FRAMESET Size: Small (16.5") Material: Beaumont steel with seat tube mounted external battery Dropouts: 2x rear dropout eyelets Fork: Rigid steelWHEELSET Rims: 27.5" double-wall aluminum 36H, for disc brake Hubs: F: Aluminum bolt-on with 17mm axle nuts. 36 hole Spokes: 13G with brass nipples Tires: 27.5x2.4 City Tire E-POWER SYSTEM 36V/350W Motor: 350W rear hub Battery: 360Wh/36V 18650 cells; Charge on or off bike Display: Left mounted LED Charge Time (empty to full): 10.4Ah battery (350 & 500W): 5-6 hours 36V/350W range: Up to 38 miles Charger: 36V/2A Sensor: Cadence Assist Levels: 1-5 PAS, Throttle and walk-modeDRIVETRAIN Derailleur - Rear: 7 speed Shimano Tourney Shifter(s): 7 speed Shimano Tourney Crankset: 3-Piece aluminum w/steel 42T chainrings Chain: KMC 7 speed BB: Sealed cartridge Freewheel/Cog: Shimano 7-speed 14-34T COMPONENTS Headset: 1-1/8” semi-integrated threaded Brakes: Tektro mechanical with 180mm rotors and semi-metalic pads Handlebars: Alloy Dutch Bar Grips: Lock-on comfort grips. Stem: Die-Cast alloy. 25.4mm clamp Saddle: Retrospec Cruising Comfort saddle Seatpost: Aluminum 28.6mm diameter, 350mm length Seatpost Clamp: Aluminum quick release Pedals: PP plateform with non-slip tread.EXTRAS Kickstand: Aluminum chainstay mounted, 40MM bolt pattern Accessories: Front and rear lights (AA battery); rear rack; tool kit Fenders: Full-Coverage Steel Recommended Weight Limit: 350lbs Item Weight: 57.5 lbs (battery included)