Specialized Stumpjumper 15 Alloy
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Specialized
Specialized

Specialized Stumpjumper 15 Alloy

4.6

Best versatile trail bike for riders seeking durability and performance.

This bike effectively kills the compromise between big-hit capability and nimble handling. By pairing a coil-sprung rear end with a mullet wheel setup, it offers the plush, planted feel of a heavy-duty rig without the sluggishness usually found in that category. It’s a rare, highly adjustable machine that feels just as comfortable on technical climbs as it does on rowdy descents.

$4099.99

In stock

at

Sierra Cyclesmith

Frame Material Aluminum
Wheel Size Inches 29, 27.5
29
29, 27.5
Front Suspension Travel Mm 160
150
160
Intended Use Trail

Who it's for

  • Trail riders seeking high-performance suspension without the weight of a coil
  • Budget-conscious mountain bikers who value frame durability over marginal weight savings
  • Technical riders who want a customizable bike for diverse terrain

Who should skip it

  • Weight-conscious climbers who prioritize efficiency on steep, technical ascents
  • Value-driven shoppers looking for the best component-to-dollar ratio
  • Performance-oriented enthusiasts who may feel the need for immediate upgrades

Performance breakdown

Technical Trail Agility

Mullet wheel configuration makes tight, technical switchbacks feel remarkably intuitive and quick.

Excellent

Suspension Compliance

Ride Dynamics tuning provides a plush, bump-eating feel on aggressive, rocky descents.

Excellent

Frame Versatility

Adjustable geometry allows riders to fine-tune handling for specific trail conditions.

Excellent

Storage Integration

SWAT door eliminates the need for bulky packs on shorter trail rides.

Excellent

Chassis Durability

M5 alloy construction offers a robust, reliable platform for hard-charging riders.

Excellent

Braking Confidence

Four-piston hydraulic discs provide consistent, powerful stopping power in all conditions.

Excellent

Key Specs

Frame Material

M5 Alloy

Wheel Size

29-inch front, 27.5-inch rear

Suspension Type

Full Suspension

Front Suspension Travel

160 mm

Rear Suspension Travel

145 mm

Number of Speeds

12

Brake Type

Hydraulic Disc

Dropper Post Included

Yes

Tubeless Ready Wheels

Yes

Intended Use

Trail

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Specialized Stumpjumper 15 Alloy

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Sierra Cyclesmith
Sierra Cyclesmith
In stock
$4099.99
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