Goodbye, car. Hello, Range Boost! Select Trek electric bikes can now be fitted with Range Boost, an option that can double your e-bike's range so you can ride longer, commute farther, and take on bigger adventures. Product details - Go farther without worrying if you'll have enough battery power to get there - One key will give you access to your main battery, Range Boost, and bike lock - The system automatically manages power between batteries, so you don't have to - Compatible with select e-bikes with Removable Integrated Battery (RIB) systems - Expert installation exclusively at your Trek retailer

- BT-E6010 (battery) / SM-BME61 (battery mount) - Consistent performance, minimally affected by weather and temperature - Long life design, greater than 1,000 charge cycles - BT-E6010 features easy mounting and release

The Firebolt Switch Unit control with intuitive operation is ergonomically designed for a MTB. It’s the ultimate in comfort and reliability as you switch between modes while blasting through the trails. - The e-MTB Switch Unit (SW-E8000-L) is ergonomically designed for the specific demands of MTB riding such as riding through tight singletrack and bumpy terrain - Accurate, smooth shifting between power-assist modes regardless of weather or terrain conditions - Switch between Boost, Trail, Eco and Walk settings in a flash during the ride. Shifters incorporate the same design and shifting feel as XT Di2 TECHNICAL SPECIFICATIONS - Four support settings to choose from: Boost, Trail, Eco, Walk - Boost: Complete support for a max boost and expert climbing - choose between high, med, or low level of assist - Trail: Intuitively smooth gradated support through even the most demanding singletracks. Automatically adjusts its level of support based on pedal pressure. Choose between high, med, or low level of assist - Eco: Solid support for those long expeditions - Walk: Assists you when you need to get off the bike and walk it—simple to activate