2018 Bearclaw Bicycle Co. Thunderhawk 650b Road+ 57
Build
650B/27.5 in × 47 mm
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 | 604mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, Unknown | 570mm |
| Top Tube Length, Effective/Horizontal Center | 575mm |
| Top Tube Slope | 6.1deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 170mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 428mm |
| Chainstay Length Horizontal | 422.6mm |
| Front-Center | 620.7mm |
| Front-Center Horizontal | 616.9mm |
| Wheelbase | 1039.5mm |
| Fork Offset/Rake | 47mm |
| Fork Length, Unknown | 400mm |
| Trail | 63.9mm mid/neutral |
| Mechanical Trail | 60.6mm |
| Wheel Flop | 19.2mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 109.2mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 98.5mm |
650b Road+ Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1717.5mm |
| Crank Length | 172.5mm |
| Handlebar Width | 42cm |
| Stem Length | 100mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Titanium |
| Brake Type | Disc |
Source:https://www.bearclawbicycleco.com/thunderhawk-titanium-650b-gravel-bike