Bike-on-Bike
Default Config
Default Config
Insights
Somewhat upright stack and reach vs trend of progressive gravel bikes
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A30M
Geometry
Stack | 580mm | 575mm -5mm |
Reach | 402mm | 390mm -12mm |
Stack to Reach Ratio | 1.44:1 | 1.47:1 |
Seat Tube Length, C-T | 500mm | 530mm +30mm |
Top Tube Length, Effective/Horizontal HT Top | — | 566mm |
Top Tube Slope | 10.5deg | 7.1deg -3.4deg |
Head Tube Angle | 72.3deg | 73deg +0.7deg |
Seat Tube Angle | 73.5deg | 73deg -0.5deg |
Head Tube Length | — | 154mm |
Bottom Bracket Drop | 74mm | 73mm -1mm |
Bottom Bracket Height | 277mm | 266mm -11mm |
Chainstay Length | 423mm | 420mm -3mm |
Chainstay Length Horizontal | 416.5mm | 413.6mm -2.9mm |
Front-Center | 617mm | 592.9mm -24.1mm |
Front-Center Horizontal | 612.5mm | 588.4mm -24.1mm |
Wheelbase | 1029mm | 1002mm -27mm |
Fork Offset/Rake | 50mm | 43mm -7mm |
Trail | 59.5mm mid/neutral | 58.7mm -0.8mm mid/neutral |
Mechanical Trail | 56.7mm | 56.1mm -0.6mm |
Wheel Flop | 17.2mm | 16.4mm -0.8mm |
Standover Height | 802mm | — |
Tire to Pedal Spindle | 96mm 170 mm cranks | 83.9mm -12.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 107mm 170 mm cranks | 96mm -11mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 40mm | 28mm -12mm |
Tire Outer Diameter | 702mm | 678mm -24mm |
Bike Length with Tires | 1731mm | 1680mm -51mm |
| 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 | Disc |
Meta
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| Source | https://factorbikes.com/bikes/ostro-gravel | https://www.serk.cc/a30m/ |
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