Siebenrock Big Brake Rotor kit 320mm with adapter, R100GS & PD, R80GS Kalahari
Siebenrock High Performance Brake Disc Upgrade Kit 320mm. Fits R80GS Kalahari and 100GS, R100GSPD models. For R80G/S models see part number 3410290.
The original caliper is reused with an adapter that moves it further away from the fork leg to accomodate the larger brake rotor.
The larger rotor diameter improves braking performance considerably. The stock brake rotor is simply too small, especially considering the 21" front wheel used on these models. As a result these models are known for having sub-par front brake performance.
This is a bolt on kit complete kit. The original metal brake line which exits the caliper and attaches at the brake hose can be reshaped to be used with this kit, but it can still be a stretch to get it to fit.
We highly recommend the optional custom Spiegler stainless braided brake hose made exclusively for us which eliminates the metal line for a true plug and play installation. Select the brake line in the pull down menu above.