Bike-on-Bike
Default Config
Default Config
Insights
Somewhat aggressive 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 | 612.8mm | 619mm +6.2mm |
Reach | 411.4mm | 403mm -8.4mm |
Stack to Reach Ratio | 1.49:1 | 1.54:1 |
Seat Tube Length, C-T | 530mm | 560mm +30mm |
Top Tube Length, Effective/Horizontal HT Top | 590mm | 594mm +4mm |
Top Tube Slope | 10.5deg | 8.4deg -2.1deg |
Head Tube Angle | 71.5deg | 70deg -1.5deg |
Seat Tube Angle | 73.75deg | 73deg -0.75deg |
Head Tube Length | 170mm | 188mm +18mm |
Bottom Bracket Drop | 78mm | 73mm -5mm |
Bottom Bracket Height | 273mm | 266mm -7mm |
Chainstay Length | 430mm | 430mm +0mm |
Chainstay Length Horizontal | 422.9mm | 423.8mm +0.9mm |
Front-Center | 645.7mm | 654mm +8.3mm |
Front-Center Horizontal | 640.9mm | 649.2mm +8.3mm |
Wheelbase | 1063.8mm | 1073mm +9.2mm |
Fork Offset/Rake | 48mm | 45mm -3mm |
Fork Length (Axle-To-Crown) | 410mm | — |
Trail | 66.8mm high | 75.5mm +8.7mm high |
Mechanical Trail | 63.4mm | 70.9mm +7.5mm |
Wheel Flop | 20.1mm | 24.3mm +4.2mm |
Standover Height | 842mm | — |
Tire to Pedal Spindle | 124.7mm 170 mm cranks | 145mm +20.3mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 103mm 170 mm cranks | 96mm -7mm 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 | 1765.8mm | 1751mm -14.8mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Aluminum | Titanium |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://www.rosebikes.com/p/rose-backroad-al-eq-2725772 | https://www.serk.cc/a21/ |
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