Evolution has brought us to this point: a 29er hybrid mountain bike, powered by Bosch's fourth-generation drive system and Shimano's 12-speed XT and SLX components. The Reaction Hybrid EXC 29 is the latest iteration of our constant quest to build smooth, fast, comfortable and affordable off-roaders. Designed around our brand-new Modular Battery System, it houses the Bosch power unit entirely within the stiff, strong down tube for a sleek appearance and unparalleled usability. Not only is it possible to charge the battery without removing it from the frame, but the new design has enabled the option of an even higher capacity unit for extended range. Revised geometry works with the Suntour XCR34 Boost fork and extra-wide Schwalbe 2.6in tyres to deliver safe, predictable handling that's lively when you want it, and confidence inspiring when you need it. The uncannily smooth and seamless power delivery of Bosch's fourth-generation CX drive unit is transferred to the rear wheel via Shimano's SLX and XT 12-speed drivetrain. Known for its matchless reliability and smooth shifting, the new Shimano 12-speed system also offers an unmatched gear range to make even the most daunting of climbs easier to ride. And, of course, we included powerful Shimano four-piston hydraulic disc brakes at the front, to ensure that you're always in full control. With a trapeze frame option and a wide range of sizes, there's a Reaction Hybrid EXC 29 to suit every rider.