2021 Specialized Bicycles Stumpjumper Comp Alloy (High BB)
- Category
- Full-suspension Trail MTB
- Design
- Swept Back Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 140mm fork travel, 130mm rear travel
- Features
- Disc brake
Geometry
S1 | S2 | S3 | S4 | S5 | S6 | |
Stack | 614mm | 609mm | 618mm | 627mm | 640mm | 644mm |
Reach | 416mm | 435mm | 455mm | 480mm | 505mm | 535mm |
Stack to Reach Ratio | 1.48:1 | 1.4:1 | 1.36:1 | 1.31:1 | 1.27:1 | 1.2:1 |
Seat Tube Length, Unknown | 385mm | 385mm | 405mm | 425mm | 445mm | 465mm |
Top Tube Length, Effective/Horizontal Center | 545mm | 563mm | 586mm | 615mm | 643mm | 676mm |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Effective Seat Tube Angle, Unknown | 78.2deg | 78.2deg | 77.9deg | 77.7deg | 77.5deg | 77.3deg |
Head Tube Length | 100mm | 100mm | 110mm | 120mm | 130mm | 140mm |
Bottom Bracket Drop | 40mm | 35mm | 35mm | 35mm | 35mm | 35mm |
Bottom Bracket Height | 329.4mm | 334.4mm | 334.4mm | 334.4mm | 334.4mm | 334.4mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm | 450mm | 450mm |
Chainstay Length Horizontal | 438.2mm | 438.6mm | 438.6mm | 438.6mm | 448.6mm | 448.6mm |
Front-Center | 726mm | 746mm | 770mm | 799mm | 828mm | 863mm |
Front-Center Horizontal | 725.8mm | 745.4mm | 769.4mm | 798.4mm | 827.4mm | 862.4mm |
Wheelbase | 1164mm | 1184mm | 1208mm | 1237mm | 1276mm | 1311mm |
Fork Offset/Rake | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm |
Fork Length, Unknown | 550mm | 550mm | 550mm | 550mm | 550mm | 550mm |
Trail | 120mm very high | 120mm very high | 120mm very high | 120mm very high | 120mm very high | 120mm very high |
Mechanical Trail | 109.2mm | 109.2mm | 109.2mm | 109.2mm | 109.2mm | 109.2mm |
Wheel Flop | 45.3mm | 45.3mm | 45.3mm | 45.3mm | 45.3mm | 45.3mm |
Standover Height | 742mm | 742mm | 750mm | 753mm | 777mm | 784mm |
Tire to Pedal Spindle | 186.6mm 170 mm cranks | 206.6mm 170 mm cranks | 230.6mm 170 mm cranks | 259.6mm 170 mm cranks | 288.6mm 170 mm cranks | 323.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 159.4mm 170 mm cranks | 164.4mm 170 mm cranks | 164.4mm 170 mm cranks | 164.4mm 170 mm cranks | 164.4mm 170 mm cranks | 164.4mm 170 mm cranks |
Comp Alloy (High BB) Build
S1 | S2 | S3 | S4 | S5 | S6 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1902.8mm | 1922.8mm | 1946.8mm | 1975.8mm | 2014.8mm | 2049.8mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm | 780mm | 780mm |
Stem Length | 40mm | 40mm | 50mm | 50mm | 50mm | 50mm |
Published Sizing Recommendations
Height | 150 cm to 160 cm | 157 cm to 173 cm | 165 cm to 180 cm | 173 cm to 188 cm | 178 cm to 193 cm | 188 cm to 203 cm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Full-suspension Trail MTBSource:https://www.specialized.com/us/en/stumpjumper-comp-alloy/p/199785?color=320379-199785