Bike-on-Bike
Default Config
Default Config
Insights
Average stack and reach vs trend of all-road/gravel bikes
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A21
Geometry
Stack | 601mm | 597mm -4mm |
Reach | 386mm | 390mm +4mm |
Stack to Reach Ratio | 1.56:1 | 1.53:1 |
Seat Tube Length, C-T | 520mm | 535mm +15mm |
Top Tube Length, Effective/Horizontal HT Top | 570mm | 569mm -1mm |
Top Tube Slope | 10.9deg | 8.8deg -2.1deg |
Head Tube Angle | 71.5deg | 70deg -1.5deg |
Seat Tube Angle | 73deg | 73.5deg +0.5deg |
Head Tube Length | 150mm | 164mm +14mm |
Bottom Bracket Drop | 71mm | 73mm +2mm |
Bottom Bracket Height | 284mm | 266mm -18mm |
Chainstay Length | 430mm | 430mm +0mm |
Chainstay Length Horizontal | 424.1mm | 423.8mm -0.3mm |
Front-Center | 616mm | 633mm +17mm |
Front-Center Horizontal | 611.9mm | 628.2mm +16.3mm |
Wheelbase | 1036mm | 1052mm +16mm |
Fork Offset/Rake | 50mm | 45mm -5mm |
Trail | 66.1mm high | 75.5mm +9.4mm high |
Mechanical Trail | 62.6mm | 70.9mm +8.3mm |
Wheel Flop | 19.9mm | 24.3mm +4.4mm |
Tire to Pedal Spindle | 88.5mm 172.5 mm cranks | 124mm +35.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 111.5mm 172.5 mm cranks | 96mm -15.5mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 44mm | 47mm +3mm |
Tire Outer Diameter | 710mm | 678mm -32mm |
Bike Length with Tires | 1746mm | 1730mm -16mm |
Crank Length | 172.5mm | — |
Handlebar Width | 440mm | — |
Stem Length | 100mm | — |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Carbon/Composite | Titanium |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://www.lapierrebikes.com/nl-en/o/crosshill-cf-60-s-2025/ | https://www.serk.cc/a21/ |
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