2026 State Bicycle Co. 4130 All-Road Riser Bar Base M
Build
650B/27.5 in × 2.1 in
Insights
Very upright stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 602.5mm |
| Reach | 371.5mm |
| Stack to Reach Ratio | 1.62:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Length, Effective/Horizontal Center | 550mm |
| Top Tube Slope | 12.4deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 165mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 270.3mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 443.7mm |
| Front-Center | 615mm |
| Front-Center Horizontal | 610.4mm |
| Wheelbase | 1054.1mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 405mm |
| Trail | 62.8mm mid/neutral |
| Mechanical Trail | 59.6mm |
| Wheel Flop | 18.9mm |
| Standover Height | 790mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 99.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 100.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1744.8mm |
| Crank Length | 170mm |
| 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 9 in to 6 ft 2 in |
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