Description
The X-Range Gearbox Provides A Redesigned Road Gear For A More Useful And Smoother Gear Rating And A Greater Range | User Replaceable Aaa Lithium Battery (Over 400 Hours Of Battery Life) | Compatible With 135 Mm And 142 Mm Rear Spacing | Waterproof (Ipx7 Waterproof Up To 1 Metre For 30 Minutes)