Bike-on-Bike
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Specialized Bicycles Sirrus
Geometry
Stack | 564mm | — |
Reach | 388mm | — |
Stack to Reach Ratio | 1.45:1 | — |
Seat Tube Length, Unknown | 430mm | — |
Top Tube Length, Effective/Horizontal Center | 555mm | — |
Top Tube Slope | 16.6deg | — |
Head Tube Angle | 70deg | — |
Seat Tube Angle | 73.5deg | — |
Head Tube Length | 133mm | — |
Bottom Bracket Drop | 70mm | — |
Bottom Bracket Height | 271mm | — |
Chainstay Length | 440mm | — |
Chainstay Length Horizontal | 434.4mm | — |
Front-Center | 626mm | — |
Front-Center Horizontal | 621.6mm | — |
Wheelbase | 1056mm | — |
Fork Offset/Rake | 51mm | — |
Fork Length, Unknown | 410mm | — |
Trail | 69.8mm high | — — |
Mechanical Trail | 65.6mm | — |
Wheel Flop | 22.5mm | — |
Standover Height | 735mm | — |
Tire to Pedal Spindle | 115mm 170 mm cranks | — |
Pedal Spindle to Ground Clearance | 101mm 170 mm cranks | — |
Build
Wheel Size | 700C/29 in 622 mm BSD | — — |
Tire Width | 30mm | — |
Tire Outer Diameter | 682mm | — |
Bike Length with Tires | 1738mm | — |
Crank Length | 170mm | — |
Handlebar Width | 580mm | — |
Stem Length | 75mm | — |
| Suspension Type | Rigid, non-suspension corrected | — |
| Bar Type | Flat Bar | — |
| Frame Material | Aluminum | — |
| Fork Material | Steel | — |
| Brake Type | Rim | — |
Meta
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| Source | https://www.specialized.com/us/en/sirrus-single-speed-mens-spec/p/173615?color=271962-173615&searchText=90919-7704 | — |
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