Penske Racing Shocks 8975-DRAG - Manual (Page 6)

PS-8975-DRAG (Double Adjustable) 2010/2011
6
To Set Rider Sag:
Shocks will arrive from the factory with ½” of spring preload. Rider sag must then be set AFTER installing
the shock on the bike. After sag is set, tighten the 2 Allen screws (3mm Allen) in the spring perch to
prevent loosening. Avoid over-tightening – nip-up gently to avoid damage to the body threads.
STEP 1
1. Without a rider on the bike, have an assistant lift the rear of the motorcycle until the rear wheel
is off the ground slightly. One person should hold the front of the motorcycle, straddling the
front tire.
2. Measure the distance between the axle centerline and a convenient location on the rear sub
frame or tail.
3. Record this measurement as "A". Your Bike:__________
STEP 2
1. One person should hold the front of the motorcycle, straddling the front tire.
2. Have the rider, wearing all of their gear, sit on the bike in a riding position.
3. The third person should then measure the distance between the axle centerline and a
convenient location on the rear sub frame (same locations used in Step 1).
4. Record this measurement as "B". Your Bike:__________
STEP 3
1. Subtract "B" from "A". This number is your rider sag. Target: 12mm-24mm Rider Sag.