|   Naestep- Went for the AD-12- Fine tuning tips? | Calpolyclimber
Oct 20, 2003 6:17 PM | | I just got my AD-12 today and popped its cherry on a nice little rocky ride near here. Wow... I really like this shock. It smooths out the bumps A LOT better than the old Vanilla R.
Anyway, I was hoping you could help me out with some tips on fine tuning the rebound and compression. I weigh 175, and I am running it at about 200 PSI, which seemed to give me a good sag. It was riding perfectly at slower speeds, but was a little bouncy on some of the bigger hits (not drops, just bigger rocks) and a little jittery at higher speeds when on washboard type terrain. I'm thinking that I need to increase the rebound damping, and maybe drop the PSI and raise the compression damping a little. Does this seem reasonable? It just seems to be kicking a little after it soaks up the hit. And when I say a little, I mean a little. It still performed much better than the Fox.
Thanks again for all the help.
~Alex |
| re: Naestep- Went for the AD-12- Fine tuning tips? | næstep
Oct 20, 2003 7:03 PM | | Keep your pressure where it is for now. Remember, if there is a downside to VPP/dw type suspensions it's that you have to maintain proper sag, so fiddling with the air pressure is a no-no unless it's for the express purpose of dialing in sag.
Also, make sure to compress the shock ~12mm after initial pressurization in order to pressurize the negative chamber. That'll steal some of the pressure from the main chamber if the shock was empty (or low) to begin with.
I'm still running 245 to 250 psi and hitting the scales at around 200 to 205, riding weight being maybe +5 pounds.
You'll need to crank in the rebound on this shock about half way, then experiment. It's obvious with zero rebound this shock will launch you into low earth orbit if you give it the opportunity.
I know you don't want to think about this now, but you may want to tear into the internals and verify (or reset) the position of the volume plate. Of the three settings, the "largest" gives the most linear stroke, and the two smaller two cause the piston to ramp up more and might even contribute to the powerful rebound.
I don't know what position the volume plate is set at coming from Cane Creek, and I'm not sure if they can tell you for sure, either.
Lastly, compression. If you want a softer stroke, use less, if you want a firmer response, crank it in. Keep in mind it's an air damped shock, and air isn't an easy medium to damp, so using more damping isn't necessarily a bad thing. I've got mine dialed very far in, which gives me a good firm platform to climb on but doesn't prevent the shock from using its full stroke on bigger hits.
But again, the important thing is proper sag through PSI. Rebound, compression and volume build off of that.
næstep |
| re: Naestep- Went for the AD-12- Fine tuning tips? | Calpolyclimber
Oct 20, 2003 7:22 PM | | Exactly how much sag are you running? I've got about about a quarter inch or so right now, does that seem about right? |
| More sag... | næstep
Oct 21, 2003 3:45 AM | | You'll want more. Somewhere in the range of 10 to 13mm you'll find your sweet spot. So yeah, you're right, you do want to decrease pressure a little bit.
næstep |
| |
