Motorcycle Shock Shaft & Mounting Lug Lock Nuts

Shock Shaft Lock or Jam Nut

Right in the centre of your motorbike's coilover is the shock shaft. At the top end it holds the piston inside the shock absorber body while at the bottom end it screws onto the clevis or yoke — locked strongly onto the main rod using OEM KYB or Showa jamnuts. Exposed to mud and dynamic forces, locknuts should be cleaned and serviced as often as neighbouring linkage bearings & seals.

Function and fitment for shock shaft locknuts

• Secure the piston and main rod connection to the clevis or yoke mounting
• Provide a robust locking point for rebound adjusters and end-eye assemblies
• Resist contamination and dynamic loads; require routine cleaning and servicing
• Work with small guides, bushes, o-rings and needles that control damping

Recommended Pairings

Consider matching locknuts with workshop gear and service parts such as Suspension Tools, mounting bearing spares and complete mounting bearings or chassis bearing kits.

Shop Shock Shaft Lock or Jam Nut

Browse our range of OEM and replacement jamnuts and locknuts for reliable shock assembly security.