Bike-on-Bike
Default Config
Default Config
Insights
Somewhat upright stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Specialized Bicycles Roubaix
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Geometry
Stack | 566mm | 549.5mm -16.5mm |
Reach | 370mm | 382mm +12mm |
Stack to Reach Ratio | 1.53:1 | 1.44:1 |
Seat Tube Length, C-TTT | 445mm | — |
Seat Tube Length, Unknown | — | 460mm |
Top Tube Length, Effective/Horizontal HT Top | 534mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 540.4mm |
Top Tube Slope | 13.4deg | 11.9deg -1.5deg |
Head Tube Angle | 71.5deg | 71deg -0.5deg |
Seat Tube Angle | 74deg | 73.9deg -0.1deg |
Head Tube Length | 105mm | 116mm +11mm |
Bottom Bracket Drop | 80mm | 80mm +0mm |
Bottom Bracket Height | 263mm | 271mm +8mm |
Chainstay Length | 418mm | 426mm +8mm |
Chainstay Length Horizontal | 410.3mm | 418.4mm +8.1mm |
Front-Center | 593mm | 603.9mm +10.9mm |
Front-Center Horizontal | 587.7mm | 598.6mm +10.9mm |
Wheelbase | 998mm | 1017mm +19mm |
Fork Offset/Rake | 52mm | 55mm +3mm |
Fork Length (On-Axis) | 375mm | — |
Fork Length, Unknown | — | 397mm |
Trail | 59.9mm mid/neutral | 62.7mm +2.8mm mid/neutral |
Mechanical Trail | 56.8mm | 59.3mm +2.5mm |
Wheel Flop | 18mm | 19.3mm +1.3mm |
Standover Height | 747mm | — |
Tire to Pedal Spindle | 80mm 170 mm cranks | 82.9mm +2.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 93mm 170 mm cranks | 101mm +8mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 32mm | 40mm +8mm |
Tire Outer Diameter | 686mm | 702mm +16mm |
Bike Length with Tires | 1684mm | 1719mm +35mm |
Crank Length | 170mm | — |
Handlebar Width | 400mm | — |
Stem Length | 90mm | — |
| 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 | Disc |
Meta
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| Source | https://www.specialized.com/it/it/roubaix-sl8-pro-sram-force-axs-/p/4221819?color=5383387-4221819&searchText=94426-1056 | https://mondincecycle.com/product/2026-toray-t800-and-t1000-high-stiffness-storage-space-full-carbon-gravel-bike-frame-fm336 |
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