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
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Geometry
Stack | 619mm | 620mm +1mm |
Reach | 403mm | 390mm -13mm |
Stack to Reach Ratio | 1.54:1 | 1.59:1 |
Seat Tube Length, C-T | 560mm | 550mm -10mm |
Top Tube Length, Effective/Horizontal HT Top | 594mm | 585mm -9mm |
Top Tube Slope | 8.4deg | 9.8deg +1.4deg |
Head Tube Angle | 70deg | 71.5deg +1.5deg |
Seat Tube Angle | 73deg | 72.5deg -0.5deg |
Head Tube Length | 188mm | 170mm -18mm |
Bottom Bracket Drop | 73mm | 71mm -2mm |
Bottom Bracket Height | 266mm | 284mm +18mm |
Chainstay Length | 430mm | 430mm +0mm |
Chainstay Length Horizontal | 423.8mm | 424.1mm +0.3mm |
Front-Center | 654mm | 625mm -29mm |
Front-Center Horizontal | 649.2mm | 620.9mm -28.3mm |
Wheelbase | 1073mm | 1045mm -28mm |
Fork Offset/Rake | 45mm | 50mm +5mm |
Trail | 75.5mm high | 66.1mm -9.4mm high |
Mechanical Trail | 70.9mm | 62.6mm -8.3mm |
Wheel Flop | 24.3mm | 19.9mm -4.4mm |
Tire to Pedal Spindle | 145mm 170 mm cranks | 95mm -50mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 109mm +13mm 175 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 47mm | 44mm -3mm |
Tire Outer Diameter | 678mm | 710mm +32mm |
Bike Length with Tires | 1751mm | 1755mm +4mm |
Crank Length | — | 175mm |
Handlebar Width | — | 440mm |
Stem Length | — | 110mm |
| 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/ | https://www.lapierrebikes.com/nl-en/o/crosshill-cf-60-s-2025/ |
| Brand | ||
| Bike | ||
| Size | ||
| Category |