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 | 575mm | 585mm +10mm |
Reach | 377mm | 386mm +9mm |
Stack to Reach Ratio | 1.53:1 | 1.52:1 |
Seat Tube Length, C-T | 510mm | 460mm -50mm |
Top Tube Length, Effective/Horizontal HT Top | 549mm | 553mm +4mm |
Top Tube Slope | 9.4deg | 15.6deg +6.2deg |
Head Tube Angle | 70deg | 70.5deg +0.5deg |
Seat Tube Angle | 73.5deg | 74.3deg +0.8deg |
Head Tube Length | 139mm | 131mm -8mm |
Bottom Bracket Drop | 75mm | 78mm +3mm |
Bottom Bracket Height | 264mm | 283mm +19mm |
Chainstay Length | 430mm | 436mm +6mm |
Chainstay Length Horizontal | 423.4mm | 429mm +5.6mm |
Front-Center | 612mm | 621mm +9mm |
Front-Center Horizontal | 606.6mm | 616mm +9.4mm |
Wheelbase | 1030mm | 1045mm +15mm |
Fork Offset/Rake | 45mm | 48mm +3mm |
Fork Length (Axle-To-Crown) | — | 425mm |
Trail | 75.5mm high | 76.9mm +1.4mm high |
Mechanical Trail | 70.9mm | 72.5mm +1.6mm |
Wheel Flop | 24.3mm | 24.2mm -0.1mm |
Standover Height | — | 755mm |
Tire to Pedal Spindle | 103mm 170 mm cranks | 90mm -13mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 94mm 170 mm cranks | 113mm +19mm 170 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 47mm | 50mm +3mm |
Tire Width Max | 55mm | 57mm +2mm |
Tire Outer Diameter | 678mm | 722mm +44mm |
Bike Length with Tires | 1708mm | 1767mm +59mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, 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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