Brand chart
Giant Bike Size Chart
Giant uses alpha sizes across many road and gravel models. Start with the Giant height range, then check model geometry for TCR, Revolt, and similar bikes.
Enter your measurements to see your recommended size, backup size, confidence, and why it fits.
Sizing notes
Read the chart, then check the bike.
M/L is a useful middle size
Giant's M/L can help riders who sit between medium and large, but standover and reach still decide the fit.
TCR and Revolt do not feel identical
A road race bike and gravel bike can share a label while using different stack, reach, and tire clearance priorities.
Use geometry for close calls
If two Giant sizes both cover your height, compare reach and standover instead of choosing by label alone.
Giant road size chart
Size
XS
Height
155-165 cm
Inseam: 70-75 cm
Size
S
Height
163-173 cm
Inseam: 74-79 cm
Size
M
Height
171-180 cm
Inseam: 78-83 cm
Size
M/L
Height
178-186 cm
Inseam: 82-87 cm
Size
L
Height
184-192 cm
Inseam: 86-91 cm
Size
XL
Height
190-200 cm
Inseam: 90-96 cm
Giant Kids & Youth Wheel Sizes
FAQ
Short answers for choosing a size before purchase.
What Giant bike size do I need?
Start with the Giant height range for your bike type, then confirm inseam, standover, and reach.
Is Giant M/L the same as Trek M/L?
Not exactly. The labels can overlap, but each brand draws its ranges and geometry differently.