Trail bikes 2023 up to 3400 euros: The Specialized Stumpjumper Comp Alloy on test

On our test track, the Specialized makes no secret of its preferences: It wants to go downhill, and fast. Even in size S3, which is roughly equivalent to an M, the
Stumpjumper is smooth and literally soaks up rough terrain with its plush suspension - and the bike remains surprisingly quiet. Handling with a lot of pressure on the front wheel is direct and intuitive, while the coarse-tread tyres offer excellent grip. The Stumpi easily goes into flight mode thanks to its good pop. The rider only has to work hard to negotiate tight bends. This is due to the combination of 445 millimetre chainstays and the 65 degree steering angle. With the flip chip in the high position, however, the Stumpjumper could still be made a little more manoeuvrable - victory on points in the downhill classification.

Specialised Stumpjumper Comp Alloy: One of the best climbers

We were pleasantly surprised when we turned onto the climb: together with Canyon and Rocky Mountain, the Specialized is one of the best climbers, with only the high weight slowing it down. The seat is compact but comfortable. Again, there's a lot of pressure on the handlebars, which keeps the front wheel glued to the ground even on steep climbs. The rear suspension is almost free of drive influences - no annoying pitching, but plenty of traction and the finest response.

And is there anything to complain about? Unfortunately, yes. As is typical for Specialized, the bike is rather meagrely equipped. The associated high weight puts a damper on climbing ambitions. Sram's NX groupset shifts sluggishly and reacts slowly to shifting commands. The 11-50 cassette also only offers 454 per cent gear range - too little for long trail tours. Despite four pistons at the front and rear and a 200 mm disc at the front, the inexpensive Sram G2-R stoppers only slow down moderately. And yet: Overall, the Specialized is one of the most coherent bikes in this comparison.

Conclusion on the Specialized Stumpjumper Comp Alloy by Stefan Frey, BIKE editor

If you want to work your way up the climbs to have maximum fun on the descents, the Specialized is the bike for you. Powerful suspension, convincing handling, but unfortunately sparsely equipped.

Technical data and notes on the Specialized Stumpjumper Comp Alloy

Manufacturer information

• Price: 3150 Euro >> available here
• Available from specialised dealers
• Frame material: Aluminium
• Frame size: S1, S2,S3, S4, S5, S6 (tested size S3, 40 cm)

Measured values

• Weight without pedals: 14.84 kg
• Frame weight without damper: 3200 g
• Weight of wheels: 5457 g
• Handlebar width: 780 mm

Equipment

• ForkFox 34 Float Rhythm Fit Grip
• DamperFox Float Performance
• Front/rear suspension travel: 144/137 mm
• Crank handleSram NX Eagle
• CircuitSram NX Eagle 1 x 12
• Translation / bandwidth: 30; 11-50 / 454 %
• Brake system / Disc (front / rear)Sram G2 R / 200 mm / 180 mm
• Telescopic support / stroke / ØX-Fusion Manic / 170 mm / 34.9 mm
• ImpellersSpecialized 29; Specialized hubs
• TyresSpecialized Butcher Grid; T9 29 x 2.30; Specialized Purgatory Grid; T7 29 x 2.30
• Ease of maintenance: medium

BIKE test rating¹: very good - 184.75 out of 250 points

Further information on the trail bike can be found in the graphics

• The BIKE judgement reflects the laboratory measurements (BIKE laboratory measurement) and the subjective impression of the test riders. The BIKE judgement is independent of price. BIKE judgements: super (250-205 P.), very good (204.75-180 P.), good (179.75-155 P.), satisfactory (154.75-130 P.), with weaknesses (129.75-105 P.), unsatisfactory (104.75-0 P.).
• ²Price may be subject to additional costs for packaging, dispatch and coordination.