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3T Extrema Italia vs Santa Cruz Stigmata 4: 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.

2026all-road geometry
3T Extrema Italia
4 sizes: S, M, L, XL
Full size guide
2025all-road geometry
Santa Cruz Stigmata 4
6 sizes: XS, S, M, L, XL, XXL
Full size guide
In one look

The 3T Extrema Italia is built as a all-road geometry frame, the Santa Cruz Stigmata 4 as a all-road geometry frame. Across matched sizes, the 3T Extrema Italia stack sits about 20 mm taller than the Santa Cruz Stigmata 4, which generally means a more upright position before spacers. The Santa Cruz Stigmata 4 cockpit runs about 14 mm longer, a noticeably more stretched position.

For the 3T Extrema Italia in XL there is no Santa Cruz Stigmata 4 size with a comparable position: the range simply does not reach there.

Switching from a 3T Extrema Italia?

Your closest Santa Cruz Stigmata 4 size, and what will still feel different about the position.

You ride the 3T Extrema Italia inTake the Santa Cruz Stigmata 4 inThe position will feel
SXS3 mm taller · 17 mm longer
MXS20 mm lower · 7 mm longerDifferent position
LS26 mm lower · 14 mm longerDifferent 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.

Quick size check

What 3T Extrema Italia 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.

Quick size check

What Santa Cruz Stigmata 4 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: 3T Extrema Italia or Santa Cruz Stigmata 4?

Across matched sizes, the 3T Extrema Italia stack sits about 20 mm taller than the Santa Cruz Stigmata 4, which generally means a more upright position before spacers.

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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