[dlowe]

hey, im a noob to the forum, not really to mtn biking tho.
i just built a hardtail mtb w/ CF frame and 140 mm rockshox revelation. i got it brand new, in original wrapping and everything. i took it out, read all the manuals to make sure i didnt need to do anyhting before riding it, and it didnt really say anything. i pumped it up to proper psi (im about 170 lbs, so i put in 125psi) and adjusted the rebound action.
took it out on the trail, and when i hit the first root it just about bottomoed out. while on the trail, the fork was constantly compressed about halfway, and when i hit a bump, it just about bottomed out.
when i finished the trail, got home, and let the bike sit,, the fork took about 10 minutes to totally uncompress and would sit at the proper 140mm again.
whats wrong w/ it? what am i doing wrong? what do i need to do to get it to stay at 140mm?!

 

[dlowe]

 

[dlowe]

tried to post pics off my fbook....didnt work. ill try to get pics up later...im in class right now

 

[syadasti]

Dual air version I assume? Did you miss the part where they mentioned the positive AND negative chamber setup? See the section on air spring tuning, I think its page 5-6.

 

[dlowe]

it is dual air, i adjusted positive and negative pressures. ill take a look at it.

 

[dlowe]

any chance someone can post a link to the thread syadasti is talking about? i cant find it, the search function isnt working for me...

 

[IH8Rice]

any chance someone can post a link to the thread syadasti is talking about? i cant find it, the search function isnt working for me...

i think he is talking about the owner's manual

 

[syadasti]

i think he is talking about the owner's manual

Si:

http://www.sram.com/_media/techdocs/95-4015-022-000 print.pdf

 

[dlowe]

hahahaha...oops.......

im a noob, its ok. right?

 

[dlowe]

so yall think its just a matter of me not having the positive and negative pressure properly tuned?
is there some sort of break in period of new forks?

 

[jonKranked]

yes there is a break in period. but something like what you described typically is not part of it.


-make sure your rebound is all the way out, then dial it in.

-ensure your air pressure is right. If its right according to the charts, mess around with it. I have an '08 revelation dual air (non XX) and I run mine something like 30 psi lower than what they recommend for my weight (200lbs) because otherwise i don't get full travel.

from what it sounds like, there may be an issue though. if that's the case don't worry - SRAM is good with warranties and stuff like this on brand new products.

 

[BikeFan84]

also maybe try taking some air out of the negative chamber.

but what jon said, SRAM is pretty darn good with warranties.