jasonsmith

Very clean, looks great.

You are correct, I totally got that backwards, the force will increase a lot quicker with less air. I still don't think the air does anything other than controlling the bottoming of the forks though. The air needs to be compressed for it to do anything past the springs and valving that are already in there. I think it has very little to do with the "balance" of the bike but is a great tool for tuning the bottom of your fork travel and brake feel. edit: added "and valving".

Your actual weight on the forks when you do a stoppie is dependent on the angle of your stoppie and the inertia that you built up prior to your stoppie as well as a bunch of other dynamic factors. It can't be calculated that easy in my opinion. Your air chamber upon your fork compression compresses, just like in hydraulics. If you have enough air to compress to a higher level, the force of the air on the surface area of your oil in your shock combined with the spring pressure can easily overcome the minor weight of you and bike. The less air the less it will compress upon fork compression the less it will fight back. The more air the more it will compress and the more it will fight back upon compression. This thread to me has been mostly about the "balance" of a bike more so than tuning per se, but being such an awesome thread it may be a good idea to talk about the air a little bit.

Sounds good! :fing02: I just installed a Penske on my street Vtec with a 1150 lb spring. With 10mm of pre-load I got 32-33mm Rider sag(in gear) with 9.5mm of free sag, pretty happy with those numbers and I weigh 185-190 at the moment! Finally changed my fork fluid after 40k miles! :blink: Now I just need to got out on it and work of rear shock settings. :wheel: My Ohlins has the a 1050 lb spring and I think I got 10/32mm on it? BR .90/1050 for 185-190 sounds bang on. oh I so need to put my 1200# in.... just don't wanna take it apart again. I think I'll loose 15 lbs, may be easier.