Frameset:  Sizes: 18" Step Over; Material: Alloy, 6061 TIG welded, hydroformed tubing Dropouts: Decals: Replaceable Der Hanger Fork: DriveTrain Derailleur - Rear: Shimano Altus 8speed Shifter: Shimano Rapidfire Plus Crankset: 46T w/double alloy chainguard Chain: KMC Z8. BB: JIS square taper cartridge Freewheel/Cog: Shimano 11-34T Wheelset Rims: Alloy 36H for disc brake Hubs: Alloy bolt on 17mm nut Spokes: 13G/2.3mm w/brass nipples Tires: 26 x 4.0, with moto-belt anti-puncture protection Components Headset: Threadless, 1 1/8" Brakes: Tektro hydraulic with ebike specific 180mm rotors and semi-metalic pads  Handlebars: Alloy 700mm Grips: Comfort with alloy lock rings Stem: Die-Casting alloy; 31.8mm barbore, ext. 60mm +6d, 4-bolt faceplate Saddle: SuperSoft MTB Seatpost: Alloy; 30.9mm diameter, 400mm length Seatpost Clamp: Alloy QR Pedals: Alloy platform 9/16" Extras Kickstand: Rear mount, adjustable, aluminum alloy Lights: Integrated/system-powered front and rear lights w/brake function Fenders: Full coverage front and rear Tools: 4 pcs: 15mm open/box, 10mm open/box, 5/6mm hex key, cross (Phillips) screwdriver Weight - Bike (Assembled w/battery): 71 lbs Class: Class 2: pedal-assist and/or throttle-assisted, 20 mph max. Rover Compatible: Yes E-Power System Motor: 750W geared Battery: 48V 720W LG 21700 cells Modes: PAS/Thumb throttle Left side , cadence sensor Display: Full color display with 6 levels of assist, anytime throttle and walk mode. Controller: Retrospec 22Amp Charge Time: Approximately 6hrs Watt Hours: 720Wh Range: 720Wh: 50+ Miles