Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy remove the battery without tools and lets you mount a water bottle cage  It's equipped with an external charging port for easy charging on or off the bike  Made with the same exclusive frame tech as Remedy and Slash, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness and Active Braking Pivot (ABP)   Trek Rail 5 E-Mountain Bike Highlights Alpha Platinum Aluminium frame with removable of Integrated Battery (RIB) Internal Routing, Magnesium Rocker Link, Motor Armour Mono Link, Boost148 Axle's Rockshox 35 Gold RL DebonAir 160mm of e-MTB optimised Suspension, Boost 110 x 15mm Maxle Stealth  Rock Shox Deluxe RL Rear Shock Sram SX Eagle 12-Speed Groupset with single click shifting Alex MD35 Tubeless Ready 35mm Wide 32H Wheelset Bosch Performance Line CX 250Watt / 500Wh Battery  Bosch Purion Handlebar Display Unit