Colnago Y1Rs Geometry, Sizes & Bike Fit

Colnago Y1Rs geometry (2026) — compare stack, reach, and every supported size, then open the TrainCraft calculator with this bike preselected.

Supported sizes

XS, S, M, L, XL

Family

race geometry

This bike leans toward an aggressive front end, faster steering, and a more performance-oriented position.

What to compare

Stack, reach, setup

Use this guide to compare stack, reach, and stock cockpit assumptions before choosing a frame size.

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

Quick size check

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.

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	495 mm	368 mm	500.6 mm	88.5 mm	80 mm	170 mm	Check with my measurements
S	520 mm	377 mm	521.2 mm	108.5 mm	90 mm	170 mm	Check with my measurements
M	540 mm	386 mm	540.8 mm	126.5 mm	90 mm	170 mm	Check with my measurements
L	565 mm	395 mm	560.2 mm	150.5 mm	100 mm	172.5 mm	Check with my measurements
XL	590 mm	404 mm	584.4 mm	176.5 mm	110 mm	172.5 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 Colnago Y1Rs.

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 Colnago Y1Rs?

TrainCraft currently tracks these Colnago Y1Rs sizes: XS, S, M, L, XL. The calculator uses each size's published geometry and stock cockpit assumptions to compare fit outcomes.

Can I use the TrainCraft calculator for Colnago Y1Rs sizing?

Yes. Open the calculator from this page to preload the Colnago Y1Rs, then compare sizes against your body measurements, fit priorities, flexibility, and riding posture preferences.

What should I compare on the Colnago Y1Rs 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.