40 Years of Siebenrock – A Heartfelt Thank You!

 

Since 1985, the name Siebenrock has stood for quality, technical expertise, and genuine passion for classic BMW motorcycles.
Our success is built on continuous development, solid engineering knowledge,

and the ambition to create products that impress with functionality and durability.

  

A major milestone – and one we’d love to celebrate with you!

 

From July 4 to 16, 2025, enjoy a special anniversary discount on selected Siebenrock items in our online shop – it’s worth a look!

 

Or come see us in person at the BMW Motorrad Days in Garmisch-Partenkirchen, July 4–6, 2025.

Visit our stand and receive an exclusive anniversary gift – a little surprise from us to you!

 

 Your Siebenrock Team

 

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Repair kit Brake master cylinder 14mm

BMW /6, /7 models from 9/1975 on

3431926_1
€109.00

Prices incl. VAT, plus shipping costs

Ready to ship today, Delivery time appr. 2-4 workdays within Germany

  • part no.: 3431926
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Description
Master cylinder kit for single-disc models - includes, in addition to the 14 mm piston, the seal,... more
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Repair kit Brake master cylinder 14mm
Master cylinder kit for single-disc models - includes, in addition to the 14 mm piston, the seal, circlip and protective cap.

Repairing instead of replacing is the motto of this clever repair solution for the master cylinder of the two-valve Boxer: The complete "inner workings" are replaced in just one step and the brake is tight, smooth-running and safe again.

TIP
You can find the specifications for your piston diameter on the underside of the master brake cylinder.

ATTENTION:
Only for repair in a specialist workshop!

Price for set.

Spare part for the classic BMW two-valve Boxer models
R 75/6, R 90/, R 60/7, R 75/7, R 80/7, R 100/7 from 9/1975 on with one brake disc.

Compare 34 31 1 234 926 / 34311234926

Information on product safety
Fits for BMW R2V: R 75/6, R 90/6, R 60/7, R 75/7, R 80 up to 84, R 100 up to 84
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