Description
Wilbers model 631 is a 3-way rear shock with:
- Rebound damping adjust.
- High and low speed compression adjust.
- Available with either Threaded, Hydraulic Preload Adjuster, or X-PA Mechanical Preload Adjuster for optimum sag setup.
- Fully rebuildable and five-year warranty.Three Spring & Knob color choices:
- Blue Springs with Red Knobs. (Blueline)
- Black Springs with Grey Knobs. (Blackline)
- Blacked out with Red Knobs. (Nightline)
- See menu above to select.








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