When you need to blend ruggedness efficiency & down right nimbleness into one trail bike its pretty damn hard to beat the confident construction of an alloy frame like the Stumpjumper Comp Alloy 650b. It features an M5 alloy construction thats lightweight durable & plenty stiff & compliant while SRAMs most durable one-by components have been h&-selected to ensure that you get the most performance over rugged terrain possible. And when you factor in our proprietary Rx Trail Tune at the shock plus an aggressive trail-eating geometry that features absurdly short chainstays a roomy top tube a low bottom bracket & a slacked out front end you get a nimble trail bike that you can be confident in season after season.> M5 alloy Trail Chassis with Stumpjumper FSR rear end blends durability stiffness & light weight while 150mm of travel Trail Geometry provide more than capable handling.> A Rock Shox Reba RL fork handles suspension up front with ease soaking up bumpy terrain with 150mm of plush travel.> SRAMs 11-speed GX groupset features a wide gear range that delivers climbing & descending efficiency in spades. On top of this the one-by setup is notorious for being next to impossible to drop a chain with plus it provides a significant weight savings in comparison to a standard two-by setup.