Specialized continues to rely on the Stumpjumper after 30 years

Even after thirty years, the Stumpjumper doesn't seem to be getting tired. The fully version has been revised again for the coming model year. As in the current year, there is a 26-inch and a 29-inch bike, but the big one will be available as a carbon bike for the first time.

With a completely redesigned frame, the Stumpjumper FSR is now lighter and stiffer than its predecessor. The weight of the frame has been reduced by around 150 grams. The large-dimensioned tubes of the front frame triangle convey robustness and reliability. The top tube and down tube merge into a generously dimensioned bottom bracket area, which houses the "BB30" press-fit bottom bracket. The four-bar rear triangle also speaks a more striking language with its angular tubes. The remote cable of the Vario seatpost is the first cable to be routed internally. This eliminates unsightly scrapes on the top tube.

Small but mighty gadgets
Specialized has designed "The Dangler", an all-mountain chain guide especially for the Stumpjumper. The chain is guided along the chainstay via a short plastic bar. The bar is movable and thus adapts to the chain line. Beautifully integrated into the chainstay guard, the small part weighs just 30 grams.

In collaboration with Fox, Specialized has developed a simple system for adjusting the shock to the rider. Using an additional valve, the rider can adjust the shock to their weight at the touch of a button. To do this, the shock must be filled with a good 50 PSI above the rider's actual weight. The rider then sits on the bike, activates the additional valve and ends up with around 23 percent sag (negative suspension travel). This automatic sag adjustment system saves time for all those riders who do not want to spend a lot of time adjusting the rear suspension. Nothing changes for anyone else. They can still fine-tune their suspension individually as before.

New Stumpi Evo
For the current model year, Specialized also presented an Evo version for various models for the first time. This was a "pimped" version of the standard model. Thanks to the use of different components, the range of use was sometimes more trail-oriented, sometimes more race-oriented.

The Evo line will be expanded next year to include a Stumpjumper Evo 29er. Both the 26-inch and the 29-inch Stumpi feature a new suspension linkage that gives the bikes a lower bottom bracket and a steeper seat and steering angle. In addition to the longer fork, the bikes also have more rear suspension travel. For the "Stumpjumper FSR Evo" this means 150 millimetres of travel at both ends, for the "Stumpjumper FSR Evo 29er" 135 millimetres at the rear and 140 millimetres at the front. However, the 29er Evo will not be available in Europe.

www.specialized.com