2025 Rivendell Atlantis vs 2025 Cervélo Áspero RX827
The 61 is the Cervélo Áspero RX827 size closest to your 55 Rivendell Atlantis. 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 Áspero RX827
Compared with the Rivendell Atlantis in 55, the Cervélo Áspero RX827 in 61 places the top of the head tube 8 mm higher and 6 mm further forward, relative to the bottom bracket.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- +6 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +1.6°
- Steeper: sharper steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Rivendell Atlantis numbers we have for size 55 are missing the chainstay length and wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Rivendell Atlantis 55 | Cervélo Áspero RX827 61 | Difference |
|---|---|---|---|
| Reach | 407 | 413 | +6 mm |
| Stack | 617 | 625 | +8 mm |
| Head tube angle | 70 | 71.6 | +1.6° |
| Seat tube angle | 72 | 72.6 | +0.6° |
| Effective top tube | not listed | 607 | |
| BB drop | 80 | 78 | −2 mm |
| Standover | not listed | 851 | |
| Seat tube length | 550 | not listed | |
| Chainstay length | not listed | 422.5 | |
| Wheelbase | not listed | 1064 | |
| Head tube length | not listed | 203 |
Differences are the Cervélo Áspero RX827 minus the Rivendell Atlantis. Full charts: 2025 Rivendell Atlantis, 2025 Cervélo Áspero RX827.
Where each sits in its class
Rivendell AtlantisCervélo Áspero RX827
Each bike is ranked against the other gravel 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 | Rivendell AtlantisAtlantis | Cervélo Áspero RX827GRX RX827 Di2 |
|---|---|---|
| Frame | Rivendell Atlantis | not listed |
| Fork | threaded | not listed |
| Cassette | not listed | Shimano GRX |
| Crankset | not listed | Shimano GRX |
| Wheelset | not listed | Reserve 40|44TA GR |
| Handlebar | not listed | Cervélo Carbon |
| Seatpost | not listed | Cervélo Carbon |
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