2026 Specialized Aethos 2 Pro vs 2026 Colnago V4Rs Shimano
The Colnago V4Rs Shimano size closest to your 54 is the 51. Compare the 51 instead
What changes on the Colnago V4Rs Shimano
- Frame stack
- +14 mm
- Higher front end
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +155 mm
- Longer: steadier at speed
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Aethos 2 Pro is drawn. The Colnago V4Rs Shimano numbers we have for size 510 are missing the reach, head angle, seat angle and chainstay length.
Geometry side by side
| Measurement | Specialized Aethos 2 Pro 54 | Colnago V4Rs Shimano 510 | Difference |
|---|---|---|---|
| Reach | 384 | not listed | |
| Stack | 559 | 573 | +14 mm |
| Head tube angle | 72.5 | not listed | |
| Seat tube angle | 74 | not listed | |
| Effective top tube | 544 | 618 | +74 mm |
| Chainstay length | 410 | not listed | |
| Wheelbase | 992 | 1147 | +155 mm |
| BB drop | 75 | not listed | |
| Head tube length | 150 | not listed | |
| Seat tube length | not listed | 464 |
Differences are the Colnago V4Rs Shimano minus the Specialized Aethos 2 Pro. Full charts: 2026 Specialized Aethos 2 Pro, 2026 Colnago V4Rs Shimano.
Where each sits in its class
Specialized Aethos 2 ProColnago V4Rs Shimano
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 | Specialized Aethos 2 ProPro | Colnago V4Rs ShimanoShimano Dura-Ace Di2 |
|---|---|---|
| Frame | Specialized Aethos 2 | Colnago V4Rs |
| Shifter | SRAM Force AXS E1 | Shimano Dura Ace Di2 |
| Derailleur | SRAM Force AXS E1 | Shimano Dura-Ace Di2, Shimano RD-9250 Dura-Ace Di2 |
| Cassette | SRAM Force | Shimano Dura-Ace |
| Chain | SRAM Force D1 | Shimano Dura-Ace |
| Crankset | SRAM Force E1 XPLR 1x | Shimano Dura-Ace |
| Chainring | SRAM Force E1 | Shimano Dura-Ace, Shimano Dura-Ace R9200 |
| Bottom bracket | SRAM DUB GX | CeramicSpeed T47 |
| Wheelset | Roval Alpinist CL II | Shimano Dura-Ace C50 |
| Tire | Specialized Turbo TLR Race | Pirelli P Zero Race |
| Brake | SRAM Force E1 | Shimano Dura-Ace Di2, Shimano Dura-Ace 9270 Di2 |
| Rotor | SRAM Force E1 | Shimano CL900 |
| Handlebar | Roval Alpinist Cockpit II | Colnago CC.01 |
| Stem | Roval Alpinist Cockpit II | Colnago CC.01 |
| Grips | Supacaz Super Sticky Kush | not listed |
| Seatpost | Roval Alpinist Carbon S-Works | Colnago D-shape carbon |
| Saddle | Specialized Power Pro Mirror | Prologo Scratch M5 CPC |
| Fork | not listed | Colnago carbon fork |
| Bar tape | not listed | Colnago Grip |
| Headset | not listed | CeramicSpeed SLT |
| Bottle cage | not listed | Colnago bottle cage |
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