Bike-on-Bike
Default Config
X Small
Default Config
Insights
Somewhat aggressive stack and reach vs trend of performance road bikes
Design deviates from other sizes of Ridley Bikes Helium X
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of XMCS Aero 2026
Geometry
Stack | 507mm | 509mm +2mm |
Reach | 379mm | 373mm -6mm |
Stack to Reach Ratio | 1.34:1 | 1.36:1 |
Seat Tube Length, C-T | 450mm | — |
Seat Tube Length, C-C | 410mm | — |
Seat Tube Length, Unknown | — | 480mm |
Top Tube Length, Effective/Horizontal Center | 515mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 514mm |
Top Tube Length, Actual C-C | 501mm | — |
Top Tube Slope | 8.2deg | 5.3deg -2.9deg |
Head Tube Angle | 71.8deg | 71deg -0.8deg |
Seat Tube Angle | 75deg | 74.5deg -0.5deg |
Head Tube Length | 107mm | 108.7mm +1.7mm |
Bottom Bracket Drop | 68mm | 70mm +2mm |
Bottom Bracket Height | 268mm | 269mm +1mm |
Chainstay Length | 405mm | 410mm +5mm |
Chainstay Length Horizontal | 399.3mm | 404mm +4.7mm |
Front-Center | 574.8mm | 573mm -1.8mm |
Front-Center Horizontal | 570.8mm | 572mm +1.2mm |
Wheelbase | 970mm | 976mm +6mm |
Fork Offset/Rake | 45mm | 45mm +0mm |
Fork Length, Unknown | — | 370mm |
Trail | 63.1mm mid/neutral | 69.1mm +6mm high |
Mechanical Trail | 59.9mm | 65.4mm +5.5mm |
Wheel Flop | 18.7mm | 21.3mm +2.6mm |
Tire to Pedal Spindle | 68.8mm 170 mm cranks | 64mm -4.8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 98mm 170 mm cranks | 99mm +1mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 25mm | 28mm +3mm |
Tire Outer Diameter | 672mm | 678mm +6mm |
Bike Length with Tires | 1642mm | 1654mm +12mm |
| 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 | Rim | Disc |
Meta
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| Source | ridley | https://www.instagram.com/p/DRxSz9fktyz/?hl=en-gb |
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