2025 velobuild gravel Base

	xs	s	m	l	xl
Stack	536mm	550mm	571mm	595mm	619mm
Reach	376mm	392mm	406mm	419mm	432mm
Stack to Reach Ratio	1.43:1	1.4:1	1.41:1	1.42:1	1.43:1
Seat Tube Length, Unknown	475mm	500mm	520mm	550mm	575mm
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	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74.5deg	74deg	74deg	74deg	73.5deg
Head Tube Length	115mm	130mm	150mm	175mm	200mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	276mm	276mm	276mm	276mm	276mm
Chainstay Length	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	1027mm	1043mm	1064mm	1085mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Trail	68mm high	68mm high	64.7mm mid/neutral	64.7mm mid/neutral	64.7mm mid/neutral
Mechanical Trail	64.3mm	64.3mm	61.4mm	61.4mm	61.4mm
Wheel Flop	20.9mm	20.9mm	19.5mm	19.5mm	19.5mm
Tire to Pedal Spindle	71.4mm 170 mm cranks	92.3mm 170 mm cranks	108.2mm 170 mm cranks	129mm 170 mm cranks	149.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks

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.

Category Trend

Source:1

Geometry