Forum bmwbike.com

Could some one tell me what if any motor or transmission parts are interchangeable between the R25 series and R26

Thanks very much

Since 1968 my R25/2 has been equipped with a R26 gear box. I made more than
100,000 km with this bike without any transmission troubles. To ease demounting
and mounting of this gearbox I replaced the 4 fixed "Stehbolzen" from the engine
case by 4 heli coil reenforced removable bolts.

Han Verhagen

Hi Bob

Best is comparing part numbers in the parts catalogues. If the number is the same, then the part is the same and interchangeable. In the case of the gearbox, the models R24 to R25/3 had a lower 1st gear than the R26 to R27.

Best regards,
Mark
Mark Huggett GmbH