The Carrera Vengeance-E Mens Electric Mountain Bike (M Frame - 18") pairs smooth assistance with trail-ready durable performance. This electric bike is powered by a Suntour rear-hub motor (up to 15.5mph) and a 317Wh removable battery (up to 40 miles of assist). A 100mm Suntour fork and 27.5″ tyres smooth trails, while 8-speed Shimano gears and Tektro mechanical disc brakes give confident control on any terrain. Buy your electric bike at Halfords, the UK's largest cycling retailer.