| Author | Message | ||
     Phelan |
Hey all, one of my S2s (previously JVV's bike) came with a Penske shock. I'm trying to find some documentation for setting a baseline as well as finding out which model it is. Anybody have any paperwork with their Penskes, or have a link where I can find this info? | ||
| Ratbuell |
I've got the book with my S1W's Penske at home; shoot me a PM and it'll remind me to dig it out tonight. Baseline is the same as factory though - set your sag with the spring preload rings, compression/rebound to taste. I don't recall anything like the OEM owners manual's "if you weigh this much, turn it that many turns out"...but I'll dig. | ||
| Screamer |
Although the S2 is less subceptible, some tube frame bikes had excessive yield at the isolators which would give an exaggerated distance when measuring (rider) sag. The recommended procedure to judge preload settings on tube frame bikes eventually changed to measuring the shock stretch. If you're going to use rider sag measurement (at some rearward point on the bike) for you may want to consider confirming how much "sag distance" is due to isolator compression and subtract it from your measurements. | ||
| Williamscottrobertson |
How do you measure the shock stretch? Distance between the shock eyes when loaded and unloaded? And where can you find what the measurements should be? | ||
| Screamer |
I should clarify, it's not the difference between unloaded and loaded length, it's the length of the shock (front eyelet center to rear eyelet center) when loaded. Owners/Service Manual info for the late Showa (loaded): S3/T, X1, M2 --- 15.2-15.5" M2L --- 17.4-18.6" S3/TOwners/Service manual info for the early Showa (loaded): S3/T - 16.9-17.2 inches X1 & M2 - 17-17.4 inches M2L - 17.4 - 18.6 inches The adjustment and torque procedure for the shock length on the late Showas is very specific. The 2002 manuals and multiple Buell Service Bulletins and I-Sheets contain the procedure. | ||
| Akbuell |
What Screamer said. My Penske book advises "BUELL- use the book spring settings." So, with an assistant, set the length, mounting bolt to mounting bolt, with the rider in usual riding gear on the bike, at the 15.2-15.5 for an X-1, ect. Once in the ballpark, edge toward the short length for quicker steering, longer for better drive off the corner. Then fine tune with rebound and damping. See the FSM for more info. Hope this helps, Dave | ||
| Williamscottrobertson |
I haven’t looked at the S3 book in a while. Been working on my S2, shows the measure from the ground method. I’ll review the preload instruction for the 2000 S3 again. I wasn’t sure why the change. The iso sag makes sense. | ||
| Mike_lee |
Can i ask, you dont have the (96)s1 listed. My shock is something like 14.5 eye to eye. So when setting sag, ideally id like to have 14.5 eye to eye when im on bike? Dont bother measuring from axle to tail? | ||
| Screamer |
When using the late Showa (short 14"+) shock, the shock should measure15.2" to 15.5" when loaded. That includes the S1. Yes - I would not bother measuring axle to rail. | ||
| Mike_lee |
Thank you Sir |
