2018 Trek Émonda ALR vs 2020 Cervélo S3 Base
The 54 is the Cervélo S3 Base size closest to your 54 Trek Émonda ALR. 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 S3 Base
Compared with the Trek Émonda ALR in 54, the Cervélo S3 Base in 54 places the top of the head tube at about the same height and 3 mm further back, relative to the bottom bracket. Its wheelbase is 8 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −8 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Émonda ALR numbers we have for size 54 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Émonda ALR 54 | Cervélo S3 Base 54 | Difference |
|---|---|---|---|
| Reach | 381 | 378 | −3 mm |
| Stack | 555 | 555 | ±0 mm |
| Head tube angle | 73.0° | 73 | ±0.0° |
| Effective top tube | 543 | not listed | |
| Chainstay length | 410 | 405 | −5 mm |
| Wheelbase | 981 | 973.3 | −8 mm |
| BB drop | 70 | 70 | ±0 mm |
| Standover | 742 | 771.5 | +30 mm |
| Seat tube length | 486 | not listed | |
| Head tube length | 155 | 147.2 | −8 mm |
| Seat tube angle | not listed | 73 |
Differences are the Cervélo S3 Base minus the Trek Émonda ALR. Full charts: 2018 Trek Émonda ALR, 2020 Cervélo S3 Base.
Where each sits in its class
Trek Émonda ALRCervélo S3 Base
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 | Trek Émonda ALRALR 4 | Cervélo S3 BaseBase |
|---|---|---|
| Frame | Trek Ultralight 300 | Cervélo S3 |
| Shifter | Shimano Tiagra | Shimano Ultegra |
| Derailleur | Shimano Tiagra | Shimano Ultegra mechanical |
| Cassette | Shimano Tiagra | Shimano Ultegra |
| Chain | Shimano Tiagra | Shimano HG-X11 Ultegra |
| Crankset | Shimano Tiagra | Shimano Ultegra |
| Bottom bracket | Trek BB86.5 | not listed |
| Tire | Bontrager R1 Hard-Case Lite | Continental Grand Prix |
| Brake | Shimano Tiagra | Shimano Ultegra |
| Handlebar | Bontrager VR-C | Cervélo AB09 |
| Saddle | Bontrager Montrose | Prologo Dimension |
| Fork | not listed | Cervélo S3 carbon |
| Chainring | not listed | Shimano Ultegra |
| Wheelset | not listed | DT Swiss P1800 Spline |
| Rotor | not listed | Shimano Ultegra |
| Stem | not listed | Cervélo ST29 |
| Headset | not listed | FSA integrated |
| Seatpost | not listed | Cervélo SP20 |
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