Bike-on-Bike
Insights
Somewhat upright stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Somewhat upright stack and reach vs trend of full-suspension trail mtb bikes
Design deviates from other sizes of Specialized Bicycles Stumpjumper 15
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Geometry
Stack | 617mm | 618mm +1mm |
Reach | 417mm | 425mm +8mm |
Stack to Reach Ratio | 1.48:1 | 1.45:1 |
Seat Tube Length, Unknown | 430mm | 385mm -45mm |
Top Tube Length, Effective/Horizontal Center | 582mm | 573mm -9mm |
Top Tube Slope | 20.8deg | 25.4deg +4.6deg |
Head Tube Angle | 67.5deg | 64.5deg -3deg |
Seat Tube Angle | 74deg | 77deg +3deg |
Head Tube Length | 145mm | 100mm -45mm |
Bottom Bracket Drop | 36mm | 38mm +2mm |
Bottom Bracket Height | 333.4mm | 331.4mm -2mm |
Chainstay Length | — | 432mm |
Chainstay Length Horizontal | 437mm | 430.3mm -6.7mm |
Front-Center | 706.9mm | 751mm +44.1mm |
Front-Center Horizontal | 708mm | 750.7mm +42.7mm |
Wheelbase | 1143mm | 1181mm +38mm |
Fork Offset/Rake | 46mm | 44.3mm -1.7mm |
Fork Length, Unknown | 551mm | 561mm +10mm |
Trail | 103.2mm very high | 127.2mm +24mm very high |
Mechanical Trail | 95.4mm | 114.8mm +19.4mm |
Wheel Flop | 36.5mm | 49.4mm +12.9mm |
Standover Height | 757mm | 751mm -6mm |
Tire to Pedal Spindle | 167.5mm 170 mm cranks | 216.6mm +49.1mm 165 mm cranks |
Pedal Spindle to Ground Clearance | 163.4mm 170 mm cranks | 166.4mm +3mm 165 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.3in | 2.3in +0in |
Tire Outer Diameter | 738.8mm | 738.8mm +0mm |
Bike Length with Tires | 1881.8mm | 1919.8mm +38mm |
Crank Length | 170mm | 165mm -5mm |
Handlebar Width | 780mm | 780mm +0mm |
Stem Length | 60mm | 35mm -25mm |
| Suspension Type | Full suspension | Full suspension |
| Bar Type | Flat Bar | Flat Bar |
| Fork Travel | 150mm | 150mm |
| Rear Travel | 135mm | 145mm |
| Suspension Sag | 20% | Unknown |
| Frame Material | Aluminum | Unknown |
| Fork Material | Aluminum | Unknown |
| Brake Type | Disc | Unknown |
Meta
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| Source | https://www.specialized.com/us/en/stumpjumper-comp-alloy-29-6fattie/p/129073?color=240010-129073 | https://www.specialized.com/us/en/s-works-stumpjumper-15/p/4221406?color=5366727-4221406&searchText=93325-0005 |
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