Description Naraku Crankshaft for Yamaha Aerox / BWS 100cc 2T Bearings sizes: 14x18x17mm Gudgeon pins diameter: 14 mm Crankshafts stroke: 47.6 mm thread rotor side: M12x1,25 right-hand thread thread drive side: M12x1,25 right-hand thread diameter crankwebs: 81.6 mm pivot length rotor side: 68.5 mm pivot length drive side: 73.6 mm width crankwebs: 37.9 mm diameter bearing seat rotor side: 24.9 mm diameter bearing seat drive side: 25 mm diameter oil seal seat rotor side: 19.9 mm diameter oil seal seat drive side: 21.9 mm width bearing seat rotor side: 14.5 mm width bearing seat drive side: 13.7 mm width oil seal seat rotor side: 8.5 mm width oil seal seat drive side: 10 mm full circle crankshaft: rotary valve crankshaft: crankcase has to be milled: engine casing has to be modified: diameter variator pivot: 15.7 mm variator pivot type: toothed can be used with genuine variator: yes Connecting rods length connecting rod: 90 mm thickness connecting rod: 6.5 mm diameter small end connecting rod eye: 18 mm lubricating hole at small end bearing: no diameter crankpin: 18 mm lubricating hole at crankpin bearing: slot crankpin shims: yes
