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 Serk Titanium A30M
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of HYGGE S-Aura
Geometry
Stack | 529mm | 532.3mm +3.3mm |
Reach | 374mm | 378mm +4mm |
Stack to Reach Ratio | 1.41:1 | 1.41:1 |
Seat Tube Length, C-T | 490mm | 485mm -5mm |
Top Tube Length, Effective/Horizontal Center | — | 533.7mm |
Top Tube Length, Effective/Horizontal HT Top | 526mm | — |
Top Tube Slope | 6.5deg | 7.4deg +0.9deg |
Head Tube Angle | 72deg | 72deg +0deg |
Seat Tube Angle | 74deg | 73.7deg -0.3deg |
Head Tube Length | 109mm | 125mm +16mm |
Bottom Bracket Drop | 73mm | 72mm -1mm |
Bottom Bracket Height | 266mm | 271mm +5mm |
Chainstay Length | 420mm | 410mm -10mm |
Chainstay Length Horizontal | 413.6mm | 403.6mm -10mm |
Front-Center | 572.1mm | 577.3mm +5.2mm |
Front-Center Horizontal | 567.4mm | 572.8mm +5.4mm |
Wheelbase | 981mm | 976.4mm -4.6mm |
Fork Offset/Rake | 43mm | 43mm +0mm |
Fork Length (Axle-To-Crown) | — | 373mm |
Trail | 64.9mm mid/neutral | 66.2mm +1.3mm high |
Mechanical Trail | 61.8mm | 63mm +1.2mm |
Wheel Flop | 19.1mm | 19.5mm +0.4mm |
Tire to Pedal Spindle | 63.1mm 170 mm cranks | 64.3mm +1.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 101mm +5mm 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 | 1659mm | 1662.4mm +3.4mm |
| 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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