As one of the oldest names in mountain biking, the Specialized Stumpjumper certainly carries a lot of history with it into 2017. But while the original model wowed riders with its steel frame and knobbly tyres, the latest version now offers class-leading technologies including its FSR suspension design, the AutoSAG rear shock, tubeless compatible wheels and powerful hydraulic disc brakes. Indeed, mountain biking has come a long way since 1981! For the latest Stumpjumper FSR, Specialized have split the range into three different wheelsizes. The Stumpjumper FSR 27.5 features smaller 27.5” diameter wheels that are both lighter and more responsive than the larger sized options. The result is a more playful and nimble feel on the trail, which is perfectly suited to mountain bikers who love to throw their bike around and get airborne. The Stumpjumper FSR 27.5 still features a 150mm travel fork like the 29” version, but pumps up the rear travel to 150mm. Combined with slacker geometry, the Stumpjumper offers up a balanced ride quality that puts it between the lightweight Camber and the long-travel Enduro.
The latest Stumpjumper FSR frame packs in a range of new technologies that help to increase strength and stiffness where it counts, while also reducing weight where it's not needed. Both front and rear wheels feature BOOST hub spacing, which increases wheel stiffness to offer a more responsive feel on the trail. The chassis itself is offered in both alloy and carbon variants, with the FACT carbon construction lowering weight even further for those riders who want to plush less mass uphill. Both alloy and carbon frames feature the same PF30 bottom bracket design, with press-fit bearings and a larger diameter BB30 crankset for more stiffness when hammering on the pedals. Out back, the FSR suspension linkage employs sealed cartridge bearings throughout, and a small shock extender to drive the rear shock in a smoother and more linear fashion. The result is improved small-bump response and added traction when trying to scramble up steep tech climbs.
Regardless of price, all Stumpjumper FSR 27.5 bikes get modern componentry that includes a slick 1x drivetrain, height-adjustable seatposts and tubeless-compatible tyres.
Drive trainSRAM X0
Gear ratios1x11 Mountain
Frame buildCarbon Mid
Light weight and high tech on a budget