Most people don't measure rake and trail, too hard to do consistently and accurately. They work instead with rear shock length, fork height relative to the top triple and/or height of a fixed point on the front of the frame to the ground.What is the proper rake & trail range for the SV650-S? Is there an ideal rake & trail? I would like to quicken the turn-in. Oh, and it's a track bike so no street application if that matters.
i think you are mixing up the effects of geometry change.don't listen to this straight line stability crap some throw around.
you riding on track, your bike will be more stable with lowered front or raised rear or both. tank slappers and twitching actually comes from front been to high or rear squatting to much. it will also push wide in corners and front will lose traction sooner.
less than stockWhat is the proper rake & trail range for the SV650-S? Is there an ideal rake & trail? I would like to quicken the turn-in. Oh, and it's a track bike so no street application if that matters.
no, I am not. try riding stock geometry at track at good pace and than try less stable one (theoretically) and you tell me which one is more stable.i think you are mixing up the effects of geometry change.
and what is there different than what I said?Quote from Keith Code's Twist of the Wrist: “the process of head shake (which can be the beginnings of a tank slapper) begins when the tire hits a ripple and, along with the suspension, compresses. This throws the wheel slightly off-center. When the suspension and tire release, the wheel is light and flicks back toward a centered position, but again, slightly off-center. Still off-center when it loads again from the next ripple; again it is flicked past its centered position. The cycle of flicking back and forth repeats as the front-end seeks to stabilize through this automatic and necessary self- correcting process. Any bike will do it, and what most riders fail to realize is that this shake is a necessary part of the bike’s suspension system.” The wheel flicks at more extreme angles in relation to the road on bikes with small rakes than bikes with huge rakes (choppers). Example: MV Augusta uses steering dampers, OCC does not
buel blastthe general principle of chassis geometry is what he was going for.
the comparison between sport bikes and choppers was mine (not in quotes). 01 buell blast advertises 25 degree rake, wikipedia says the sv650 also has a 25 degree rake. however when they measure the rake, they measure it UNLOADED. once the rider gets on and the suspension compresses, the bike with the weaker front suspension drops more thus reducing the rake making it more prone to headshake and tank slappers - less stable.