SSP-G QMB139 Stroker Crankshaft 250W NIU OEM Parts are the

NIU OEM Parts are the original parts installed when your NIU was new

Direct OEM Replacement: Compatible with Razor Part No

Length (End to Bend): 9 3/8"

Black full-zip hoodie

Dimensions: 15

SSP-G QMB139 Stroker Crankshaft 250W NIU OEM Parts are the44mm Stroker Crankshaft Assembly for 50cc 4 stroke QMB139 engines. Overall Length: 247mm Thread Size (tapered side): M10x1. 25 Thread Size (spline side): M12x1. 25 Bearing Outer Diameter (tapered side): 42mm Bearing Outer Diameter (spline side): 47mm Number of Splines: 26 Connecting Rod Inner Diameter: 13mm Number of Teeth (oil pump drive gear): 16 (use with 33t oil pump) QMB139 50cc 49cc This product is not intended for use on public roads or land.