Giant Anthem Advanced 29 bike fit and size guide

Review the published geometry for the 2025 Giant Anthem Advanced 29, compare supported sizes, and open the TrainCraft calculator with this bike preselected.

Supported sizes

S, M, L, XL

Family

cross-country geometry

This bike is tuned around efficient climbing, technical handling, and a compact off-road cockpit.

What to compare

Stack, reach, setup

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

Open calculator with Giant Anthem Advanced 29 Open generic bike fit tool View original geometry source

Geometry and size breakdown

The calculator button opens the bike step with this model and size already selected. Then enter rider measurements and run the fit report.

Size	Stack	Reach	Top tube	Head tube	Stem	Crank	Fit calculator
S	589 mm	420 mm	572 mm	90 mm	60 mm	170 mm	Use in calculator
M	593 mm	450 mm	604 mm	95 mm	70 mm	175 mm	Use in calculator
L	603 mm	470 mm	626 mm	105 mm	70 mm	175 mm	Use in calculator
XL	612 mm	495 mm	653 mm	115 mm	70 mm	175 mm	Use in calculator

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 Giant Anthem Advanced 29.

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 Giant Anthem Advanced 29?

TrainCraft currently tracks these Giant Anthem Advanced 29 sizes: 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 Giant Anthem Advanced 29 sizing?

Yes. Open the calculator from this page to preload the Giant Anthem Advanced 29, then compare sizes against your body measurements, fit priorities, flexibility, and riding posture preferences.

What should I compare on the Giant Anthem Advanced 29 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.