2026 Curtis Trailboss Base M
Build
26 in × 2.2 in
Insights
Average stack and reach vs trend of bmx/dirt jump bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 546mm |
| Reach | 430mm |
| Stack to Reach Ratio | 1.27:1 |
| Seat Tube Length, Unknown | 330mm |
| Top Tube Slope | 23.6deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 25mm |
| Bottom Bracket Height | 310.4mm |
| Chainstay Length | 395mm |
| Chainstay Length Horizontal | 394.2mm |
| Front-Center | 673.3mm |
| Front-Center Horizontal | 672.8mm |
| Wheelbase | 1067.1mm |
| Fork Offset/Rake | 40mm |
| Fork Length (Axle-To-Crown) | 482mm |
| Trail | 85.9mm very high |
| Mechanical Trail | 80.2mm |
| Wheel Flop | 28.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 167.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 140.4mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 2.2in |
| Tire Outer Diameter | 670.8mm |
| Bike Length with Tires | 1737.8mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Moto/Klunker/Riser Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | Unknown |
| Brake Type | Disc |
| Features | Single-speed capable |
Source:curtisbikes.co.uk