Santa Cruz Stigmata 4 Geometry, Sizes & Bike Fit

Santa Cruz Stigmata 4 geometry (2025) — compare stack, reach, and every supported size, then open the TrainCraft calculator with this bike preselected.

Supported sizes

XS, S, M, L, XL, XXL

Family

all-road geometry

This bike balances stability, comfort, and efficient power transfer for mixed-surface riding.

What to compare

Stack, reach, setup

Use this guide to compare stack, reach, and gravel-specific front-end assumptions before choosing a frame size.

Check my size with measurements Compare geometry first View original geometry source

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.

Geometry and size breakdown

Use the geometry table as context, then enter your measurements above before opening the full fit report.

Size	Stack	Reach	Top tube	Head tube	Stem	Crank	Size check
XS	550 mm	375 mm	534 mm	90 mm	70 mm	167.5 mm	Check with my measurements
S	564 mm	390 mm	552 mm	105 mm	80 mm	170 mm	Check with my measurements
M	576 mm	405 mm	570 mm	120 mm	90 mm	172.5 mm	Check with my measurements
L	600 mm	420 mm	592 mm	145 mm	90 mm	172.5 mm	Check with my measurements
XL	612 mm	435 mm	610 mm	160 mm	100 mm	175 mm	Check with my measurements
XXL	631 mm	450 mm	631 mm	180 mm	100 mm	175 mm	Check with my measurements

How to use this guide

Start with the size table to narrow the geometry range you actually want. Then open the calculator to compare that geometry against your body dimensions, flexibility, and fit priorities.

The TrainCraft bike fit tool models saddle height, cockpit reach, and bar drop using the frame geometry plus stock cockpit assumptions for the Santa Cruz Stigmata 4.

That is more useful than a generic height chart because two sizes can both fit your height while requiring very different stems, spacers, or saddle positions.

FAQ

What sizes are available for the Santa Cruz Stigmata 4?

TrainCraft currently tracks these Santa Cruz Stigmata 4 sizes: XS, S, M, L, XL, XXL. The calculator uses each size's published geometry and stock cockpit assumptions to compare fit outcomes.

Can I use the TrainCraft calculator for Santa Cruz Stigmata 4 sizing?

Yes. Open the calculator from this page to preload the Santa Cruz Stigmata 4, then compare sizes against your body measurements, fit priorities, flexibility, and riding posture preferences.

What should I compare on the Santa Cruz Stigmata 4 before picking a size?

Start with stack, reach, effective top tube, and the stock stem/crank setup. TrainCraft uses those numbers to estimate cockpit reach, bar drop, saddle position, and how much adjustment headroom each size leaves.