I'm trying to set the sag on my bike and I have a new Ohlins rear shock. There's a pin next to the hydraulic preload hose where it fits into the collar. This pin prevents you from rotating the rings to adjust preload mechanically. There is nothing in the instructions refering to this pin or its' removal to adjust the preload. Anyone know what I'm referring to and have any ideas?
Here's a pic. Look at the 46PRCLS Vertical and look next to the preload hose as it enters the shock. See that little pin to the left? SOB!
(https://www.ccsforum.com/proxy.php?request=http%3A%2F%2Fwww.ohlins.com%2Fimages%2Fproduct_photos%2Fmc_46prcls.jpg&hash=b23e45618c6205bf9d77a78159e0df9b92b29229)
And a close-up...
(https://www.ccsforum.com/proxy.php?request=http%3A%2F%2Fwww.dcsportbikes.net%2Falbums%2Falbum45%2FDSC00030.thumb.jpg&hash=3712aebe4121fb719a15611c9fffb583a426ddc4)
Got the answer from local GMD guys. Thanks anyways.
I glad you got the answer. I could not find it.
Dawn :)
I was surprised so many (I posted on local website as well and called fellow riders/racers) didn't know the answer. Apparently on shocks with the remote hyrdraulic preload you must remove the shock from the bike, remove the spring to remove that pin if you want to adjust preload mechanically. According to GMD the hydraulic preload is more effective than I thought and it has a good range of preload adjustment. They said it will give you a range of about 15mm sag which is pretty good. Getting it sprung for your weight is very important and they are counting on that, thus the hydraulic preload. So it is easier and quicker to adjust preload. I was told by another racer that the remote preload was useless.
Okay, I feel better now.
Just wondering how you like the ohlins? Thinking of using one on my next bike R6. What bike were you putting this on?
Yep, that is correct about removing spring to adjust mechanical preload. Pain in the a** actually, I kind of wish they would have made it so you could adjust it without disassembly. Also, I would be suprised if there was a 15 mm of adjustment. I would think about 12mm is max. GP
Oops, just reread your post. On my F4i it actually has more than 15mm effect on SAG. Quite a bit of sag range as long as initial preload is close for your bikes weight vs. spring rate. If your initial setup is off, there usually is not enough range in the hydraulic preload and you must disassemble to get correct range. Also, keep an eye on the adjuster as they will go bad without notice. It is good habit to make it a prerace weekend check of your actual sag to ensure the hydraulic adjuster did not get an air bubble or leak in it. GP