Brand chart
GT Bike Size Chart
GT offers bicycles across Mountain, Gravel, Hybrid. Browse the official size charts below to find your recommended frame size based on height and inseam.
Official website →Sizing notes
Read the chart, then check the bike.
Start with category coverage
GT is listed for Mountain, Gravel, Hybrid. Choose the bike category first because road, gravel, mountain, and kids sizing use different assumptions.
Check data status
Data sourced from official brand references. Use the result as a shortlist, not a final fit decision.
Confirm the exact model
Model year, geometry, wheel size, and cockpit setup can change the final answer even when the height range looks right.
GT Mountain Bike Size Chart
Size
XS
Height
152-162 cm
Inseam: 67-73 cm
Size
S
Height
160-170 cm
Inseam: 72-78 cm
Size
M
Height
168-178 cm
Inseam: 77-83 cm
Size
L
Height
176-188 cm
Inseam: 82-89 cm
Size
XL
Height
186-198 cm
Inseam: 88-95 cm
GT Gravel Bike Size Chart
Size
XS
Height
155-164 cm
Inseam: 69-75 cm
Size
S
Height
162-172 cm
Inseam: 74-79 cm
Size
M
Height
170-180 cm
Inseam: 78-84 cm
Size
L
Height
178-189 cm
Inseam: 83-89 cm
Size
XL
Height
187-198 cm
Inseam: 88-95 cm
GT Hybrid Bike Size Chart
Size
XS
Height
153-163 cm
Inseam: 68-74 cm
Size
S
Height
161-172 cm
Inseam: 73-79 cm
Size
M
Height
170-181 cm
Inseam: 78-84 cm
Size
L
Height
179-190 cm
Inseam: 83-90 cm
Size
XL
Height
188-200 cm
Inseam: 89-96 cm
Popular Models & Reference Geometry
Sensor
2025 · Mountain
Stack: 620mm · Reach: 458mm
Force
2025 · Mountain
Stack: 632mm · Reach: 472mm
Zaskar
2025 · Mountain
Stack: 605mm · Reach: 440mm
Aggressor
2025 · Mountain
Stack: 615mm · Reach: 425mm
Grade
2025 · Gravel
Stack: 572mm · Reach: 380mm
FAQ
Short answers for choosing a size before purchase.
What GT bike size do I need?
Start with your height and the mountain chart on this page, then confirm inseam and exact GT model geometry before buying.
Is this GT chart official?
This page uses official brand chart data. Confirm with official brand charts before purchasing.