2017 Trek Émonda ALR Frameset vs 2019 Cervélo R5 Base
The 58 is the Cervélo R5 Base size closest to your 47 Trek Émonda ALR Frameset. 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 R5 Base
Compared with the Trek Émonda ALR Frameset in 47, the Cervélo R5 Base in 58 places the top of the head tube 74 mm higher and 30 mm further forward, relative to the bottom bracket. Its wheelbase is 37 mm longer, which can contribute to stability at speed.
- Frame stack
- +74 mm
- Higher front end
- Frame reach
- +30 mm
- Longer frame reach
- Wheelbase
- +37 mm
- Longer: steadier at speed
- Head angle
- +1.8°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Émonda ALR Frameset numbers we have for size 47 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Émonda ALR Frameset 47 | Cervélo R5 Base 58 | Difference |
|---|---|---|---|
| Reach | 369 | 399 | +30 mm |
| Stack | 522 | 596 | +74 mm |
| Head tube angle | 71.2° | 73 | +1.8° |
| Effective top tube | 513 | 581 | +68 mm |
| Chainstay length | 410 | 410 | ±0 mm |
| Wheelbase | 974 | 1011 | +37 mm |
| BB drop | 72 | 69.5 | −3 mm |
| Standover | 698 | 815 | +117 mm |
| Seat tube length | 444 | not listed | |
| Head tube length | 115 | 178 | +63 mm |
| Seat tube angle | not listed | 73 |
Differences are the Cervélo R5 Base minus the Trek Émonda ALR Frameset. Full charts: 2017 Trek Émonda ALR Frameset, 2019 Cervélo R5 Base.
Where each sits in its class
Trek Émonda ALR FramesetCervélo R5 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 ALR FramesetALR Frameset | Cervélo R5 Base |
|---|---|---|
| Frame | Trek Ultralight 300 | not listed |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
