2021 Specialized Bicycles Roubaix Sport Base 54
Build
700C/29 in × 30 mm
Insights
Average stack and reach vs trend of endurance road bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 577mm |
| Reach | 378mm |
| Stack to Reach Ratio | 1.53:1 |
| Seat Tube Length, Unknown | 480mm |
| Top Tube Length, Actual C-C | 543mm |
| Top Tube Slope | 12.8deg |
| Head Tube Angle | 72.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 155mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 263mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 407.6mm |
| Front-Center | 592.6mm |
| Front-Center Horizontal | 587.4mm |
| Wheelbase | 995mm |
| Fork Offset/Rake | 49.7mm |
| Trail | 55.5mm mid/neutral |
| Mechanical Trail | 52.9mm |
| Wheel Flop | 15.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 81.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 93mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 30mm |
| Tire Outer Diameter | 682mm |
| Bike Length with Tires | 1677mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:CHAT GPT