2025 VeloBuild AeroGrav Base

	XS	XS	S	S	M	M	L	L	XL	XL
Stack	536mm	536mm	550mm	550mm	571mm	571mm	595mm	595mm	619mm	619mm
Reach	376mm	376mm	392mm	392mm	406mm	406mm	419mm	419mm	432mm	432mm
Stack to Reach Ratio	1.43:1	1.43:1	1.4:1	1.4:1	1.41:1	1.41:1	1.42:1	1.42:1	1.43:1	1.43:1
Seat Tube Length, C-T	475mm	475mm	500mm	500mm	520mm	520mm	550mm	550mm	575mm	575mm
Top Tube Length, Effective/Horizontal Center	525mm	—	550mm	—	570mm	—	590mm	—	615mm	—
Top Tube Length, Effective/Horizontal Unknown	—	525mm	—	550mm	—	570mm	—	590mm	—	615mm
Top Tube Slope	8.9deg	—	7.5deg	—	7.4deg	—	6.6deg	—	6.5deg	—
Head Tube Angle	71deg	71deg	71deg	71deg	71.5deg	71.5deg	71.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74.5deg	—	74deg	—	74deg	—	74deg	—	73.5deg	—
Effective Seat Tube Angle, Unknown	—	74.5deg	—	74deg	—	74deg	—	74deg	—	73.5deg
Head Tube Length	115mm	115mm	130mm	130mm	150mm	150mm	175mm	175mm	200mm	200mm
Bottom Bracket Drop	75mm	—	75mm	—	75mm	—	75mm	—	75mm	—
Bottom Bracket Height	286mm	—	286mm	—	286mm	—	286mm	—	286mm	—
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	418.3mm	—	418.3mm	—	418.3mm	—	418.3mm	—	418.3mm	—
Front-Center	592.4mm	—	613.3mm	—	629.2mm	—	650mm	—	670.9mm	—
Front-Center Horizontal	587.7mm	—	608.7mm	—	624.7mm	—	645.7mm	—	666.7mm	—
Wheelbase	1006mm	1006mm	1027mm	1027mm	1043mm	1043mm	1064mm	1064mm	1085mm	1085mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Trail	71.4mm high	64.5mm mid/neutral	71.4mm high	64.5mm mid/neutral	68.1mm high	61.4mm mid/neutral	68.1mm high	61.4mm mid/neutral	68.1mm high	61.4mm mid/neutral
Mechanical Trail	67.5mm	61mm	67.5mm	61mm	64.6mm	58.2mm	64.6mm	58.2mm	64.6mm	58.2mm
Wheel Flop	22mm	19.9mm	22mm	19.9mm	20.5mm	18.5mm	20.5mm	18.5mm	20.5mm	18.5mm
Tire to Pedal Spindle	61.4mm 170 mm cranks	— 170 mm cranks	82.3mm 170 mm cranks	— 170 mm cranks	98.2mm 170 mm cranks	— 170 mm cranks	119mm 170 mm cranks	— 170 mm cranks	139.9mm 170 mm cranks	— 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 170 mm cranks	— 170 mm cranks	116mm 170 mm cranks	— 170 mm cranks	116mm 170 mm cranks	— 170 mm cranks	116mm 170 mm cranks	— 170 mm cranks	116mm 170 mm cranks	— 170 mm cranks

	XS	XS	S	S	M	M	L	L	XL	XL
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	30mm	50mm	30mm	50mm	30mm	50mm	30mm	50mm	30mm
Tire Width Max	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Tire Outer Diameter	722mm	682mm	722mm	682mm	722mm	682mm	722mm	682mm	722mm	682mm
Bike Length with Tires	1728mm	1688mm	1749mm	1709mm	1765mm	1725mm	1786mm	1746mm	1807mm	1767mm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale

Category Trend

Progressive Gravel

Source:https://www.velobuild.com/products/2025-velobuild-carbon-fiber-racing-gravel-bike-frame

Suggest Bike Edit

2025 VeloBuild AeroGrav Base

Geometry

Base Build

Stack and Reach vs. Category Trend