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THE PERFECT FIT
FAST M-10 Rear Suspension Adjustments
M-10 Static Sag and Ride Height Settings
FRA Position
The FRA setting is the primary rear suspension adjustment. It will have
the most effect on the rear suspension performance. To adjust the FRA:
1. Refer to the initial set-up reference chart (page 63) to determine the
desired FRA position.
2. To adjust, loosen the hex bolts (1) attaching the rear lower shock
cross shaft to the rail beam.
3. Using a 9/16I wrench, loosen the jam nuts (2) on the preload bolts.
4. Adjust the preload bolts (3) to the desired FRA position.
5. Tighten the jam nuts.
NOTE: Make sure the preload bolt contacts the slide block before tight-
ening the jam nut.
6. Tighten the hex bolts. Torque to 35 ft. lbs. (47 Nm).
NOTE: When the M-10 suspension is new, it may take from 25 to 200
miles (40-300 km) to properly break in the springs and shocks,
at which time the suspension will be softer and may require
FRA re-adjustment.
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