Suspension/ Tire wear help needed - Triumph675.Net Forums
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post #1 of 35 Old 09-06-18, 09:55 Thread Starter
ShaLaMae
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Suspension/ Tire wear help needed

I’m struggling I need help.
I have a 13 Daytona R.
I have a TRS Dog
I removed the shock spacer an added a 3mm washer for ride height.
Dropped the forks 3mm before flush
Fresh fork oil and fresh rear stock TTX
I was using SC 2 rear both 180/55 and a 180/60 switched to Michelin pro Evo 180/55
Both tires same issues side wall where I’m rolling on out of the corner I’m tearing it.
I’ve gone all ove the map with pressure.
Both tires I’m best with wear on the high side of PSI
I’m a fast track day rider very experienced.
I’ve tried being as smooth as possible with roll on “ it helps but not much”.
Is it the shock or am I not set up correctly
I just want a clean tire or as close as I can get. Don’t want to change the shock but I’m gonna have to if this keeps up.
So far I’m not a fan of TTX but if it’s me being out of range I’ll try to fix my numbers.

I hope this makes sense to someone I’m typing on my phone quick on coffee break
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post #2 of 35 Old 09-06-18, 10:15
MGFChapin
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Need pics.
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post #3 of 35 Old 09-06-18, 13:34
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Quote:
Originally Posted by ShaLaMae View Post

I removed the shock spacer an added a 3mm washer for ride height.
Dropped the forks 3mm before flush
Yes, some pics would help. Purely basing on what you posted about the forks and shock spacer, it sounds like the tire is tearing because of too much weight on the rear. By lowering the forks down to 3mm above flush and changing out to a smaller shock spacer, you have essentially lifted the front of the bike with more weight going to the rear.

However, pics would definitely help to diagnose.
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post #4 of 35 Old 09-06-18, 17:51 Thread Starter
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This is at 24 PSI. I was told by the track tire guy that I trust that low PSI is 18 and that's really low and the high side is 26PSI .
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post #5 of 35 Old 09-06-18, 18:08 Thread Starter
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this is after I pumped up the PSI over 26. But by this time my tire was all done. I spent this tire after ond day of 15 minute sessions every hr from 9-4 . The spot above the line on the right side is where the shredding is happening. The last picture is showing the throttle wear
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Last edited by ShaLaMae; 09-06-18 at 18:24.
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post #6 of 35 Old 09-06-18, 18:09 Thread Starter
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Anothe one
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post #7 of 35 Old 09-06-18, 18:11 Thread Starter
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post #8 of 35 Old 09-06-18, 19:28
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Higher psi isn't necessarily better. Go too high and you'll get cold tear. Do you know how much psi was increasing from cold to hot? Or even better, do you know the carcass' temperatures?

My guess is your pressure is too high, and you also have too much rebound damping. Back off rebound a couple clicks at a time, and try lowering pressure to the middle of the range.

I don't think geometry is an issue here because you may have raised the rear by 3mm, but you also dropped the forks and you're only running a 180/55. Is the bike running wide on exits?
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post #9 of 35 Old 09-06-18, 19:45 Thread Starter
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Sorry I should have explained better.
This happened with my SC's Hot tears till I kept bumping up PSI.
I would run a SC2 at 33PSI and that would give me the "best" wear. Anything below that pressure and I would hot tear.

I did the same with the EVO's. I started with a lower PSI. I was told by a top LRRS/CCS racer TO GO LOW PSI. I was cautious around 24psi and got a hot tear. Stupid me read it backwards and lowered the PSI more by a pound. Problems were amplified.
I then put a lot of Air in and get what is close to a cold tear. Not a true cold tear but in the making.

I keep hitting my head against the wall and it's starting to hurt.
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post #10 of 35 Old 09-06-18, 19:53 Thread Starter
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I didn't see your last question.
My bike will do ANYTHING I ask. Tracks like its on rails.

I do have issues with steep inclines that suddenly flatten. I am unstable. I will wheelie or it will just get lose on the rear tire.

It's almost like the front tire should have more weight on it. I jacked up the ride height but that wasn't to answer. It made the rear feel like it was on the brink of a high side.
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