Automotive Suspension Valving Cup Washers

Cup Washers

All rebuildable suspensions need shims & washers — Teknik has the largest collection, more than 2 million in stock. Our range includes complete bulk kits, ring shims, check shims, cup washers and valve stop washers. Valving shims are thin and designed to flex from oil pressure, absorbing energy and creating damping force; cupped washers limit the distance that thinner outer valve shims can flex and act like a flat check shim or a valve stop washer. Use our Shim Factor Calculator when changing shim stacks. We also stock locknuts, teflon lined shaft collars, acetal rod bushes, mid-speed valve (also called refill or non-return) springs and rubber o-rings for fork and shock rebuilds.

How cup washers control shim stacks

• Limit shim flex to set mid and high speed damping characteristics
• Provide a cupped bearing surface in shim stacks for consistent valving
• Available in bulk kits and ring, check and valve stop variants for forks and shocks
• Essential wear parts for workshops and DIY rebuilds — replace every rebuild

Recommended Pairings

Consider matching cup washers with Suspension Tools and related fork locknuts & bushes or shock absorber locknuts & bushes.

Shop Cup Washers

Explore our cup washers, bulk kits and complementary shims to get your suspension rebuilt and tuned. Read more on lock nuts and fasteners or compare oils in our lock nuts and fasteners and suspension fluid weights table.