- Apr 2012
- Irvine, CA
I am happy to see that you realized there IS a difference between the diameter(s) for the V3 vs. 200/55 TD. 7.5 mm is the actual difference in radius....we are not worried about diameter because we are only dealing with the height from the axle out.Thanks for volunteering
I've got a salvage auction V4S that I've turned into a trackbike. A while back I did a shakedown trackday at a slower pace to feel the bike. I set sag to 37mm front 28mm rear. I left everything stock with the exception of Pirelli TD tires(34 front 27 rear off the warmers) in place of the SPv3 tires. I weigh 192lbs without gear.
I had two suspension issues. I was blowing through the fork travel until I added two turns of preload and took the front compression setting to 3 'turns out' in the fixed settings. The bike also required quite a bit of pressure to initiate turns, which isn't surprising given the 16mm diameter difference between a 200/55 TD and a 200/60 SPv3.
I'm heading to the track again this weekend and have made a couple of changes that I think will help out. First change was to the forks, bumped up to 10w oil and the level is set at 170mm vs stock 230mm. I'm hoping this pushes me more towards the middle of the compression adjustment.
In the rear, I lengthened the shock from 312mm to 317mm in order to compensate for the 8mm difference in rear ride height from the shorter 200/55 TD.
I'm hoping these changes make sense, as changing them at the track is a bit of a pain.
The oil weight and height are interesting and I would like to hear how you like it.
If you are using one, how far from the bottom of the fork is your travel indicator? I think you mean 3 clicks out with respect to your suspension settings....seems like this is the opposite of what you are thinking....have you pushed on the bike to see what the compression feels like and is this balanced with the rear? How is your tire wear.
Pressures seem fine.