Boxer crankshaft balancing
R100 and R80 engines share the same crankshaft and connecting rod, the pistons however differ by 140g. We weight all of our connecting rods, pistons, gudgeon pins, circlips to and accuracy of half a gram, differentiate between rotating and oscillating masses and balance the crankshaft dynamically.
Your engine will thank you for low vibrations during operation and enhanced lifespan.
Depending on the piston weight, heavy metal plugs may have to be inserted, item no. 113012!
e.g. for 860 ccm 2 plugs!
Please send us your crankshaft first.
4 pc
You need 4pc for one engine.
Please send us your crankshaft in exchange.
Please send us your crankshaft first.
4 pc
Siebenrock Replacement Kit
for all R100 models from September 1980, now with 4 pc. stainless steel pushrod tubes (no. 112001) !!!