2025 Bearclaw Bicycle Co. Bruno 27.5 S
Build
650B/27.5 in × 4.5 in
Insights
Average stack and reach vs trend of rigid fatbike bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 591mm |
| Reach | 401mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 380mm |
| Top Tube Length, Effective/Horizontal HT Top | 570mm |
| Top Tube Slope | 24.1deg |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 66mm |
| Bottom Bracket Height | 340.3mm |
| Chainstay Length | 458mm |
| Chainstay Length Horizontal | 453.2mm |
| Front-Center | 671mm |
| Front-Center Horizontal | 667.8mm |
| Wheelbase | 1121mm |
| Fork Offset/Rake | 51mm |
| Fork Length (On-Axis) | 489mm |
| Trail | 109.2mm very high |
| Mechanical Trail | 101.2mm |
| Wheel Flop | 37.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 94.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 170.3mm |
27.5 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 4.5in |
| Tire Outer Diameter | 812.6mm |
| Bike Length with Tires | 1933.6mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Titanium |
| Fork Material | N/A |
| Brake Type | Disc |
| Features | Single-speed capable |
Source:https://bearclawbicycleco.com/pages/bruno