Bike-on-Bike
Default Config
Default Config
Insights
Average stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of Factor Bikes OSTRO GRAVEL
Somewhat aggressive stack and reach vs trend of performance road bikes
Design deviates from other sizes of SEKA Spear
Geometry
Stack | 555mm | 560mm +5mm |
Reach | 394mm | 397mm +3mm |
Stack to Reach Ratio | 1.41:1 | 1.41:1 |
Seat Tube Length, C-T | 483mm | 496mm +13mm |
Top Tube Length, Effective/Horizontal Center | — | 544mm |
Top Tube Slope | 9.8deg | 8.9deg -0.9deg |
Head Tube Angle | 72.2deg | 73.1deg +0.9deg |
Seat Tube Angle | 74deg | 73.5deg -0.5deg |
Head Tube Length | — | 153mm |
Bottom Bracket Drop | 74mm | 72mm -2mm |
Bottom Bracket Height | 277mm | 267mm -10mm |
Chainstay Length | 420mm | 410mm -10mm |
Chainstay Length Horizontal | 413.4mm | 403.6mm -9.8mm |
Front-Center | 605.1mm | 595.7mm -9.4mm |
Front-Center Horizontal | 600.6mm | 591.4mm -9.2mm |
Wheelbase | 1014mm | 995mm -19mm |
Fork Offset/Rake | 50mm | 44mm -6mm |
Fork Length (Axle-To-Crown) | — | 372mm |
Trail | 60.2mm mid/neutral | 57mm -3.2mm mid/neutral |
Mechanical Trail | 57.3mm | 54.6mm -2.7mm |
Wheel Flop | 17.5mm | 15.9mm -1.6mm |
Standover Height | 786mm | — |
Tire to Pedal Spindle | 84.1mm 170 mm cranks | 86.7mm +2.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 107mm 170 mm cranks | 97mm -10mm 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 | 1716mm | 1673mm -43mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Carbon/Composite | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Rim |
Meta
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| Source | https://factorbikes.com/bikes/ostro-gravel | https://www.sekabikes.com/spear-2/ |
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