Motorcycle Suspension Fork Lock Nuts / Bushes / O-Rings

Suspension Lock Nuts & Bushes

All rebuildable suspensions need basic shared parts — locknuts to hold damping pistons to base towers, Teflon lined shaft collars or acetal rod bushes to keep sliding tubes concentric without excess friction, mid-speed valve (also called refill or non-return) springs to tune shim stacks and rubber o-rings to keep oil and gas separated. Motorbike front fork and rear shock absorbers both need these when servicing or tuning, and this category gathers those essential wear items.

Parts to secure, align and seal fork and shock internals

• Secure damping pistons and assemblies with service-grade locknuts
• Reduce friction and maintain concentricity with Teflon-lined collars and acetal rod bushes
• Tune mid-speed response with refill/non-return springs and small valve springs
• Maintain pressure integrity using rubber o-rings and seals; replace wear parts at every rebuild

Recommended Pairings

Consider matching these parts with Suspension Tools for accurate rebuilds. For damping shims see our Valving Shims section and use the Shim Factor Calculator.

Shop Suspension Lock Nuts & Bushes

Browse lock nuts, rod bushes, collar seals, valve springs and o-rings for forks and shocks. For workshop guidance see our lock nuts and fasteners notes and the suspension fluid weights table.