2018 Specialized Bicycles Stumpjumper Comp Alloy 29 S
Build
700C/29 in × 2.3 in
Insights
Somewhat upright stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 617mm |
| Reach | 389mm |
| Stack to Reach Ratio | 1.59:1 |
| Seat Tube Length, Unknown | 396mm |
| Top Tube Length, Effective/Horizontal Center | 551mm |
| Top Tube Slope | 25.4deg |
| Head Tube Angle | 67.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 125mm |
| Bottom Bracket Drop | 36mm |
| Bottom Bracket Height | 333.4mm |
| Chainstay Length Horizontal | 437mm |
| Front-Center | 679mm |
| Front-Center Horizontal | 680mm |
| Wheelbase | 1115mm |
| Fork Offset/Rake | 46mm |
| Fork Length, Unknown | 551mm |
| Trail | 103.2mm very high |
| Mechanical Trail | 95.4mm |
| Wheel Flop | 36.5mm |
| Standover Height | 750mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 139.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 163.4mm |
Comp Alloy 29 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 738.8mm |
| Bike Length with Tires | 1853.8mm |
| Crank Length | 170mm |
| Handlebar Width | 780mm |
| Stem Length | 45mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 150mm |
| Rear Travel | 135mm |
| Suspension Sag | 20% |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://www.specialized.com/us/en/stumpjumper-comp-alloy-29-6fattie/p/129073?color=240010-129073