2008 Surly Bikes Big Dummy Base Medium (18)
Build
26 in × 60 mm
Insights
Design deviates from other sizes of Surly Bikes Big Dummy
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580mm |
| Reach | 418.1mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 457.2mm |
| Top Tube Length, Effective/Horizontal Center | 596.1mm |
| Top Tube Length, Actual C-C | 570.1mm |
| Top Tube Slope | 16.3deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 145.9mm |
| Bottom Bracket Drop | 40mm |
| Bottom Bracket Height | 299.5mm |
| Chainstay Length | 827mm |
| Chainstay Length Horizontal | 826mm |
| Front-Center | 634mm |
| Front-Center Horizontal | 632.8mm |
| Wheelbase | 1458.8mm |
| Fork Offset/Rake | 43mm |
| Fork Length (On-Axis) | 420mm |
| Trail | 65.1mm high |
| Mechanical Trail | 61.9mm |
| Wheel Flop | 19.1mm |
| Standover Height | 773mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 119.5mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 124.5mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 60mm |
| Tire Outer Diameter | 679mm |
| Bike Length with Tires | 2137.8mm |
| Crank Length | 175mm |
| Handlebar Width | 750mm |
| Stem Length | 90mm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://surlybikes.com/bikes/big_dummy