Specialized Stumpjumper Alloy Mountain Bike 2023 - Trail Full Suspension MTB
The Stumpjumper Alloy is engineered to redefine trail riding, boasting a no-fuss SRAM SX 12-speed groupset for unrivaled performance. Its progressive geometry, Rider-First Engineered™ frame, and 130mm of travel ensure a stable, responsive, and comfortable ride on any trail.
Key Features:
- Alloy Chassis: Sturdy yet lightweight frame with asymmetrical design and 29 trail geometry.
- Rockshox 35 Silver Fork: Smooth 140mm of travel with rebound adjust and turnkey lockout.
- X-Fusion O2 Pro RL Rear Shock: Responsive suspension tune with rebound adjust and lockout.
- SRAM SX Eagle Drivetrain: Precise shifting and wide gear range for tackling varied terrain.
- Tektro Gemini Comp Brakes: Hydraulic disc brakes for reliable stopping power in all conditions.
- 29-inch Wheels: Stable and capable on rough terrain, paired with grippy Butcher and Purgatory tyres.
- Progressive Geometry: Long, low, and slack design for stability and improved handling.
- Available with 0%APR Finance
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel |
| Fork | RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel |
| Rear Shock | X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm |
| Stem | Alloy Trail Stem, 35mm bar bore |
| Bars | Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width |
| Front Brake | Tektro Gemini Comp, hydraulic disc, resin pad, 200mm |
| Rear Brake | Tektro Gemini Comp, hydraulic disc, resin pad, 180mm |
| Rear Mech | SRAM SX Eagle, 12-speed |
| Shifters | SRAM SX Eagle, trigger, 12-speed |
| Speed | 12 |
| Front Tyre | Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3" |
| Rear Tyre | Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3" |
| Seat Post | TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm |
| Saddle | Body Geometry Bridge Saddle, steel rails |
| Chainset | SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm. 30T |
| Bottom Bracket | SRAM Powerspline |
| Chain | SRAM SX Eagle, 12-speed |
| Cassette | SRAM PG-1210 Eagle, 11-50t |
| Pedals | Resin Platform |
Specialized Stumpjumper Size Chart
|
Size |
Height (cm) |
Height (inches) |
|
S1 (XS) |
150 – 160 |
4’11” – 5’3” |
|
S2 (S) |
157 – 173 |
5’2” – 5’8” |
|
S3 (M) |
165 – 180 |
5’5” – 5’11” |
|
S4 (L) |
173 – 188 |
5’8” – 6’2” |
|
S5 (XL) |
178 – 193 |
5’10” – 6’4” |
|
S6 (XXL) |
188 - 203 |
6’2” – 6’3” |
Find your S Size
Determining your S-Size is easy. If you rode a Medium before, then S-3 will be your equivalent size. But if you want a more nimble ride, you should drop down to an S2. Want a bike that’s more stable at speed? Bump up to an S4. Following are examples of three riders, all 5’8” (1.73m), who chose three different sizes.
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