2018 Specialized Bicycles Roubaix Base 49
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Specialized Bicycles Roubaix
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 549mm |
| Reach | 369mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 425mm |
| Top Tube Length, Effective/Horizontal Center | 527mm |
| Top Tube Slope | 16.1deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 90mm |
| Bottom Bracket Drop | 77.5mm |
| Bottom Bracket Height | 261.5mm |
| Chainstay Length | 413mm |
| Chainstay Length Horizontal | 405.7mm |
| Front-Center | 580mm |
| Front-Center Horizontal | 575.3mm |
| Wheelbase | 981mm |
| Fork Offset/Rake | 50mm |
| Trail | 57.6mm mid/neutral |
| Mechanical Trail | 54.8mm |
| Wheel Flop | 16.9mm |
| Standover Height | 715.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 71mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 91.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1659mm |
| Crank Length | 170mm |
| Handlebar Width | 400mm |
| Stem Length | 70mm |
| 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/us/en/roubaix/p/128887?color=240079-128887