| Author | Message | ||
     Cowboytutt |
Hey guys, I'm a friend of Chase McFarland of Chase McFarland Racing here in Northern California. I was visiting with his mechanic Steve Burns here in Ukiah who was helping me lower the fork tubes on my 09 1125 CR when Chase's Dad Dennis came by and showed me the back wheel of Chase's racebike. Check this out!!!! The purple stripes were aligned when the tire was first mounted! -Tutt  | ||
| Boogiman1981 |
sure it can under the right circumstances | ||
| Carbonbigfoot |
Wow. Gives new meaning to "ride the wheels off it". R | ||
| Cowboytutt |
I think it says volumes about the state of tire technology and how much adhesion they have, and the torque of the 1125 Buell motor. The internals of the motor are totally stock and it basically has a pipe and retune. -Tutt | ||
| Kevin_stevens |
It doesn't say a darned thing about the torque of the 1125 Buell motor. That had to be done with the available traction on the rear tire... ergo any bike with enough torque to exceed that - in other words, to do a burnout - had enough to do it. KeS | ||
| Cowboytutt |
I'm still impressed that the bike and Chase can do that myself since it wasn't a standing burnout but while racing on a track. This might very well happen all the time with race bikes and professional riders but I'm still impressed! I've never done it, have you? -Tutt | ||
| Kevin_stevens |
Not on a bike, but I don't race or run super low pressures. I've done it in cars during autocross. Dirt bikes, of course, spin theirs routinely due to their low pressures, hence rim locks. Look at it another way - if you didn't mark the sidewall, how would you ever know? Any how many people do that? KeS | ||
| Cowboytutt |
Kevin, your correct and I've never marked my tires either. I used to have a 98 Hayabusa that I road fairly well and I kept reading stories about how guys could do burn-outs coming out of the turns while leaned over! Not me, Man! I guess a lot of race bikes can do this but it takes some stones to be racing around a track when it happens! At least to me it does! Still, my CR is due for it first tire change and I think I'll mark it just to see! No worries. I just had never seen the phenomenon before and thought it was very cool! -Tutt | ||
| Fresnobuell |
Kevin, so sounds like you know about tires spinning on the rim? Personal knowledge or speculation? Since the problem of tires spinning on the rim is mostly an issue in Superbike racing, I would say the power and torque of the motor is definitely a factor. | ||
| Afhans |
I ride with a guy who has an XB12. Whenever he is leaving a corner or round about he gooses the throttle. It does one of two things. It is spins his rear tire or stands is bike up and shoot him out like a pinball. Back to the post. Awesome pick. I have yet to earn this bragging right. | ||
| Kevin_stevens |
Actually, come to think of it I *have* done that on another bike, my ZX-14. I remember changing tires after a track day and having someone comment that the weight dot on the tire had moved relative to the valve stem. (shrug) Don't think it's that big a deal depending on pressure and tire lube. KeS | ||
| Fast1075 |
Every tubeless tire I ever ran on a drag bike did that to one degree or another. Things don't get really wierd until only one side of the tire slips. | ||
| Ponti1 |
Interesting for sure...I would be interested to know the impact, in terms of taking the wheel/tire combination out of balance? | ||
| Cowboytutt |
I'm wracking my brain figuring out how I could do this even if I wanted too. I've not invested in track days and have used street tires but never saw a set that got as scrubbed as what is in the photo. From what everyone is saying, it sounds like a track phenomenon on racing tires. -Tutt | ||
| Boogiman1981 |
ex bro in laws mustang would do that easy peasy if you have a good amount of traction and a good amount of torque the weakest link is the tire/wheel interface think about it smooth metal sometimes even painted with smooth rubber even if a soft compound it's still smooth. like mentioned above unless you mark it or take close note of the relation to any natural markings on the tire and where they line up on the wheel you'd never be the wiser | ||
| Kevin_stevens |
Is that a Kawasaki Z1-R parked in the background?!? KeS | ||
| Cowboytutt |
Kevin, I think it was Steve's custom "Kawalski" which is an interesting bike. Actually, Steve has some very interesting modified old bikes that he is working on or has previously built. I will go back and take pics for you guys next time I'm there. -Tutt | ||
| Fast1075 |
I would be suprised if it is not a Z1-R....cool bike...MkII motor..big pin crank, stronger cases than MkI motor peanut cam chain and same deck height as the early motor....still has the small valve head and congested 2-3 intake runners... THE preferred base motor of drag racing...add some custom pieces, and a Modified J model big valve head...you have a motor that will run in the 8's for several seasons with no problems (as long as you have a good predictive maintenance program....I have been in the 7's on one of those motors (modified)...with a touch of "juice"....actually, a LOT of juice.  | ||
| Cowboytutt |
Fast, if this is the bike I'm thinking of, it has a custom aluminum swing arm and a few other cool goodies. I will do a post of Steve's Shop one of these days after Laguna Seca is over. -Tutt | ||
| Jsg4dfan |
Looks like it might be a Z1R turbo to me. I remember the mag reports on those when I was a kid... | ||
| Drdorsey |
I just had my rear tire replaced. Corsa III. (To match the pristine front tire LOL) I couldn't get the bead broke so I took it to Casey Cycle City. They said they had to balance every tire they install. I told the service manager that I thought the wheel itself was balanced. That way there would be a heavy spot at the vlv stem, not match the out of balance tire to an out of balance rim. That makes more sense to me especially since the tire is sliding all over the wheel. | ||
| Firemanjim |
Scott,good call,I think that round item just below the gas tank is the air cleaner on the carb.Now that would be a cool bike. |
