having to connect to the forum. A real time saver for all of us. |
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02/05/2004
2:20 AM
by: James R. Davis |
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Testing place
Here you can try out various board functions without being concerned that you might adulterate other areas of the board. I will clean this forum out from time to time so you should NOT expect your messages to last long here. |
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06/24/2010
9:51 PM
by: hotthumzz |
BadaBing, Cash Anthony, gdickelman, Gs82Seca650, Indiana Randy, James R. Davis, John Henry, kiddal |
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Glossary
A list of specialized words, phrases, and abbreviations found within the motorcycling community along with their definitions. |
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152 |
08/30/2010
7:31 AM
by: James R. Davis |
gdickelman |
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Board Enhancements or Problems
This forum will be used to discuss enhancements and problems that need attention. |
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425 |
* Today *
10:35 AM
by: Cash Anthony |
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How to use the forum
Here you will find discussions on how to use this forum with suggestions on getting started and best practices. |
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93 |
08/05/2010
9:33 AM
by: James R. Davis |
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| Questions & Answers
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Ask Our Administrators
Here members may ask questions of our Administrators and only our Administrators are allowed to respond. Our Administrators are personally responsible for the integrity of the site, its functionality, and the overall behavior of its staff and members. |
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08/20/2010
12:26 PM
by: James R. Davis |
James R. Davis |
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Ask Our Moderators
Here members may ask questions of our entire set of Moderators and only our Moderators are allowed to respond. Our Moderators have individual responsibility to manage one or more of our forums. QUESTIONS HERE SHOULD DEAL WITH MODERATOR RESPONSIBILITIES, NOT MAINTENANCE ISSUES, FOR EXAMPLE. |
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07/19/2009
10:10 PM
by: Night Train |
Night Train |
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Close Ups!
"Film-making from the ground up"
A discussion forum on screenwriting and film production |
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From Cash's Closet
This is Cash's eStore from which you can purchase Hand-crafted jewelry & other fine gifts. |
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Motorcycle Tips & Techniques - Original gateway
The original gateway site. |
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| 001 | Highside Dynamics | What happens and how to prevent it |
| 002 | Maiden Voyage | Getting it home from the dealership |
| 003 | What They Didn't Teach During The MSF Class | And a couple of things they shouldn't have |
| 004 | Pre-ride Briefing For Your New Passenger | S/he is the BOSS, but you set the rules |
| 005 | Shock Absorbers Aren't | A detailed Discussion of what they really do |
| 006 | Teaching A Newbie To Lean | Actually, helpful hints for all |
| 007 | Dumping A Bike Is No Sin | But ending up under it is |
| 008 | Excessive Tire Wear | A list of causes |
| 009 | Tire Pressure | More temperature sensitive than you might think |
| 010 | Tire Plugs | Apparently little known facts that are important |
| 011 | One Rule That Will Keep You Alive | On City Streets |
| 012 | Motorcycle Officers Are Not The Best Examples | They have different realities |
| 013 | The Buddy System | When your stator fails you can still ride it home |
| 014 | CB Help Channel | Certainly not 9, probably not 1 |
| 015 | Planning That Poker Run | Suggestions from one who's been there |
| 016 | Riding Drag Is Anything But | For your most skilled/most experienced/best equipped |
| 017 | Closing The Door | Example of good lead/drag bike coordination |
| 018 | Sunblock Can Kill You | Honest! Trust me! |
| 019 | Cooling Down In Very Hot Weather | Evaporation is everything |
| 020 | Cold Weather Starting | Because you have a wet clutch you need to know this |
| 021 | Protecting Those Numb Fingers | A surprising find in your first-aid kit |
| 022 | Leathers Really Are Worth The Price | 20+ times more effective than your jeans |
| 023 | Crash Bars | Believe it or not, they may be MORE dangerous than helpful |
| 024 | Peer Pressure Is Easy - You Aren't | We don't argue with ourselves enough |
| 025 | Controlling Your Lane | Two wheels are enough to own a lane |
| 026 | Coffee - If You Need It, STOP | Drugs are no substitute for rest when you need it |
| 027 | Maintenance - Long Before Your Tour | Even the best 'wrench' makes mistakes |
| 028 | Helmets | Lethal or life saving? - A 'cause' or 'extremism'? |
| 029 | Braking Method | Determined by your speed |
| 030 | Taper Braking | Why 75%/25% is incorrect |
| 031 | You Only Hit That Car ... | If You Don't QUITE Stop In Time |
| 032 | Stopping Distance And Time | The math is simple |
| 033 | Riding With 'Colors' On The Street | Nonsense! |
| 034 | Precautions While Traveling ... | In An Armed Land |
| 035 | Hydroplaning Issues | What is it? What to do about it? Are they making new tires less safe? |
| 036 | Tips For Little Riders Of Big Bikes | The balls of your feet will tell |
| 037 | Higher-Octane Gasoline ... | Is Cheaper Than A Top-End Job |
| 038 | Doing 1,000 Miles In 24 Hours | A self-correcting problem? |
| 039 | Handling Curves | A better line |
| 040 | Parking | Skills and considerations |
| 041 | Do You Really Know ... | What's Dangerous About Riding In Fog? (Who'da thunk?) |
| 042 | Synthetic Oils | Almost always better than petroleum based |
| 043 | Using Teflon ® Additives | Not very smart |
| 044 | Trailer Hitch Fundamentals | Connect those chains properly |
| 045 | What If You Drag A Peg? | If you react instinctively you probably won't recover |
| 046 | Overnight Parking | Side-stand or center-stand? Cover it or not? |
| 047 | Electrical Systems | Common sense advice |
| 048 | Counter-steering | Not the least bit as simple as it feels |
| 049 | First Things First | A life DOES depend on it |
| 050 | To Ride Or Not To Ride? | That crisis of confidence moment |
| 051 | Three-Wheeled Vehicles | A few sobering realities |
| 052 | Side-stands | What could possibly be said about these? |
| 053 | Some People Should Not Be Riding Motorcycles | A curmudgeon's point of view |
| 054 | Providing Motorcycle Support Services | Liabilities, liabilities, liabilities |
| 055 | How To Handle A Fall | Assuming it's inevitable |
| 056 | Most Fatal Accidents Are NOT ... | "I Didn't See Him" problems despite what you have heard |
| 057 | Group Riding - Roles and Form | Our way |
| 058 | How To Ride Over That Thing In The Road | And survive the encounter |
| 059 | 18-Wheelers | Often make 'good riding buddies' |
| 060 | 'Under-steering' | Not the same as 'slow-steering' |
| 061 | Gassing Up? | Get OFF! |
| 062 | Group Riding - Size matters | Rubber Band Effect |
| 063 | Accident Management | Help your fellow riders by thinking ahead, being prepared |
| 064 | Brakes | Their Real Job is NOT to Stop - it is to SLOW the bike |
| 065 | Decreasing Radius Turns | May not have a decreasing radius |
| 066 | Steering | Your REAR wheel does it more often than not |
| 067 | Delta-V | Affects all motorcycles, not just 'crotch rockets' |
| 068 | Doggone It | How to handle charging animals |
| 069 | Target Fixation | Rather than let it lead you into trouble, use it |
| 070 | Elbows | Your biological shock absorbers |
| 071 | Lower Back | A couple of ways to protect it |
| 072 | Joining A Group | Never while it is moving |
| 073 | Batteries | More than you ever wanted to know |
| 074 | Weight Transfer | What it is, why does it happen, and why should you care? |
| 075 | Picking Up A Big Bike | By yourself |
| 076 | Slip Angle | Beyond Counter-steering |
| 077 | 128 Ways To Dump Your Bike | Confessions from those who have done it |
| 078 | The Prime Directive | Never hit the bike in front of you |
| 079 | Key Rings | Keep them short! |
| 080 | Swing Arms | Your anti-squat linkage |
| 081 | Brake Lever | Check it before you need it |
| 082 | Integrated Braking Systems | A marginal benefit that can save your life |
| 083 | Anti-lock Braking Systems (ABS) | Can, but are NOT designed to help you stop faster! |
| 084 | There Is More To Traction Than Friction | Stick and Grip |
| 085 | 60,000 Mile Motorcycle Tires | Would you buy them? |
| 086 | First Aid Kits | Does yours need a check-up? |
| 087 | Dry Rot | How to avoid it |
| 088 | '2-Second Rule' | Determined by road conditions |
| 089 | Hydroplaning Avoidance | Tire air pressure |
| 090 | Attention Limits | Your radio may be one distration too many |
| 091 | Locked Brakes | Sometimes (rarely) this is the fastest way to stop |
| 092 | The Greatest Oxymoron Of All | "I laid it down to avoid a crash" |
| 093 | In Case It Isn't Obvious | Dumping a bike to 'avoid an accident' MAXIMIZES PAIN |
| 094 | Reading Gear Ratios | Determining speed potential |
| 095 | All Roads Are Not Alike | Tourers take note |
| 096 | Windscreens | Bigger may not be better at all |
| 097 | After The Accident | Just because they're standing doesn't mean they aren't hurt |
| 098 | Electrical Storms | Riding out from under them could be a big mistake |
| 099 | Group Riding - Still YOUR Ride | It is not playing 'follow the leader' |
| 100 | Sliding Rear Tire - Brake Locked | Highside likely |
| 101 | Sliding Rear Tire - Brake Not Locked | Highside NOT likely |
| 102 | Loading That Trailer | Height of your CG is just as important as load distribution |
| 103 | The Shadow Knows | What evil lurls in the ... |
| 104 | Jump Starting Your Motorcycle | You can't kill a dead battery |
| 105 | A Bomb In Your Luggage | The odds are higher than you think |
| 106 | Center Of Gravity | How to calculate where it is |
| 107 | A Motorcycling Crisis | How to handle it |
| 108 | Wheel Traps | Well, what would you call them? |
| 109 | Road Construction | The pavement ends |
| 110 | Practice, Practice, Practice | 'Skill' is often no more than CONFIDENCE |
| 111 | Drowsy Drivers | Are less risky on city streets than on country roads |
| 112 | New Tires | NEED to GROW befroe you stress them |
| 113 | Learning To Ride | Squeezing both levers gets you out of trouble |
| 114 | Right And Left Turns | Different risks, different realities |
| 115 | Covering Those Control Levers | A function of speed, not style |
| 116 | Motorcycle Goes Where You're Looking | Magic? Undiscovered law of physics? Does it really work? |
| 117 | Before You Dismount | Six things to do |
| 118 | Panic Situations | Talking to yourself can keep you alive |
| 119 | Road (Street) Racing | Testing too many limits |
| 120 | Headaches And Other Pain | Getting rid of them can prove fatal! |
| 121 | Tire Additives | Miracle products or trouble waiting to happen? |
| 122 | Spokes May Look Good But ... | (Tubeless vs. Tube-type tires) |
| 123 | The Odd Duck In The Group ... | Is Still Part Of The Family |
| 124 | Fewer Daylight Hours | Don't go down with the sun |
| 125 | Heavier Bike vs. Stopping Distance | You should know this before driving down the mountain |
| 126 | Highway Boards (Pegs) | Should be standard equipment |
| 127 | Gas Tank Locks | Subtle safety feature |
| 128 | Braking In A Curve | (Of course you can) |
| 129 | Dress For The Fall, Not The Ride | (Comfort is just as important) |
| 130 | Demo Rides | Can you admit your limits? |
| 131 | Your Bike Is Down | Stay with it! |
| 132 | Support Your Wrist | To protect your thumb (and clutch) |
| 133 | Becoming An MSF Instructor/RiderCoach | Is NOT a status thing |
| 134 | Yellow Is Red Or Green | (I'd rather be red than dead) |
| 135 | Passing Without Lane Change | 10 MPH can kill you |
| 136 | Failing The MSF Class | Could save your life |
| 137 | Cigarette Lighter | As accessory that makes sense for all |
| 138 | Add $2 When You Change A Tire | And do it right |
| 139 | An Ugly Fact You May Have To Deal With | Eyes pop out |
| 140 | Crosswinds | How to deal with them |
| 141 | Parents And Significant Others | The great intimidators |
| 142 | Standing On The Pegs | Does NOT lower the Center of Gravity of the bike |
| 143 | Truck Related Tips For Highway Riding | Overtaking and Trucker-Tailgating |
| 144 | Selecting That Helmet | Fullface fit and usage |
| 145 | Collaborative Group Riding | Ride your own ride AND respect the others |
| 146 | Where Do Those Toes Belong? | Above the levers |
| 147 | Surface Street Strategy | Ticket avpidance |
| 148 | Stuck Signal Lights | Sensible approaches |
| 149 | Gasoline Can Be Trouble | Depending on when you buy it |
| 150 | Hearing Loss | Your helmet is inadequate defense |
| 151 | Speed | Does NOT provide stability |
| 152 | Reality Check | Let your helmet save your 'face' |
| 153 | Running Late | Take the car |
| 154 | Taking That Jacket Off | Unless the odds are worse |
| 155 | Off-road Experience | Good or bad? |
| 156 | Animal Hazards | Swerve or panic stop? |
| 157 | Groin Injuries | By design? |
| 158 | Form vs Function | Going through the motions |
| 159 | 'Caution-Warning-Danger' Signal | Lead bike alert - follower reaction |
| 160 | Your First Passenger | Neither your lady nor your child! |
| 161 | Groups Of Two | Lead in the left or right track? |
| 162 | Intersection Escape Routes | Accelerate or Decelerate - NOT Swerve |
| 163 | Rake Angle And Steering | Trail Causes Self-corection |
| 164 | Speed Bumps And RR Crossings | Why they can dump a bike |
| 165 | Passengers Are NOT Helpless | Should something happen to the rider |
| 166 | Dragging Pegs | Are a safety feature |
| 167 | The Faster You Go ... | The Less You Weigh! |
| 168 | Must Practice Be Stressful? | Only if you are trying to get better |
| 169 | Lateral Acceleration | Amplifies a 'flick' into a 'jolt' or highside |
| 170 | Beating The Odds | Requires that you behave ABNORMALLY |
| 171 | Helmet Laws | Evaluation of their repeal in LA and KY |
| 172 | Control In A Turn | Is it balance or trust when leaned over? |
| 173 | Slow Speed Or Shortest Radius Turns | A bit of geometry shows you how and why |
| 174 | Braking Is NOT A Zero-sum Game | Weight transfer always occurs |
| 175 | Master Chain Link | Retaining clip |
| 176 | Leadership | A function of behavior |
| 177 | Squeezing Both Levers | Is often enough to save it |
| 178 | Finding Neutral Is A Startup Activity | Leave it in gear when the ride is over |
| 179 | Accelerating In A Curve? | Well ... |
| 180 | Weight And Traction | Management |
| 181 | Preemptive Learning | Learning before you need to is the key to behaving properly in a crisis |
| 182 | Fear Can Kill You | Turn it into RESPECT |
| 183 | Why Counter-steering Begins At ... | About 6 MPH |
| 184 | Group Ride Lane Changes | Orchestrate for greater safety |
| 185 | Bungee Cords And Stretch Nets | Are DANGEROUS! |
| 186 | The Third Gyroscope | Adds stability |
| 187 | Trail | The righting effect |
| 188 | Motorcycle Dynamics | Like physics, it's a balancing act |
| 189 | Counter-steering Is Only Half ... | Of The Story |
| 190 | Tank-slappers | Harmonics at work |
| 191 | REACTING! | Will save your life |
| 192 | Rear Tire 'Chirp' | When hard braking or downshifting |
| 193 | CPR | Must you do it? |
| 194 | Parking Lot Practice | Using target fixation |
| 195 | Centrifugal Force | Causes counter-steering, not gyroscopics |
| 196 | Counter-steering | An exercise in feedback management |
| 197 | Adding A Passenger | After 6 months of experience you are still NOT ready |
| 198 | Listen To That Inner Voice | Some call it 'intuition' |
| 199 | Cornering In The Rain | Traction and hydroplaning |
| 200 | Panic Swerves | A very poor 'Choice' |
| 201 | Filing A 'Flight Plan' | Very savvy self-defense |
| 202 | Intersection Turns | ONE LANE AT A TIME! |
| 203 | Leaning And Turning Are NOT Equivalent | Push right - GO Right |
| 204 | Riding In Wet Weather | Some lessons learned |
| 205 | Paying Attention Is NOT Being Alert/Aware | It is deadly, at the wrong time |
| 206 | Riding Your Own Ride | (Playing the odds) |
| 207 | Weight and Mass | They are NOT the same thing! |
| 208 | Skill Development | Make it fun |
| 209 | If YouCan Do A Stoppie ... | You CANNOT stop as quickly as others |
| 210 | Highway Group Riding 'Rules' | Never trump safety |
| 211 | Keeping Your Rear Wheel On The Ground | Is hard to do |
| 212 | Rider Education DEATHS On The Rise | Two easy 'fixes' |
| 213 | Emergency Braking Practice Speed | 30 MPH is as realistic as is 60 MPH |
| 214 | How To Save It If You Do A Stoppie | EASE OFF YOUR BRAKE! |
| 215 | CB Or Helmet-To-Helmet Intercom? | Safety perspective |
| 216 | Downshifting During Emergency Braking | MSF teaches an unsafe practice |
| 217 | Your Motorcycle CANNOT Fall Down | (At any speed greater than 10 MPH, given traction) |
| 218 | All Riders Are Retreads | If they have ridden a motorcycle at least twice |
| 219 | Traction Pie | Dumbness personified |
| 220 | Cruise Control | Never if the road is wet |
| 221 | Performance Is All About TORQUE ... | Not HP |
| 222 | Moving From Scooters To Motorcycles | Gaining a new safety feature |
| 223 | Chains Are Not Trouble Free | Efficient but NOT trouble free |
| 224 | Rider Education ala MSF | Is NOT about safety! |
| 225 | Newbie Attending Rider Training | Preparation and other considerations |
| 226 | "I Laid It Down" Is A Crock | More charitably, it is an excuse |
| 227 | Guns Aren't Dangerous | You are |
| 228 | Visual Conflict Of Interest | Especially when accelerating |
| 229 | Conspicuity | Don't give them the excuse |
| 230 | Learning To 'Threshold Brake' | Requires great care |
| 231 | Advisory 'Speed Limit' Signs | What they are, what they mean |
| 232 | Starting from a dead stop on a hill | It's not which brake to use, it's managing your friction zone |
| 233 | Slow-speed Counter-steering? | Absolutely NOT! |
| 234 | Wide Open Throttle Prevention | Reduce training deaths! |
| 235 | Fastest Possible Right Turn | On Public Streets |
| 236 | Gods or Demons? | Which voices should you pay attention to? |
| 237 | Witnesses are Golden | Especially if they're reliable |
| 238 | Mental Models | The "Close To Home" one needs to be built |
| 239 | Just Do It! | ALL riders have those moments of doubt |
| 240 | Control is an Optical Illusion ... | Without Experience |
| 241 | Friction Zone | You must MASTER this control! |
| 242 | Controlling your Rear Brake | In an Emergency |
| 243 | Lock-step Synchrony is Bad Form | (Be a traffic shock absorber) |
| 244 | Lower Gear or Brakes? | (On a Downhill or Turn) |
| 245 | You got your endorsement. | Now what? |
| 246 | You should *NOT* ride at your skill level | (Always maintain an 'escape path') |
| 247 | Path Travelled | (Not at all obvious) |
| 248 | Why Counter-steering | is so hard to understand |
| 249 | Parking Lot Practice to MASTER | your clutch and front-brake lever controls |
| 250 | Not all 'beards' are hairy | ("Not-For-Profit' does NOT, necessarily, mean 'Charitable') |
| 251 | Informed Consent | Signing a Liability Waiver should mean something more than giving away your rights |
| 252 | Your Neck | Racing Gear Hits The Streets |
| 253 | Book Learnin | Ain't Enuf! |
| 254 | A Case Against Counterbalancing | ... And A Few Other MSF Teachings |
| 255 | Another Retread Has Trouble With Counter-steering | ... And Believes that the MSF's BRC is a 'Safety Course' |
| 256 | Neutral Steering | (Fact or fancy?) |
| 257 | Standing on your Pegs | Control AND Visibility |
| 258 | 'Advanced' or 'Performance' Training | and Track Days |
| 259 | Driving a Green Car Results in Our ... | KILLING A MOTORCYCLOIST |
| 260 | Motorcyclist Dies | Who Killed Her? |
| 261 | Left Turner in front of a Motorcycle | Gets what he paid for |
| 262 | 5 mph | is NOT trivial! |
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Videos 001-008
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8 |
8 |
03/18/2006
11:41 AM
by: James R. Davis |
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| Models
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Critical Speed Calculator
This model calculates the speed at which a vehicle will lose traction given the radius of a curve and the Coefficient of Friction of the roadway. This is usually called the 'Critical Speed'. |
1 |
1 |
05/27/2008
11:38 PM
by: James R. Davis |
James R. Davis |
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Lateral Acceleration & Lean Calculator
Given the radius of a turn and the speed of the motorcycle, this model calculates what the lateral acceleration and lean angle of the bike will be. |
1 |
1 |
05/27/2008
11:34 PM
by: James R. Davis |
James R. Davis |
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Quadratic Equation Solver
Whenever you can reduce an equation so that it takes on the following standard form:
Ax2 + Bx + C = 0
then you can use the quadratic equation solver to solve it. Note, there are ALWAYS two correct solutions for x! |
1 |
2 |
05/29/2008
5:18 PM
by: James R. Davis |
James R. Davis |
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Radius Calculator
This simple model allows you to calculate the radius of a curve given the length of a chord and its middle ordinate. |
1 |
1 |
05/27/2008
8:54 PM
by: James R. Davis |
James R. Davis |
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Skid Distance To Stop
Sometimes you just want to calculate how long a skid mark will be given a starting speed, the Drag factor components, and the assumption that you come to a complete stop without falling over or colliding with something. |
1 |
1 |
12/13/2009
10:09 AM
by: James R. Davis |
James R. Davis |
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Speed From Stopping Distance Calculator
Used to compute how fast a vehicle is traveling at the start of a known stopping distance. It assumes that all braking is done with a constant deceleration rate (such as would generally be the case if skidding). It also allows you to include PDR (Perception-Decision-Reaction) time, if any. |
1 |
1 |
06/19/2008
9:58 AM
by: James R. Davis |
James R. Davis |
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Speed Scrubbed During Skid
It is not intuitive, but skid marks do not represent speed. Instead, they represent energy transformation. That is, they represent the amount of kinetic energy that was converted to heat. This model calculates the amount of speed that is scrubbed during a skid based on the starting speed and drag factors. |
1 |
1 |
12/13/2009
11:27 AM
by: James R. Davis |
James R. Davis |
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Stopping Distance Calculator
This model calculates the fastest possible non-skid stop time and distance given Speed, Grade, Coefficient of Friction, and Braking Efficiency. It also calculates the maximum decelerate rate possible given the height of the CG, length of Wheelbase, and weight distribution. |
1 |
1 |
02/02/2007
3:08 PM
by: James R. Davis |
James R. Davis |
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Vault Speed Calculator
This model will calculate the speed an object (such as a motorcyclist) is launch at (in other words, the motorcyclist's speed at time of impact) given you know how far it is thrown, the difference in height between launch point and impact point, and the launch angle. |
1 |
1 |
06/18/2008
12:01 PM
by: James R. Davis |
James R. Davis |
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Lean Angle Calculator
This model will calculate the lean angle of the CG of your bike given Speed and Radius. Given the width of your front tire it will also calculate the actual lean angle of the bike. Finally, it will calculate the maximum cornering speed that is possible with your bike. |
1 |
1 |
02/02/2007
3:43 PM
by: James R. Davis |
James R. Davis |
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Center of Gravity Calculator
This model calculates the location of your Center of Gravity given as input the measured results of lifting the rear wheel off the ground. |
1 |
1 |
02/02/2007
3:35 PM
by: James R. Davis |
James R. Davis |
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Skid Mark Analyzer
This model calculates minimum speed at the time brakes were applied given the input of skid length, Coefficient of Friction, Grade, Braking efficiency, Collision speed (if any), surface moisture (if any), and Transient Braking Time. |
1 |
1 |
02/02/2007
2:49 PM
by: James R. Davis |
James R. Davis |
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Speed Calculator
This simple model calculates your motorcycle speed given the rear tire radius, final gear ratio, and engine RPM. Note that though you have to input seven values with this model, if you merely combined this model with two others (Rear Wheel Radius, and Gearing) you wouldn't need to enter anything. |
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1 |
02/04/2007
2:23 PM
by: James R. Davis |
James R. Davis |
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Rear Wheel Radius Calculator
This simple model converts the specification of your rear tire into the radius of the rear wheel. (This is necessary in order to convert wheel RPM into motorcycle speed.) |
1 |
1 |
02/03/2007
10:50 PM
by: James R. Davis |
James R. Davis |
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Horsepower Calculator
This simple model calculates your engine's horsepower given its RPM and Torque as input. |
1 |
1 |
02/03/2007
11:26 AM
by: James R. Davis |
James R. Davis |
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Gearing Calculator
This model computes the final gear and final drive ratios given the gear tooth counts for Primary Drive, 1st through 6th, and Final Drive as input. |
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1 |
02/03/2007
11:18 AM
by: James R. Davis |
James R. Davis |
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Drag and Lift Calculator
This model calculates the weight on the front and rear tires resulting from virtually all variables that could affect them in a dynamic state. In particular, you will provide static state configuration information then add such variables as Latitude, Altitude, Wind speed, and Temperature. |
1 |
1 |
02/02/2007
3:20 PM
by: James R. Davis |
James R. Davis |
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