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 A30M
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of HYGGE S-Aura
Geometry
Stack | 623mm | 594.2mm -28.8mm |
Reach | 406mm | 399.5mm -6.5mm |
Stack to Reach Ratio | 1.53:1 | 1.49:1 |
Seat Tube Length, C-T | 580mm | 560mm -20mm |
Top Tube Length, Effective/Horizontal Center | — | 588mm |
Top Tube Length, Effective/Horizontal HT Top | 602mm | — |
Top Tube Slope | 6.9deg | 6.1deg -0.8deg |
Head Tube Angle | 73.5deg | 73.4deg -0.1deg |
Seat Tube Angle | 72.5deg | 72.4deg -0.1deg |
Head Tube Length | 202mm | 190mm -12mm |
Bottom Bracket Drop | 73mm | 67mm -6mm |
Bottom Bracket Height | 266mm | 276mm +10mm |
Chainstay Length | 420mm | 410mm -10mm |
Chainstay Length Horizontal | 413.6mm | 404.5mm -9.1mm |
Front-Center | 617.7mm | 605.2mm -12.5mm |
Front-Center Horizontal | 613.4mm | 601.5mm -11.9mm |
Wheelbase | 1027mm | 1006mm -21mm |
Fork Offset/Rake | 43mm | 43mm +0mm |
Fork Length (Axle-To-Crown) | — | 373mm |
Trail | 55.6mm mid/neutral | 57.4mm +1.8mm mid/neutral |
Mechanical Trail | 53.3mm | 55mm +1.7mm |
Wheel Flop | 15.1mm | 15.7mm +0.6mm |
Tire to Pedal Spindle | 108.7mm 170 mm cranks | 92.2mm -16.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 106mm +10mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 32mm +4mm |
Tire Outer Diameter | 678mm | 686mm +8mm |
Bike Length with Tires | 1705mm | 1692mm -13mm |
| 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
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| Source | https://www.serk.cc/a30m/ | https://www.hyggecycle.com/products/model-s-aura-2026-uci-approved-frameset-hand-painted-landscape |
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