Bike-on-Bike
Default Config
Default Config
Insights
Very upright stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of TanTan Cycling (Seraph) GR257
Average stack and reach vs trend of all-road/gravel bikes
Geometry
Stack | 580mm | 579mm -1mm |
Reach | 383mm | 385mm +2mm |
Stack to Reach Ratio | 1.51:1 | 1.5:1 |
Seat Tube Length, C-T | — | 510mm |
Seat Tube Length, C-TTT | 546mm | — |
Top Tube Length, Effective/Horizontal Center | 558mm | 556mm -2mm |
Top Tube Slope | 4deg | 9.6deg +5.6deg |
Head Tube Angle | 71deg | 71deg +0deg |
Seat Tube Angle | 73.3deg | 73.5deg +0.2deg |
Head Tube Length | 153mm | 155mm +2mm |
Bottom Bracket Drop | 69mm | 70mm +1mm |
Bottom Bracket Height | 292mm | 281mm -11mm |
Chainstay Length | 435mm | 425mm -10mm |
Chainstay Length Horizontal | 429.5mm | 419.2mm -10.3mm |
Front-Center | 621.4mm | 617mm -4.4mm |
Front-Center Horizontal | 617.5mm | 612.8mm -4.7mm |
Wheelbase | 1047mm | 1032mm -15mm |
Fork Offset/Rake | 55mm | 50mm -5mm |
Fork Length (On-Axis) | — | 400mm |
Fork Length, Unknown | 405mm | — |
Trail | 66.1mm high | 68mm +1.9mm high |
Mechanical Trail | 62.5mm | 64.3mm +1.8mm |
Wheel Flop | 20.4mm | 20.9mm +0.5mm |
Tire to Pedal Spindle | 90.4mm 170 mm cranks | 96mm +5.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 122mm 170 mm cranks | 111mm -11mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 50mm | 40mm -10mm |
Tire Width Max | 57mm | — |
Tire Outer Diameter | 722mm | 702mm -20mm |
Bike Length with Tires | 1769mm | 1734mm -35mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Carbon/Composite | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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