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Description

Master Cylinder Repair Kit,13mm

Magura repair kit to repair your Front Brake Master Cylinder. Providing a firm, responsive, and confidence inspiring braking experience. Fits BMW Airhead models with 13mm master cylinder; the size is cast into the body of the master cylinder on the underside.

Application: R Airheads and K Models
Make/Model: R80, R100, K75, K100,
Model Years: 1978 - 1996

BMW part # 32 72 2 302 356

32 72 2 302 356
32722302356

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Master cylinder rebuild

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Randal Magee (Leland Mississippi) | June 13th, 2026

My 34 year old R100GS brake master cylinder started leaking, so I turned to Boxer2Valve to provide the parts to fix it. I also received good advice about honing the cylinder. The repair was flawless and works as designed with no leaks.