Excessive front tire wear....can it be suspension related?

[Speedballer347]

if your rebound is slow and you have the adjuster all the way out, you need to get some work done on those forks.  For me, that would be an absolute showstopper...

The Thermosman did them. I hate to send them back and have to wait again.  Man, I dunno.....the bike feels sooooo good other than the front tire wearing fast. 
I'll check my guage and talk to Tigershark about overheating issues like Super Dave says, and I'll also keep in mind what Drucker said.  Perhaps switching to a Green (soft) instead of a Blue (supersoft) will cure it all.

Thanks for all of the advices!!!!

[Speedballer347]

Ooops...forgot to add....

In regard to transmission issues with this bike.

Bike shifted great on the street during break-in.  Then wouldn't shift into 5th and then 4th gear as soon as we took it to the track.  The only thing I had done to the bike before we track'd it was change the oil (Castrol GTX 10-40).
I dumped the Castrol and put Honda motorcycle 10-40 in it, and after a session at Putnam it started shifting correctly again.  Transmission seems fine. I suspect for whatever reason the oil was keeping the clutchpack from seperating/disengaging when I would pull the lever.
Problem seems to be gone 

[Super Dave]

Motorcycle transmissions are simple.  It should shift as long as the load is removed from the dogs.  That can be done by letting off the throttle, using the clutch, or cutting the ignition. 

Are you holding the bike WFO and fanning the clutch?

[Jeff]

If the rebound is that slow, there is something wrong with the setup and I would question the entire job.  Thermosman is (from what I can tell) a very reputable shop.  They likely will not have an issue looking at them again for you. 

Transmission...  Oil is not your cause (so long as you have some).

1.  Did you change your shift pattern to GP?  If so, the angle on the heim joint may be off enough to cause a problem.

2.  Do you have rearsets installed?  If so, there could be an issue with binding (even slightly) which can prevent the shift rod (through the motor) from returning all the way to allow the plate on the end of it to engage the star again and hit the next gear.  I run into this every now and again.

But again oil, especially a like viscosity will not cause a shifting problem.

[barryd]

Super soft front at Putnam on a hot day is a bad choice... BAD choice

[joewambo]

    Putnam is my home track, been there many times on a  03 gsxr 1000 before turn 8 (dead bear) guardrail claimed it.  The best setup i could find was the front forks raised 10 mm in the triple clamps.  Rear penske 4-5 threads from bottom with 10 mm of spacers on the shock mount because i was using a 180/55 tire.   I ran #5-6 compression on the shock. (penske shock)  Rebound was 13-15 clicks out from full stiff.   I gained two seconds at every track i went to including blackhawk after putting the shims in the rear to make the geometry more aggressive, but it was a 180 tire on a 1000 rim.  I used to burn up rear tires that looked like your front except worse at putnam until i made the geometry change.  After this the tires wore evenly with no tear on either front or rear.   In the end i was running mid-high 1:14's consistently.  I must say one thing though,  the track seems to have less grip every year especially if the temperature is high.  The pushing your feeling may be because of the grip of the track itself.  I went there probably a month and a half ago on a 85-90 degree day and slid all over the place,  so it may not be your geometry only the track grip.  Every one
there that day was complaining about there lap times being @ 1.5-2 seconds slower than usual.   Track temperature was above 120 degrees.  I've heard that the 05-06 gsxr steers much quicker than the 03-04 so aggressive weight on the front may not be the answer.   Looks like cold tear on the front due to the paralell lines to the rotation of the tire.  Maybe take a couple pounds out of the front.   Anyway i hope any of this helps you. 


Joe  #530 expert MW