2025 4BRO BIKES Gravel Bike Steel S
Build
700C/29 in × 52 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of 4BRO BIKES Gravel Bike
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 569mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, Unknown | 450mm |
| Top Tube Length, Effective/Horizontal Unknown | 535mm |
| Top Tube Slope | 14.9deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 291mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 423.9mm |
| Front-Center | 624mm |
| Front-Center Horizontal | 620.1mm |
| Wheelbase | 1044mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 400mm |
| Trail | 78.9mm high |
| Mechanical Trail | 74.2mm |
| Wheel Flop | 25.4mm |
| Standover Height | 775mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 91mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 121mm |
Steel Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 52mm |
| Tire Outer Diameter | 726mm |
| Bike Length with Tires | 1770mm |
| Crank Length | 170mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 6 in to 5 ft 9 in |
Source:https://4brobikes.vn/