Crankshaft Doppler Endurance Yamaha Bw's / Slider

Racing crankshaft Endurance Minarelli vertical Very high quality racing full circle shaft from Doppler, for Minarelli vertical engines, at a exceptional value for money. Suitable for many different 50cc motorbikes with vertical Minarelli engine like Yamaha Slider / BW's ...etc. Full-circle crankshafts increase the pre-compression in the crankcase, which leads to a better filling and increased engine power. Also, the engine runs smoother, with reduced imbalance and less vibration. The counterbalance weights are made of aluminum, the connecting rod is forged, the crankshaft has 18mm crankpin. Comes with reinforced 10x14x13mm piston pin bearing. Suitable for engines up to 15,000 rpm. The crankshaft can be used as a replacement for the original crankshaft or tuned setups with 50cc or 70cc racing cylinders. The Doppler Endurance should be installed with new reinforced bearings; these are not included and must be ordered separately. If the crankshaft does not meet your expectations, check out our wide selection of crankshafts (OEM quality and reinforced). Crankshaft Doppler Endurance Minarelli vertical Full circle crankshaft Small end bearing: 10x14x13 mm