Ride Farther With Confidence This strap offers peace of mind to keep your Range Extender in place in the bottle cage. For best fit, pair with the Bontrager Side Load cage Product details - Designed for Fuel EXe 29 2023 - For best results, pair with Bontrager Side Load cages (stock on the Fuel EXe) - No additional hardware needed - Refer to Service Manual for assembly instructions and service - Range Extender battery and charge cable are required and sold separately