What sizes does Giant offer?

Giant offers comprehensive sizing across road bike, mountain bike, hybrid bike, gravel bike, e-bike bikes. Each category has its own size chart based on the specific geometry and riding style. Use our size charts above to find your perfect Giant frame size based on your height and inseam measurements.

What if I'm between two Giant sizes?

If you're between sizes, consider your riding style and flexibility. For a more aggressive, aerodynamic position, choose the smaller size. For comfort and a more upright position, go with the larger size. Our bike size calculators can help you determine the best fit.

Are Giant bikes true to size?

Giant bikes are generally true to their published size charts. However, geometry varies between models - endurance bikes have taller stacks for comfort, while race bikes are more aggressive. Always check the specific model's geometry chart for the most accurate fit.

Where can I test ride Giant bikes?

Visit authorized Giant dealers to test ride bikes in person. You can find dealers through the official Giant website. Test riding is the best way to confirm your size before purchasing.

Giant Bike Size Chart

Size chart and fit guide for 2026

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Giant pioneered compact geometry in road bikes and uses their Total Fit system to match riders to frames. As the world's largest bicycle manufacturer, they offer extensive size ranges and develop women's-specific geometry through their Liv brand.

Giant Size Charts by Category

Giant Road Bike Size Chart

Size	Height Range	Inseam Range
XS	5'1" - 5'5"(155 - 165 cm)	27.6" - 29.5"(70 - 75 cm)
S	5'4" - 5'8"(163 - 173 cm)	29.1" - 31.1"(74 - 79 cm)
M	5'7" - 5'11"(171 - 180 cm)	30.7" - 32.7"(78 - 83 cm)
M/L	5'10" - 6'1"(178 - 186 cm)	32.3" - 34.3"(82 - 87 cm)
L	6'0" - 6'4"(184 - 192 cm)	33.9" - 35.8"(86 - 91 cm)
XL	6'3" - 6'7"(190 - 200 cm)	35.4" - 37.8"(90 - 96 cm)

Height: 5'1" – 5'5" (155–165 cm)

Inseam: 27.6" – 29.5" (70–75 cm)

Height: 5'4" – 5'8" (163–173 cm)

Inseam: 29.1" – 31.1" (74–79 cm)

Height: 5'7" – 5'11" (171–180 cm)

Inseam: 30.7" – 32.7" (78–83 cm)

M/L

Height: 5'10" – 6'1" (178–186 cm)

Inseam: 32.3" – 34.3" (82–87 cm)

Height: 6'0" – 6'4" (184–192 cm)

Inseam: 33.9" – 35.8" (86–91 cm)

Height: 6'3" – 6'7" (190–200 cm)

Inseam: 35.4" – 37.8" (90–96 cm)

Giant Mountain Bike Size Chart

Size	Height Range	Inseam Range
XS	4'11" - 5'3"(150 - 160 cm)	26.0" - 28.3"(66 - 72 cm)
S	5'2" - 5'7"(158 - 170 cm)	27.6" - 30.3"(70 - 77 cm)
M	5'6" - 5'10"(168 - 178 cm)	29.9" - 32.3"(76 - 82 cm)
L	5'9" - 6'2"(176 - 188 cm)	31.9" - 34.3"(81 - 87 cm)
XL	6'1" - 6'6"(186 - 198 cm)	33.9" - 36.6"(86 - 93 cm)

Height: 4'11" – 5'3" (150–160 cm)

Inseam: 26.0" – 28.3" (66–72 cm)

Height: 5'2" – 5'7" (158–170 cm)

Inseam: 27.6" – 30.3" (70–77 cm)

Height: 5'6" – 5'10" (168–178 cm)

Inseam: 29.9" – 32.3" (76–82 cm)

Height: 5'9" – 6'2" (176–188 cm)

Inseam: 31.9" – 34.3" (81–87 cm)

Height: 6'1" – 6'6" (186–198 cm)

Inseam: 33.9" – 36.6" (86–93 cm)

Giant Hybrid Bike Size Chart

Size	Height Range	Inseam Range
XS	4'11" - 5'3"(150 - 160 cm)	26.0" - 28.3"(66 - 72 cm)
S	5'2" - 5'6"(158 - 168 cm)	27.6" - 29.9"(70 - 76 cm)
M	5'5" - 5'9"(166 - 176 cm)	29.5" - 31.9"(75 - 81 cm)
L	5'9" - 6'1"(174 - 186 cm)	31.5" - 33.9"(80 - 86 cm)
XL	6'0" - 6'6"(184 - 198 cm)	33.5" - 36.6"(85 - 93 cm)

Height: 4'11" – 5'3" (150–160 cm)

Inseam: 26.0" – 28.3" (66–72 cm)

Height: 5'2" – 5'6" (158–168 cm)

Inseam: 27.6" – 29.9" (70–76 cm)

Height: 5'5" – 5'9" (166–176 cm)

Inseam: 29.5" – 31.9" (75–81 cm)

Height: 5'9" – 6'1" (174–186 cm)

Inseam: 31.5" – 33.9" (80–86 cm)

Height: 6'0" – 6'6" (184–198 cm)

Inseam: 33.5" – 36.6" (85–93 cm)

Giant Gravel Bike Size Chart

Size	Height Range	Inseam Range
XS	5'1" - 5'5"(155 - 165 cm)	27.6" - 29.5"(70 - 75 cm)
S	5'4" - 5'8"(163 - 173 cm)	29.1" - 31.1"(74 - 79 cm)
M	5'7" - 5'11"(171 - 180 cm)	30.7" - 32.7"(78 - 83 cm)
M/L	5'10" - 6'1"(178 - 186 cm)	32.3" - 34.3"(82 - 87 cm)
L	6'0" - 6'5"(184 - 196 cm)	33.9" - 36.2"(86 - 92 cm)

Height: 5'1" – 5'5" (155–165 cm)

Inseam: 27.6" – 29.5" (70–75 cm)

Height: 5'4" – 5'8" (163–173 cm)

Inseam: 29.1" – 31.1" (74–79 cm)

Height: 5'7" – 5'11" (171–180 cm)

Inseam: 30.7" – 32.7" (78–83 cm)

M/L

Height: 5'10" – 6'1" (178–186 cm)

Inseam: 32.3" – 34.3" (82–87 cm)

Height: 6'0" – 6'5" (184–196 cm)

Inseam: 33.9" – 36.2" (86–92 cm)

Giant E-Bike Size Chart

Size	Height Range	Inseam Range
S	5'1" - 5'7"(155 - 170 cm)	28.0" - 30.7"(71 - 78 cm)
M	5'6" - 5'11"(168 - 180 cm)	30.3" - 32.7"(77 - 83 cm)
L	5'10" - 6'3"(178 - 190 cm)	32.3" - 35.0"(82 - 89 cm)
XL	6'2" - 6'7"(188 - 200 cm)	34.6" - 37.4"(88 - 95 cm)

Height: 5'1" – 5'7" (155–170 cm)

Inseam: 28.0" – 30.7" (71–78 cm)

Height: 5'6" – 5'11" (168–180 cm)

Inseam: 30.3" – 32.7" (77–83 cm)

Height: 5'10" – 6'3" (178–190 cm)

Inseam: 32.3" – 35.0" (82–89 cm)

Height: 6'2" – 6'7" (188–200 cm)

Inseam: 34.6" – 37.4" (88–95 cm)

Popular Giant Models & Sizing Notes

Specific sizing recommendations for Giant's most popular bike models. Geometry measurements shown for reference size (typically M or 54cm).

TCR Advanced

🚴 Road Bike • 2024

$3,000 - $12,000

Pure race bike with aggressive geometry. Compact frame design pioneered by Giant allows for optimal stiffness and lighter weight.

Stack: 532mmReach: 390mm

Defy Advanced

🚴 Road Bike • 2024

$2,500 - $8,500

Endurance road bike with D-Fuse seatpost for comfort. More upright position suits long-distance riding.

Stack: 575mmReach: 375mm

Trance X

🚵 Mountain Bike • 2024

$3,200 - $7,500

Trail bike with 135mm rear travel. Maestro suspension system provides excellent traction; riders often size down for aggressive riding.

Stack: 615mmReach: 455mm

Revolt Advanced

🏔️ Gravel Bike • 2024

$2,800 - $6,500

Versatile gravel bike with D-Fuse handlebar and seatpost. Geometry balances stability and agility for mixed terrain.

Stack: 580mmReach: 378mm

Trance X E+ 1

⚡ E-Bike • 2025

$5,500 - $8,000

Full-suspension e-MTB with Yamaha SyncDrive Pro3 motor and 800Wh EnergyPak battery. 150mm rear and 160mm front travel with Maestro suspension-the battery-low design keeps weight centered, so sizing follows standard Trance recommendations.

Stack: 620mmReach: 462mm

Explore E+ 1

⚡ E-Bike • 2025

$4,000 - $5,500

E-adventure bike designed for touring and mixed-surface riding with Yamaha SyncDrive Sport motor and 500Wh battery. Relaxed geometry with clearance for 50mm tires-available in traditional and low-step frames for easy mounting.

Stack: 625mmReach: 385mm

Fastroad E+ EX

⚡ E-Bike • 2025

$2,800 - $4,000

Fitness-focused flat-bar e-bike with Yamaha SyncDrive Core motor and 500Wh battery. Sporty geometry bridges the gap between road and hybrid-riders seeking speed with assist should size as they would for Giant's road bikes.

Stack: 595mmReach: 392mm

Giant Sizing Tips

How to Measure

• Height: Stand barefoot against a wall and measure from floor to top of head
• Inseam: Stand with feet 6 inches apart, measure from floor to crotch
• Arm Reach: For road bikes, measure from shoulder to fingertips

When Between Sizes

• Comfort priority: Choose the larger size
• Performance priority: Choose the smaller size
• Long torso: Size up for better reach
• Long legs: Size down for better standover

Giant Sizing FAQ

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3 Year Olds Sizing Guide

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5 Year Olds Sizing Guide

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Find Your Giant Size

Use our free calculators and guides to determine your ideal Giant frame size.

Road Bike Calculator

Calculate your Giant road bike size

Mountain Bike Calculator

Find your ideal MTB frame size

General Calculator

Universal bike sizing tool

Saddle Size Calculator

Find your ideal saddle width

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