Bike-on-Bike
Default Config
Default Config
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A21
Average stack and reach vs trend of all-road/gravel bikes
Geometry
Stack | 619mm | 614mm -5mm |
Reach | 403mm | 403mm +0mm |
Stack to Reach Ratio | 1.54:1 | 1.52:1 |
Seat Tube Length, C-T | 560mm | 560mm +0mm |
Top Tube Length, Effective/Horizontal Center | — | 585mm |
Top Tube Length, Effective/Horizontal HT Top | 594mm | — |
Top Tube Slope | 8.4deg | 7.8deg -0.6deg |
Head Tube Angle | 70deg | 71.5deg +1.5deg |
Seat Tube Angle | 73deg | 73.5deg +0.5deg |
Head Tube Length | 188mm | 190mm +2mm |
Bottom Bracket Drop | 73mm | 70mm -3mm |
Bottom Bracket Height | 266mm | 281mm +15mm |
Chainstay Length | 430mm | 425mm -5mm |
Chainstay Length Horizontal | 423.8mm | 419.2mm -4.6mm |
Front-Center | 654mm | 642mm -12mm |
Front-Center Horizontal | 649.2mm | 637.8mm -11.4mm |
Wheelbase | 1073mm | 1057mm -16mm |
Fork Offset/Rake | 45mm | 50mm +5mm |
Fork Length (On-Axis) | — | 400mm |
Trail | 75.5mm high | 64.7mm -10.8mm mid/neutral |
Mechanical Trail | 70.9mm | 61.4mm -9.5mm |
Wheel Flop | 24.3mm | 19.5mm -4.8mm |
Tire to Pedal Spindle | 145mm 170 mm cranks | 121mm -24mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 111mm +15mm 170 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 47mm | 40mm -7mm |
Tire Outer Diameter | 678mm | 702mm +24mm |
Bike Length with Tires | 1751mm | 1759mm +8mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Titanium | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://www.serk.cc/a21/ | https://www.pandapodium.cc/product/tavelo-wild-disc-brake-gravel-frameset/ |
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