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
Design deviates from other sizes of TanTan Cycling (Seraph) GR047
Geometry
Stack | 597mm | 582mm -15mm |
Reach | 390mm | 382mm -8mm |
Stack to Reach Ratio | 1.53:1 | 1.52:1 |
Seat Tube Length, C-T | 535mm | 460mm -75mm |
Top Tube Length, Effective/Horizontal HT Top | 569mm | 552mm -17mm |
Top Tube Slope | 8.8deg | — |
Head Tube Angle | 70deg | 71deg +1deg |
Seat Tube Angle | 73.5deg | — |
Effective Seat Tube Angle, ETT Center | — | 73.1deg |
Head Tube Length | 164mm | 150mm -14mm |
Bottom Bracket Drop | 73mm | 76mm +3mm |
Bottom Bracket Height | 266mm | 273mm +7mm |
Chainstay Length | 430mm | 430mm +0mm |
Chainstay Length Horizontal | 423.8mm | 423.2mm -0.6mm |
Front-Center | 633mm | 614mm -19mm |
Front-Center Horizontal | 628.2mm | 609.3mm -18.9mm |
Wheelbase | 1052mm | 1032.5mm -19.5mm |
Fork Offset/Rake | 45mm | 50mm +5mm |
Trail | 75.5mm high | 67.3mm -8.2mm high |
Mechanical Trail | 70.9mm | 63.6mm -7.3mm |
Wheel Flop | 24.3mm | 20.7mm -3.6mm |
Tire to Pedal Spindle | 124mm 170 mm cranks | 95mm -29mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 103mm +7mm 170 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 47mm | 38mm -9mm |
Tire Outer Diameter | 678mm | 698mm +20mm |
Bike Length with Tires | 1730mm | 1730.5mm +0.5mm |
| 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
| Actions | ||
| Source | https://www.serk.cc/a21/ | Tantan web site |
| Brand | ||
| Bike | ||
| Size | ||
| Category |