Bike-on-Bike
Default Config
Default Config
Insights
Somewhat upright stack and reach vs trend of progressive gravel bikes
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A21
Geometry
Stack | 573mm | 575mm +2mm |
Reach | 394mm | 377mm -17mm |
Stack to Reach Ratio | 1.45:1 | 1.53:1 |
Seat Tube Length, C-T | — | 510mm |
Seat Tube Length, Unknown | 480mm | — |
Top Tube Length, Effective/Horizontal HT Top | — | 549mm |
Top Tube Length, Effective/Horizontal Unknown | 559mm | — |
Top Tube Slope | 12deg | 9.4deg -2.6deg |
Head Tube Angle | 71.5deg | 70deg -1.5deg |
Seat Tube Angle | 73.5deg | 73.5deg +0deg |
Head Tube Length | 145mm | 139mm -6mm |
Bottom Bracket Drop | 75mm | 75mm +0mm |
Bottom Bracket Height | 276mm | 264mm -12mm |
Chainstay Length | 425mm | 430mm +5mm |
Chainstay Length Horizontal | 418.3mm | 423.4mm +5.1mm |
Front-Center | 620.2mm | 612mm -8.2mm |
Front-Center Horizontal | 615.7mm | 606.6mm -9.1mm |
Wheelbase | 1034mm | 1030mm -4mm |
Fork Offset/Rake | 52.2mm | 45mm -7.2mm |
Trail | 62.4mm mid/neutral | 75.5mm +13.1mm high |
Mechanical Trail | 59.2mm | 70.9mm +11.7mm |
Wheel Flop | 18.8mm | 24.3mm +5.5mm |
Standover Height | 789mm | — |
Tire to Pedal Spindle | 99.2mm 170 mm cranks | 103mm +3.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 106mm 170 mm cranks | 94mm -12mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 40mm | 47mm +7mm |
Tire Outer Diameter | 702mm | 678mm -24mm |
Bike Length with Tires | 1736mm | 1708mm -28mm |
Crank Length | 170mm | — |
Handlebar Width | 420mm | — |
Stem Length | 70mm | — |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Unknown | Titanium |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://www.canyon.com/it-it/bici-gravel/race/grail/cf/grail-cf-7/4149.html | https://www.serk.cc/a21/ |
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