Trek Bosch Range Boost
Range Boost seamlessly attaches an extra 500Wh battery to compatible Trek electric bikes for up to twice the distance and time between charges. It’s ideal for riders who want to ride longer, commute farther, and adventure bigger.
this option is available for most of the Allant series bikes
Range Boost adds extra for pulling a trailer or cold weather use
Range boost adds extra distance in cold weather riding situations or when using your e-bike as a tow vehicle , cold weather reduces the effective range on a lithium ion battery , having range boost keeps those big rides an option .