[EU/UK Direct] CSC SW900 48V 1000W Ebike Conversion Kit, 55km/h Ultimate Power Hub Motor Wheel Fits Marlin 4, Rockrider1 Applicable Bike ModelFrame Requirements About the Frame For Front Wheel Installation Requires a standard 100mm Front Dropout width Compatible with standard heavy duty rigid or suspension forks For Rear Wheel Installation Requires a 135 mm 142 mm Rear Dropout width AND must use a standard 6 7 speed threaded freewheel NOT compatible with cassette spline hubs 26 27 5 29 700C Bikes Compatible Τrek Marlin 4 Note Marlin 5 6 and 7 use cαssettes and are only compatible if you choose the Front Wheel version Decαthlon Rockrider Rockrider ST 50 Rockrider ST 100 Note Higher ST models use cαssettes Decαthlon Riverside 120 Note Riverside 500 uses a cαssette and mu… $379.99Banggood.comDelivery: in USA ReportBuy!