2026 State Bicycle Co. 4130 All-Road Riser Bar Base S
Build
650B/27.5 in × 2.1 in
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 581.6mm |
| Reach | 373.7mm |
| Stack to Reach Ratio | 1.56:1 |
| Seat Tube Length, C-T | 470mm |
| Top Tube Length, Effective/Horizontal Center | 535mm |
| Top Tube Slope | 14.5deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 270.3mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 443.7mm |
| Front-Center | 574.3mm |
| Front-Center Horizontal | 569.4mm |
| Wheelbase | 1013.1mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 405mm |
| Trail | 66mm high |
| Mechanical Trail | 62.4mm |
| Wheel Flop | 20.3mm |
| Standover Height | 764mm |
| Tire to Pedal Spindle Distance With 165 mm cranks | 64mm |
| Pedal Spindle to Ground Clearance With 165 mm cranks | 105.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1703.8mm |
| Crank Length | 165mm |
| Stem Length | 60mm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 5 in to 5 ft 10 in |
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