2023 Ridley Noah Fast Disc Shimano vs 2023 Cervélo S5
The 51 is the Cervélo S5 size closest to your XS Ridley Noah Fast Disc Shimano. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Cervélo S5
Compared with the Ridley Noah Fast Disc Shimano in XS, the Cervélo S5 in 51 places the top of the head tube 3 mm higher and about as far forward, relative to the bottom bracket.
- Frame stack
- +3 mm
- Higher front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Ridley Noah Fast Disc Shimano, XSCervélo S5, 51Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Ridley Noah Fast Disc Shimano XS | Cervélo S5 51 | Difference |
|---|---|---|---|
| Reach | 378 | 376 | −2 mm |
| Stack | 516 | 519 | +3 mm |
| Head tube angle | 72 | 72 | ±0.0° |
| Seat tube angle | 74 | 73 | −1.0° |
| Chainstay length | 405 | 405 | ±0 mm |
| Wheelbase | 975 | 974 | −1 mm |
| BB drop | 68 | 72.5 | +5 mm |
| Standover | 754 | 736 | −18 mm |
| Seat tube length | 455 | not listed | |
| Effective top tube | not listed | 535 | |
| Head tube length | not listed | 87 |
Differences are the Cervélo S5 minus the Ridley Noah Fast Disc Shimano. Full charts: 2023 Ridley Noah Fast Disc Shimano, 2023 Cervélo S5.
Where each sits in its class
Ridley Noah Fast Disc ShimanoCervélo S5
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Ridley Noah Fast Disc ShimanoDisc Shimano Ultegra Di2 | Cervélo S5 |
|---|---|---|
| Frame | Ridley Noah Fast Disc | not listed |
| Shifter | Shimano Ultegra | not listed |
| Derailleur | Shimano Ultegra | not listed |
| Cassette | Shimano Ultegra | not listed |
| Crankset | Shimano Ultegra Mid Compact | not listed |
| Chainring | Shimano Ultegra | not listed |
| Wheelset | 4za Vardar 50 | not listed |
| Tire | Vittoria Corsa G2.0 | not listed |
| Brake | Shimano Ultegra | not listed |
| Handlebar | Forza Aero Integrated | not listed |
| Seatpost | Forza Aero | not listed |
| Saddle | Selle Italia SLR Boost Elite | not listed |
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