Motorcycle Suspension Mid-Speed Valve Springs

MSV / Refill Springs

All rebuildable suspensions need shared parts - locknuts to hold damping pistons to base towers, Teflon lined shaft collars or acetal rod bushes to keep sliding tubes concentric, tiny Mid-Speed Valve (also called refill or non-return) springs to help tune your shim stack, and rubber o-rings to keep oil and gas sealed. These small MSV check springs keep sections of shims separate for oil flow until pressurised and while they are usually little wire coils they can also be wave washers or o-rings. Upgrade options and dyno-tuned assemblies are available in our fork valving sets. Find shims in our Valving Shims, check exact shim equivalence with the Shim Factor Calculator, and reference lock nuts and fasteners or our suspension fluid weights table.

Mid-Speed Valve springs for precise damping control

  • Keep shim sections separate until pressurised to control oil flow
  • Create progressive damping - soft on small bumps, strong on big hits
  • Common wear part for both forks and rear shocks; replace at every rebuild
  • Available as coils, wave washers or o-rings to suit different valving needs

Recommended Pairings

Consider matching MSV springs with Suspension Tools and fork valving or shim kits for balanced damping.

Shop MSV / Refill Springs

Browse MSV check springs, refill springs and related rebuild parts to tune and maintain your motorcycle suspension.

21 Products Found

MSV / Refill Springs

All rebuildable suspensions need shared parts - locknuts to hold damping pistons to base towers, Teflon lined shaft collars or acetal rod bushes to keep sliding tubes concentric, tiny Mid-Speed Valve (also called refill or non-return) springs to help tune your shim stack, and rubber o-rings to keep oil and gas sealed. These small MSV check springs keep sections of shims separate for oil flow until pressurised and while they are usually little wire coils they can also be wave washers or o-rings. Upgrade options and dyno-tuned assemblies are available in our fork valving sets. Find shims in our Valving Shims, check exact shim equivalence with the Shim Factor Calculator, and reference lock nuts and fasteners or our suspension fluid weights table.

Mid-Speed Valve springs for precise damping control

  • Keep shim sections separate until pressurised to control oil flow
  • Create progressive damping - soft on small bumps, strong on big hits
  • Common wear part for both forks and rear shocks; replace at every rebuild
  • Available as coils, wave washers or o-rings to suit different valving needs

Recommended Pairings

Consider matching MSV springs with Suspension Tools and fork valving or shim kits for balanced damping.

Shop MSV / Refill Springs

Browse MSV check springs, refill springs and related rebuild parts to tune and maintain your motorcycle suspension.