	S	S	SM	M	M	MD	MD
Stack	554mm	554mm	561mm	563mm	563mm	572mm	572mm
Reach	376mm	376mm	383mm	383mm	383mm	389mm	389mm
Stack to Reach Ratio	1.47:1	1.47:1	1.46:1	1.47:1	1.47:1	1.47:1	1.47:1
Seat Tube Length, C-T	480mm	480mm	530mm	500mm	500mm	560mm	560mm
Top Tube Length, Effective/Horizontal Unknown	540mm	540mm	554mm	550mm	550mm	564mm	564mm
Top Tube Slope	10.4deg	10.4deg	5.8deg	9.1deg	9.1deg	3.8deg	3.8deg
Head Tube Angle	71.5deg	71.5deg	71.5deg	71.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	73.5deg	73.5deg	73deg	73.5deg	73.5deg	73deg	73deg
Head Tube Length	130mm	130mm	136mm	140mm	140mm	136mm	148mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	301mm	301mm	286mm	281mm	281mm	276mm	286mm
Chainstay Length	435mm	435mm	432mm	435mm	435mm	432mm	432mm
Chainstay Length Horizontal	429.3mm	429.3mm	426.3mm	429.3mm	429.3mm	426.3mm	426.3mm
Front-Center	597mm	597mm	600.9mm	606.8mm	606.8mm	610.6mm	610.6mm
Front-Center Horizontal	592.7mm	592.7mm	596.9mm	602.8mm	602.8mm	606.5mm	606.5mm
Wheelbase	1022mm	1022mm	1023.1mm	1032.1mm	1032.1mm	1032.8mm	1032.8mm
Fork Offset/Rake	52mm	52mm	47mm	52mm	52mm	47mm	47mm
Fork Length, Unknown	400mm	400mm	395mm	400mm	400mm	395mm	395mm
Trail	69.3mm high	69.3mm high	69.6mm high	62.6mm mid/neutral	62.6mm mid/neutral	66.2mm high	69.6mm high
Mechanical Trail	65.7mm	65.7mm	66mm	59.4mm	59.4mm	62.8mm	66mm
Wheel Flop	20.9mm	20.9mm	20.9mm	18.8mm	18.8mm	19.9mm	20.9mm
Tire to Pedal Spindle	56mm 170 mm cranks	56mm 170 mm cranks	74.9mm 170 mm cranks	85.8mm 170 mm cranks	85.8mm 170 mm cranks	94.6mm 170 mm cranks	84.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	131mm 170 mm cranks	131mm 170 mm cranks	116mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	106mm 170 mm cranks	116mm 170 mm cranks

	S	S	SM	M	M	MD	MD
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
Tire Width	60mm	60mm	45mm	40mm	40mm	35mm	45mm
Tire Outer Diameter	742mm	742mm	712mm	702mm	702mm	692mm	712mm
Bike Length with Tires	1764mm	1764mm	1735.1mm	1734.1mm	1734.1mm	1724.8mm	1744.8mm

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

All-road/Gravel

Source:www.waltlyti.com, n/a, www.waltlyti.com

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2025 M Waltly 3D Gravel Base

Geometry

Base Build

Stack and Reach vs. Category Trend