Bike-on-Bike
Default Config
Default Config
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of OPEN Cycle U.P.P.E.R.
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A40
Geometry
Stack | 604mm | 613mm +9mm |
Reach | 401mm | 398mm -3mm |
Stack to Reach Ratio | 1.51:1 | 1.54:1 |
Seat Tube Length, C-T | 580mm | — |
Seat Tube Length, Unknown | — | 560mm |
Top Tube Length, Effective/Horizontal HT Top | 591mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 580mm |
Top Tube Slope | 5.1deg | 7.8deg +2.7deg |
Head Tube Angle | 72.5deg | 71.5deg -1deg |
Seat Tube Angle | 72.5deg | 73.5deg +1deg |
Head Tube Length | 180mm | 192mm +12mm |
Bottom Bracket Drop | 70mm | 73mm +3mm |
Bottom Bracket Height | 275.3mm | 278mm +2.7mm |
Chainstay Length | 420mm | 420mm +0mm |
Chainstay Length Horizontal | 414.1mm | 413.6mm -0.5mm |
Front-Center | 622mm | 632.6mm +10.6mm |
Front-Center Horizontal | 617.9mm | 628.4mm +10.5mm |
Wheelbase | 1032mm | 1042mm +10mm |
Fork Offset/Rake | 50mm | 47mm -3mm |
Trail | 56.5mm mid/neutral | 67.9mm +11.4mm high |
Mechanical Trail | 53.9mm | 64.4mm +10.5mm |
Wheel Flop | 16.2mm | 20.4mm +4.2mm |
Standover Height | 815mm | 831mm +16mm |
Tire to Pedal Spindle | 106.7mm 170 mm cranks | 111.6mm +4.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 105.3mm 170 mm cranks | 108mm +2.7mm 170 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.1in | 40mm -13.3mm |
Tire Outer Diameter | 690.7mm | 702mm +11.3mm |
Bike Length with Tires | 1722.7mm | 1744mm +21.3mm |
| 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 | Unknown |
Meta
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| Source | https://opencycle.com/UP | SERK.CC |
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