Argon 18 Sum Pro vs Colnago Y1Rs: geometry and fit comparison
Matched sizes, stack and reach deltas, and a fit check against your own body instead of guessing from two separate size charts.
The Argon 18 Sum Pro is built as a race geometry frame, the Colnago Y1Rs as a race geometry frame. The Colnago Y1Rs cockpit runs about 10 mm shorter, a noticeably more compact position. Across matched sizes the Argon 18 Sum Pro and Colnago Y1Rs front ends are within a few millimetres of each other, so posture will depend more on cockpit setup than on the frame.
Switching from a Argon 18 Sum Pro?
Your closest Colnago Y1Rs size, and what will still feel different about the position.
| You ride the Argon 18 Sum Pro in | Take the Colnago Y1Rs in | The position will feel |
|---|---|---|
| XXS | XS | 24 mm taller · 7 mm shorterDifferent position |
| XS | XS | 2 mm taller · 14 mm shorter |
| S | S | 4 mm taller · 12 mm shorter |
| M | M | 11 mm shorter |
| L | L | 10 mm shorter |
| XL | XL | 2 mm lower · 10 mm shorter |
Which one fits you better?
Run the same measurements through both frames. The likely size and the full fit report can differ more than the spec sheets suggest.
What Argon 18 Sum Pro size fits you?
Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.
No account needed for this check. The full report keeps this bike preselected.
What Colnago Y1Rs size fits you?
Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.
No account needed for this check. The full report keeps this bike preselected.
FAQ
Which has the taller front end: Argon 18 Sum Pro or Colnago Y1Rs?
Across matched sizes the Argon 18 Sum Pro and Colnago Y1Rs front ends are within a few millimetres of each other, so posture will depend more on cockpit setup than on the frame.
Can the same rider take different sizes on these two bikes?
Yes, and it happens often: frame labels are not standardized. Use the matched-size table for geometry, then run the fit check below with your own measurements for each bike.
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