2017 Ridley Bikes Helium X Base XL
Build
700C/29 in × 25 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Design deviates from other sizes of Ridley Bikes Helium X
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 625mm |
| Reach | 403mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 600mm |
| Seat Tube Length, C-C | 560mm |
| Top Tube Length, Effective/Horizontal Center | 600mm |
| Top Tube Length, Actual C-C | 582mm |
| Top Tube Slope | 7deg |
| Head Tube Angle | 74deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 227mm |
| Bottom Bracket Drop | 63mm |
| Bottom Bracket Height | 273mm |
| Chainstay Length | 408mm |
| Chainstay Length Horizontal | 403.1mm |
| Front-Center | 614.1mm |
| Front-Center Horizontal | 610.9mm |
| Wheelbase | 1014mm |
| Fork Offset/Rake | 44.9mm |
| Trail | 49.6mm mid/neutral |
| Mechanical Trail | 47.7mm |
| Wheel Flop | 13.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 108.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 103mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1686mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Source:ridley