Argon 18 Sum Pro vs Bianchi Specialissima: 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 Bianchi Specialissima as a race geometry frame. Across matched sizes the Argon 18 Sum Pro and Bianchi Specialissima front ends are within a few millimetres of each other, so posture will depend more on cockpit setup than on the frame. Reach is nearly identical across matched sizes.
Switching from a Argon 18 Sum Pro?
Your closest Bianchi Specialissima size, and what will still feel different about the position.
| You ride the Argon 18 Sum Pro in | Take the Bianchi Specialissima in | The position will feel |
|---|---|---|
| XXS | 47 | 15 mm taller · 4 mm longer |
| XS | 50 | 1 mm taller · 4 mm longer |
| S | 53 | 4 mm taller · 2 mm shorter |
| M | 55 | 4 mm lower · 6 mm shorter |
| L | 59 | 6 mm taller · 5 mm shorter |
| XL | 59 | 21 mm lower · 14 mm shorterDifferent position |
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 Bianchi Specialissima 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 Bianchi Specialissima?
Across matched sizes the Argon 18 Sum Pro and Bianchi Specialissima 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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