Corresponds to Yamaha original number 2U2-11400-00
High quality crankshaft final checked and fine calibrated (aligned) in Sweden.
Alignment, (balance between the halves, picture 3 ): max run out = <0,03/side.
In the weight ratio very well balanced crankshaft for optimal function and very little vibration, especially when used with NTS pistons.
Supplied complete with needle bearing for piston pin.
Technical data:
Needle bearing: 12x15x16(for 12mm piston pin) (13684) Included
Cone for flywheel: Taper 1:6 (input diameter ~13,5mm)
Thread flywheel side: M12x1,25
Thread transmission side: M12x1
Cross key, flywheel: 3×5 (14940)not included
Stroke length: 40mm