Kit conversione e-bike 48V-72V 3000w velocità max 135mm dropouts 90km/h.
Engine:135mm dropout rear 72v 3000w Electric bike rear hub motor wheel (180°C copper winding+ Best magnet ). single speed gears(freewheel). a set alarm&lock. Sun ringle MTX39 Double-wall alloy rims spoke (2.6mm spokes spoked by park tool).