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 | 556mm | 575mm +19mm |
Reach | 385mm | 377mm -8mm |
Stack to Reach Ratio | 1.44:1 | 1.53:1 |
Seat Tube Length, C-T | — | 510mm |
Seat Tube Length, Unknown | 450mm | — |
Top Tube Length, Effective/Horizontal HT Top | — | 549mm |
Top Tube Length, Effective/Horizontal Unknown | 550mm | — |
Top Tube Slope | 13.7deg | 9.4deg -4.3deg |
Head Tube Angle | 71deg | 70deg -1deg |
Seat Tube Angle | 73.5deg | 73.5deg +0deg |
Head Tube Length | 129mm | 139mm +10mm |
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 | 610.3mm | 612mm +1.7mm |
Front-Center Horizontal | 605.7mm | 606.6mm +0.9mm |
Wheelbase | 1024mm | 1030mm +6mm |
Fork Offset/Rake | 52.1mm | 45mm -7.1mm |
Trail | 65.8mm high | 75.5mm +9.7mm high |
Mechanical Trail | 62.2mm | 70.9mm +8.7mm |
Wheel Flop | 20.3mm | 24.3mm +4mm |
Standover Height | 766mm | — |
Tire to Pedal Spindle | 94.3mm 165 mm cranks | 103mm +8.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 111mm 165 mm cranks | 94mm -17mm 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 | 1726mm | 1708mm -18mm |
Crank Length | 165mm | — |
Handlebar Width | 420mm | — |
Stem Length | 60mm | — |
| 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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