2004 Surly Bikes Instigator Base medium
Build
26 in × 2.7 in
Insights
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Seat Tube Length, C-T | 457.2mm |
| Top Tube Length, Effective/Horizontal Center | 599.4mm |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 72deg |
| Head Tube Length | 109.2mm |
| Bottom Bracket Drop | 25.4mm |
| Bottom Bracket Height | 322.7mm |
| Chainstay Length | 424.2mm |
| Chainstay Length Horizontal | 423.4mm |
| Trail | — — |
| Standover Height | 772.2mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | — |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 152.7mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 2.7in |
| Tire Outer Diameter | 696.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | N/A |
| Brake Type | Rim |
Source:https://surlybikes.com/uploads/downloads/SURLYInstigator.pdf