2019 Bearclaw Bicycle Co. Thunderhawk 650b Road+ 54
Build
650B/27.5 in × 2.1 in
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bearclaw Bicycle Co. Thunderhawk
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580mm |
| Reach | 383.2mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, Unknown | 540mm |
| Top Tube Length, Effective/Horizontal Unknown | 555mm |
| Top Tube Slope | 6.7deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 277.3mm |
| Chainstay Length | 428mm |
| Chainstay Length Horizontal | 422.6mm |
| Front-Center | 610.2mm |
| Front-Center Horizontal | 606.4mm |
| Wheelbase | 1029mm |
| Fork Offset/Rake | 47mm |
| Fork Length, Unknown | 405mm |
| Trail | 69.2mm high |
| Mechanical Trail | 65.4mm |
| Wheel Flop | 21.3mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 92.4mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 104.8mm |
650b Road+ Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1719.7mm |
| Crank Length | 172.5mm |
| Handlebar Width | 42cm |
| Stem Length | 90mm |
| Stem Angle | 10deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 7 in to 5 ft 10 in |
Source:https://bearclawbicycleco.com/thunderhawk-titanium-650b-gravel-bike/