Motorcycle Shock Bump Stop Guide Cup

Teknik Bumper Cup or Spring Seat Stopper

Bumper Cup or Spring Seat Stopper

At the bottom end of a motorbike coilover there needs to be a way to connect the coil spring to the main shock absorber shaft and hold the bottoming rubber safely in place. These bumper holders attach to the base of the damper rod, transferring suspension spring travel directly to it and taking the force when the shock bottoms out.

Spring seat stopper purpose and benefits

  • Securely locates the spring on the damper rod and keeps the bottoming rubber in position
  • Absorbs bottoming impacts with conical stopper cups designed for hard use
  • Lock ring retainers maintain spring concentricity around the shock body for safe spring fitment
  • Provides a perch or seat to distribute pressure and can act as a spacer to adjust preload and sag

Recommended Pairings

Consider matching with Suspension Tools and consult our guides when replacing shock springs or selecting spring rate, preload & sag. See also shock spring hardware.

Shop Bumper Cup or Spring Seat Stopper

Browse our range of stopper cups, lock rings and spring seats to find the correct parts for your shock; if bottoming persists, learn how to tune compression damping or consider damping piston valving kits.

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Bumper Cup or Spring Seat Stopper

At the bottom end of a motorbike coilover there needs to be a way to connect the coil spring to the main shock absorber shaft and hold the bottoming rubber safely in place. These bumper holders attach to the base of the damper rod, transferring suspension spring travel directly to it and taking the force when the shock bottoms out.

Spring seat stopper purpose and benefits

  • Securely locates the spring on the damper rod and keeps the bottoming rubber in position
  • Absorbs bottoming impacts with conical stopper cups designed for hard use
  • Lock ring retainers maintain spring concentricity around the shock body for safe spring fitment
  • Provides a perch or seat to distribute pressure and can act as a spacer to adjust preload and sag

Recommended Pairings

Consider matching with Suspension Tools and consult our guides when replacing shock springs or selecting spring rate, preload & sag. See also shock spring hardware.

Shop Bumper Cup or Spring Seat Stopper

Browse our range of stopper cups, lock rings and spring seats to find the correct parts for your shock; if bottoming persists, learn how to tune compression damping or consider damping piston valving kits.