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
Somewhat upright stack and reach vs trend of endurance road bikes
Geometry
Stack | 529mm | 548mm +19mm |
Reach | 374mm | 368mm -6mm |
Stack to Reach Ratio | 1.41:1 | 1.49:1 |
Seat Tube Length, C-T | 490mm | — |
Seat Tube Length, C-TTT | — | 500mm |
Top Tube Length, Effective/Horizontal Center | — | 530.3mm |
Top Tube Length, Effective/Horizontal HT Top | 526mm | — |
Top Tube Slope | 6.5deg | 5.5deg -1deg |
Head Tube Angle | 72deg | 72deg +0deg |
Seat Tube Angle | 74deg | 73.5deg -0.5deg |
Head Tube Length | 109mm | 138.8mm +29.8mm |
Bottom Bracket Drop | 73mm | 71.9mm -1.1mm |
Bottom Bracket Height | 266mm | 274.1mm +8.1mm |
Chainstay Length | 420mm | 422mm +2mm |
Chainstay Length Horizontal | 413.6mm | 415.8mm +2.2mm |
Front-Center | 572.1mm | 576.6mm +4.5mm |
Front-Center Horizontal | 567.4mm | 572.1mm +4.7mm |
Wheelbase | 981mm | 987.9mm +6.9mm |
Fork Offset/Rake | 43mm | 47mm +4mm |
Fork Length, Unknown | — | 375mm |
Trail | 64.9mm mid/neutral | 63mm -1.9mm mid/neutral |
Mechanical Trail | 61.8mm | 59.9mm -1.9mm |
Wheel Flop | 19.1mm | 18.5mm -0.6mm |
Tire to Pedal Spindle | 63.1mm 170 mm cranks | 60.6mm -2.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 170 mm cranks | 104.1mm +8.1mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 35mm +7mm |
Tire Outer Diameter | 678mm | 692mm +14mm |
Bike Length with Tires | 1659mm | 1679.9mm +20.9mm |
| 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.xmcarbonspeed.cc/products/xmcs-gran-turismo-frameset |
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