2023 hosking HR4 Base 51
Build
700C/29 in × 32 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of hosking HR4
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 523mm |
| Reach | 379mm |
| Stack to Reach Ratio | 1.38:1 |
| Seat Tube Length, C-T | 473mm |
| Seat Tube Length, C-C | 453mm |
| Top Tube Length, Effective/Horizontal Center | 530mm |
| Top Tube Slope | 7.6deg |
| Head Tube Angle | 72.1deg |
| Seat Tube Angle | 74.4deg |
| Head Tube Length | 107.5mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 273mm |
| Chainstay Length | 408mm |
| Chainstay Length Horizontal | 402mm |
| Front-Center | 579mm |
| Front-Center Horizontal | 575.1mm |
| Wheelbase | 977mm |
| Fork Offset/Rake | 47.3mm |
| Fork Length (Axle-To-Crown) | 373.5mm |
| Trail | 61.1mm mid/neutral |
| Mechanical Trail | 58.1mm |
| Wheel Flop | 17.9mm |
| Standover Height | 743mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 66mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 103mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1663mm |
| Crank Length | 170mm |
| Handlebar Width | 380mm |
| Stem Length | 90mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://hoskingbikes.com/products/road-hr4-axs