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

 

While supplies last.

 

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Gear wheel 5th gear
With "X" for intermediate shaft

BMW 2-valve Boxer models

Artikelbild
€148.70

Prices incl. VAT, plus shipping costs

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

  • part no.: 2321997
Description Evaluations 0
Description
For 2 valve boxer models with 5-speed gearbox with "X" ** Standard Gearing ratio. We also offer... more
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Gear wheel 5th gear
With "X" for intermediate shaft
For 2 valve boxer models with 5-speed gearbox with "X" **

Standard Gearing ratio.
We also offer a longer 5th gear.

** Starting 4 / 1982, gearwheels marked "X" with 17,5 Degree gear teeth were used in the gearboxes. Previously, the teeth were at a 15 degree angle. It's important to check what version the transmission gears and shafts are. Since there are differences, the dimensions of these are to be rechecked prior to installation. 15 degree and 17,5 degree gearwheels are not compatible.

This Part is not available from BMW. Finely-grounded. Honed version for quiet operation. Installation only by skilled personnel using special tools.

Made in Germany - top quality.
Price per piece.

Spare part for the classic BMW 2v Boxer models
R 80/7, R 80RT, R 100/7, R 100RS, R 100RT, R 100CS
R 45, R 65, R 65LS, R 65GS
R 80G/S, R 80ST
Paralever models R 80GS, R 100GS, R 100GS PD, R 80GS Basic, R 80R R 100R, R 100R Mystic
Monolever models R 65, R 65RT, R 80, R 80RT, R 100RS, R 100RT.

Information on product safety
Fits for BMW R2V: R 80 up to 84, R 100 up to 84, R 45 up to 84, R 65 up to 84, R 65 Mono from 85 on, R 80 Mono from 85 on, R 100 RS/RT Mono from 87 on, R 65GS 87-92, R 80 G/S,ST 80-87, R 80GS 87-96, R 100GS 87-96, R 80R 91-95, R 100R 91-95
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