My goal is to never crash a wheelie at over 40mph on the street. What did this guy do wrong in the first video? He popped it up good and all of sudden the bike got a nasty wobble. He closed the throttle which smashed him into the pavement but it seems like at these speeds the gyro should hold you stable. The second video is a gsxr at 3:31 and it unstabilizes at about the 12. My F4 starts to swerve/wobble right when I'm about to scrape between 5-15mph, needless to say I can't scrape yet.

http://www.youtube.com/watch?v=QKUwogOKkDg

http://www.youtube.com/watch?v=7eU1_8OWoXc

 

There both the same video

 

Your bike can wobble at any speed of wheelie doesn't matter if your going 5mph or 150mph if your messy with the throttle, lean to one side to much, etc. it's gonna wobble. The reason you may be starting to wobble is possibly due to you putting to much pressure on your brake foot. Or possibly overall your just leaning to much to the right.

 

In the first video...... IT WAS THE LEATHERS!!!!!!!!!

Second video because it was a SUZUKI!!!!!!!!!!!!!

 

its also sit down wobble its much harder to control than a stand up or staggered. it also happens with gusts of wind got watch out for all the elements when it comes to the streets

 

i think he moved a little too much

 

he probably chopped the throttle

 

The first guy was off center when he caught a little wobble. If he powered out of it instead of chopping the throttle he'd be fine.

The second guy actually had some technique, so he got through it fine.

 

Everyone wobbles, everyone crashes, its only a matter of when

 

very very true

 

I've had many hairy wheelies on my 2000 R1.... they got worse as the the bike aged... the rear shock is sloppier than a used va-ja-ja!

rebuild those rear shocks! they go bad!

 

I just don't understand the physics of it. The gsxr guy looks like a good rider and recovered just fine. I just don't see why it gets the wobble in the first place. Everything is chill then boom! My wobbles are so fast back and forth that I can't manipulate my body fast enough to recover or stop it. When I'm choppy on the throttle it sways a lot but the wobble is a way worse feeling. The only thing I can think of is trying to make my body more rigid. I've never had a wobble on my CBR1000RR but that is over 30mph and feels stable as can be. But that video kind of takes away my nerve.

 

That does kind of make sense about the shocks. My F4 has 33,000 miles on it and never rebuilt the rear shock. It doesn't feel too bad but I can see how that might make the bike less stable.

 

I'm not that great at stunting but I don't think you should ever make your body rigid. A rigid body and stance won't allow you to react fast enough in certain situations.

 

Are you sure your wheel is in straight and/or doesn't have any fix a flat in it

 

if you don't want to crash over 40mph. don't wheelie over 40mph.

you can try to understand the physics all day, but the road may have some nasty groove that starts the wobble. bike can start a wobble with two wheels on the ground too if the road has bad groove.

Everybody things it's safer to do powerwheelies and to shift throught the gears ending wheelies at over 100mph. It's not safe, learn to wheelie low speed and use first gear.

video shows one thing. at those speeds the **** hits the fan fast

 

Where and who says that it's safer to "power wheelie"?????


Every thread i have read, or responded to has been AGAINST power wheelies, and shifting through the gears.

If you are "actually good" at wheelies, theres no need whatsoever to "go through the gears" while in a wheelie.



Only reason i "go through the gears" is to pop it up, then get into 4th or 5th, and then stay constant.

Pop it up in 3rd, go behind balance point, pull clutch, shift up to 5th, and tap brake, release clutch, and continue for as long as needed in 5th.


Only reason for that is to keep the revs REALLY low.


Although, theres no BS'ing a wheelie in too high a gear, if you drop a little, theres no power to save it.

 

crashing is a prat of sunting, get use to it and accept the fact your going to crash and most likely crash hard, i think most guys will agree with me!

 

tire pressure, **** tire, rear shock, dips in the road, wind gusts, how the road crowns to drain water, etc... point is there are many variables out there that can throw off anybody's wheelie. i've noticed that since i've been to lazy to put a new tire on, my bike loves to walk all over the road. fact is... it isn't "if" you wreck, cause you will, its when,where, and how fast you wreck that I worry about.. that's just part of it. it's a shitload of work, practice, bumps, bruises, broken bones, and paitience that teaches these guys how to do the things they do with their bike. It isn't a cake walk and by no means easy, to learn to stunt a bike. that's why out of 100 people at a local bike night 2 of them are riding slowboys thru the parking lot and the rest are watching. just my 2 pennies, man up and wear your gear and expect to crash.

 

I'm ok with crashing in lots, that is part of learning to go slow. I wheelie in the streets and feel confident. If I thought I was going to crash I wouldn't do it. In my opinion it is lame to stunt on the streets when cars are around if you can't do it safe. It just puts people in danger and gives bikers a bad name. There was a guy killed this week here. Reason, excessive speed and lack of experience. I don't care if people stunt on the streets if they know what they are doing but if you're going to crash keep it in the lots. That is why my "goal" is to never crash on the street. Goals aren't always reached but I'll try. I don't see any reason to crash a wheelie with a brake and a steering damper. That is why the first video makes me nervous. Everything looked fine then he suddenly wrecked.