NORTON COMMANDO MK3 REAR ISOLASTIC ASSY 067117

Norton Commando MK3 rear Isolastic assembly (part number 067117) — a complete rear Isolastic mounting kit for the 1975–1977 Norton Commando MK3. This kit includes all the components needed to rebuild and restore the rear Isolastic mounting system to factory specification.

The Isolastic system is one of the defining features of the Norton Commando design. Developed by engineer Stefan Bauer, it uses rubber-mounted sub-frames front and rear to isolate the engine, gearbox, and swingarm unit from the main frame, dramatically reducing vibration felt by the rider. The Norton Commando MK3 rear Isolastic assembly carries the weight of the rear of the engine/gearbox unit and must be kept in proper adjustment for correct handling, rider comfort, and to prevent excessive wear on the frame and engine mounts.

Worn or collapsed rear Isolastic bushings are one of the most common causes of vibration, handling vagueness, and premature wear on Commando motorcycles. Replacing the Norton Commando MK3 rear Isolastic assembly with a complete new kit restores the intended rubber isolation and brings the bike back to correct factory feel.

Key Details:

• Part number: 067117
• Complete rear Isolastic assembly kit for Norton Commando MK3
• Fits 1975, 1976, and 1977 Norton Commando MK3 models
• Restores correct rubber isolation to the rear engine/gearbox mounting
• Essential for proper handling, comfort, and reduced vibration
• Recommended to replace front and rear Isolastic assemblies together for best results

If you are rebuilding or restoring a MK3 Commando, replacing the rear Isolastic is one of the highest-impact maintenance items you can do. Check Isolastic clearances with a dial gauge after fitting per the Norton workshop manual for best results.