Drivetrain

This nice piece replaces your plastic sprocket cover and protects your engine case from a chain derailment or failure. The 3/16" (5mm) thick steel plate is adjustable to accommodate 14, 15 and 16 tooth sprockets. Includes mounting hardware.

This new unit from JNS will protect your cases from the damage caused by a thrown chain, and will also keep your pants, boots or foot safe from your countershaft sprocket.

The case saver portion is laser cut from 0.25" aluminum and then has the 0.19" aluminum countershaft sprocket cover welded to it and the entire unit is powder coated black.

All the mounting hardware is stainless steel with machined aluminum spacers also included.

If you have a 16t front sprocket, mounting modification may be needed to fit. Install the case saver on the bike without the top spacer and bolt. This provides a little extra wiggle room. Add the top spacer and bolt after the bottom bolts are loosely threaded.

Replace your lost or broken stock plastic chain guard with a JNS aluminum one. Laser cut, CNC formed, TIG welded, and powder coated a beautiful satin black. This is a direct replacement for the stock unit.

  Please note that this unit is a bit wider than the stock one and will have to be trimmed if you are running a big fat SuperMoto wheel/tire.

A real Heavy-Duty Chain Guide manufactured from 5mm (3/16") thick 5052 Aluminum. This guide will take a pounding and continue to put that chain right on the sprocket. The rub block is machined from UHMW plastic and can be positioned to fit just about any sprocket available for the DR. These are powder coated black for a great look and additional protection.

Polyurethane drive cushions for the DR. Polyurethane has a higher abrasion, cut, and tear resistance than rubber as well as much better resistance to chemical breakdown. This will offer longer life and better damping when compared to the stock rubber cushions.

The stock sprocket retainer will rub the chain when it is used with 13 and 14 tooth sprockets.