2026 Specialized Bicycles Roubaix SL8 all 58
Build
700C/29 in × 32 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Specialized Bicycles Roubaix SL8
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 630mm |
| Reach | 397mm |
| Stack to Reach Ratio | 1.59:1 |
| Seat Tube Length, C-T | 505mm |
| Top Tube Length, Effective/Horizontal Center | 584mm |
| Top Tube Slope | 15.1deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 168mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 265mm |
| Chainstay Length | 423mm |
| Chainstay Length Horizontal | 415.8mm |
| Front-Center | 589mm |
| Front-Center Horizontal | 626.3mm |
| Wheelbase | 1042mm |
| Fork Offset/Rake | 47mm |
| Fork Length (Axle-To-Crown) | 375mm |
| Trail | 55.7mm mid/neutral |
| Mechanical Trail | 53.3mm |
| Wheel Flop | 15.6mm |
| Standover Height | 809mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 71mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 90mm |
all Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1728mm |
| Crank Length | 175mm |
| Handlebar Width | 440mm |
| Stem Length | 110mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.specialized.com/gb/en/roubaix-sl8-pro-sram-force-axs-/p/4221819?color=5383387-4221819