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 |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Specialized Stumpjumper Alloy Mountain Bike 2023 - Trail Full Suspension MTB
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