Secondary Preload

319 Views 2 Replies 3 Participants Last post by 97mach1, Oct 7, 2006

argento102

Discussion Starter · Oct 6, 2006

Hi Guys;

If I set my secondary preload at 14-16lbs for lake running, why would I be advised to set it HIGHER for trail riding..17lbs?? Better / faster backshifting?

D

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crazysledhead

· #2 · Oct 7, 2006

Quicker backshift, better throttle response is the easiest way to put it. Dips and moguls are not encountered on a lake race, therfore no need for backshift. Anyone else want to be more precise?

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Basically, yeah. I find that it's one component of the rate at which the secondary opens up and closes. The helix angle effects it, too.

More secondary pre-load and it will upshift slower
Less secondary pre-load and it will upshift faster
Lower helix angle and it will shift slower
Higher helix angle and it will shift faster
More secondary pre-load and it'll backshift better
Lower helix angle and it will backshift better
The more pin weight in the primary, the faster the shift.

Get the balance between all these just right, and it's a whole lot of FUN.

I am still looking for that combination on my sled.

Getting closer, though.

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