35 years of Siebenrock – their success story
The classic BMW boxer is legend, the scene more alive than ever. Jochen Siebenrock is one of the dedicated enthusiasts, whose work contribute a great deal to this development. For more than 35 years now, their company founder has been recognized as a BMW specialist and passionate developer, who lives the fascination of two-valve boxers and gladly passes it on. Their technically improved new editions of sought-after accessories bear just as much of his handwriting as the many innovative in-house developments. Both have hit the nerve of BMW drivers since the beginning of the 90s and are constantly changing the market. Today Siebenrock is an established premium brand which is an integral part of the worldwide classic boxer community. Motorworks are suppliers of Siebenrock products.Â
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GEA22889-1
Gear wheel long 5th gear - Siebenrock 15 degree, without 'X', for models built before 04/1982 Model fitmentGood stock£159.50 £132.92 -
GEA22993-1
Gear wheel long 5th gear - Siebenrock 17.5 degree, with 'X', for models built after 04/1982 Model fitmentGood stock£159.50 £132.92