2008 Specialized Bicycles Stumpjumper Base 18
Build
26 in × 2 in
Insights
Very aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 569.2mm |
| Reach | 424.4mm |
| Stack to Reach Ratio | 1.34:1 |
| Seat Tube Length, C-T | 457mm |
| Top Tube Length, Effective/Horizontal Center | 600mm |
| Top Tube Length, Actual C-C | 575mm |
| Top Tube Slope | 13.3deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 26.3mm |
| Bottom Bracket Height | 304mm |
| Chainstay Length | 424mm |
| Chainstay Length Horizontal | 423.2mm |
| Front-Center | 656.3mm |
| Front-Center Horizontal | 655.8mm |
| Wheelbase | 1079mm |
| Trail | — — |
| Standover Height | 773mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 151mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 129mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 2in |
| Tire Outer Diameter | 660.6mm |
| Bike Length with Tires | 1739.6mm |
| Crank Length | 175mm |
| Handlebar Width | 600mm |
| Stem Length | 105mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 90mm |
| Suspension Sag | 0% |
| Frame Material | Aluminum |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://www.specialized.com/us/en/stumpjumper/p/21987