Secure the rear sprocket with a nut set that exactly matches the sprocket carrier, threaded studs, and mounting configuration
Sprocket nuts hold the rear sprocket on the sprocket carrier and must reliably withstand the drive torque and varying loads. The correct thread size, fit, material type, and locking method are therefore essential. A decorative matching nut is not automatically technically suitable.
In this collection, you will find sprocket nuts for various CNC Racing rear sprocket carriers. Selected Quick-Change sets consist of six nuts and are offered in black, red, or gold. Additionally, Titanium variants are available for certain systems.
Always check the article numbers of both the carrier and the nut set. Some nuts fit only a specific CNC Racing flange and are not replacements for the original factory nuts.
The thread diameter and pitch must exactly match the threaded studs of the sprocket carrier. A commonly used size in selected CNC Racing systems is M8x1.25, but this does not apply to every motorcycle or carrier.
Never try to force a nut onto a mismatched thread. Damage to the threaded stud or carrier can lead to insufficient clamping force.
Anodized Aluminium nuts combine low weight with various color options. They are designed for the specific loads and threaded studs of the corresponding CNC Racing system.
Titanium versions offer a different combination of material strength, weight, and appearance. When using Titanium, always apply the specified torque and any assembly paste prescribed for the particular set.
Preferably use one complete, technically identical nut set. Mixing different materials, shapes, or contact surfaces can lead to uneven clamping of the rear sprocket.
Check whether washers or conical contact surfaces are part of the nut or must be mounted separately. Do not omit any prescribed parts.
Place the rear sprocket flat on the carrier and initially tighten all nuts by hand. Then build up the clamping force crosswise and in multiple steps.
Use a calibrated torque wrench and adhere to the product-specific tightening torque. The tightening torque of an original steel nut should not automatically be used for an Aluminium aftermarket nut.
Use only the prescribed thread locking, lock nuts, or other securing methods. Too much or an unsuitable locking agent can complicate disassembly or affect the tightening torque.
Check the nuts after the first ride and periodically thereafter. Also inspect them during every chain, tire, or sprocket change for damaged wrench flats, thread wear, and deformation.
