Turn any bike into an E-bike with a Swytch Kit! In store purchase only The Go Kits give you 3 battery power options. They have velcro attachment straps and the kits exclude a display. This means it will default to assist level 3 and you can't change it. A display and a bottle cage mount can be added if desired. Whats Included in the GO Kits: 1) Battery Power Pack The GO power pack couldn’t be easier to fit, simply strap it anywhere on your frame, and plug in the single cable 2) Pedal SensorDetects as you pedal and sends a signal to the control system, triggering pedal assistance 3) 250W Geared Hub Motor Front WheelMade to perfectly fit your bike, and provides 40nm of torque to boost your ride 4) ChargerTops up your Power Pack in as a little as an hour, to get you back on the ride in no time 5) Manual Instructions 6) One Year Warranty GO Mount sold separately Displays sold separately here Specifications Go: 25+Km range, 32km/hr top speed, 2.5hr charging time, 4.6lbs in weight. Go+: 50+km range, 32km/hr top speed, 4hr charging time, 5.5lbs in weight. Go++: 75+km range, 32km/hr top speed, 5hr charging time, 5.7lbs in weight.