	52	56	60	64
Stack	584mm	603mm	624mm	645mm
Reach	376mm	383mm	389mm	399mm
Stack to Reach Ratio	1.55:1	1.57:1	1.6:1	1.62:1
Seat Tube Length, C-T	520mm	560mm	600mm	640mm
Top Tube Length, Effective/Horizontal Center	554mm	567mm	580mm	596mm
Top Tube Slope	9.3deg	7deg	5.1deg	3.2deg
Head Tube Angle	71deg	71deg	71.5deg	72deg
Seat Tube Angle	73deg	73deg	73deg	73deg
Head Tube Length	135mm	155mm	175mm	195mm
Bottom Bracket Drop	73mm	73mm	73mm	73mm
Bottom Bracket Height	288mm	288mm	288mm	288mm
Chainstay Length	460mm	460mm	460mm	460mm
Chainstay Length Horizontal	454.2mm	454.2mm	454.2mm	454.2mm
Front-Center	614.2mm	628.1mm	636mm	647mm
Front-Center Horizontal	609.8mm	623.8mm	631.8mm	642.8mm
Wheelbase	1064mm	1078mm	1086mm	1097mm
Fork Offset/Rake	55mm	55mm	55mm	55mm
Trail	66.1mm high	66.1mm high	62.8mm mid/neutral	59.5mm mid/neutral
Mechanical Trail	62.5mm	62.5mm	59.6mm	56.6mm
Wheel Flop	20.4mm	20.4mm	18.9mm	17.5mm
Standover Height	777mm	797mm	825mm	855mm
Tire to Pedal Spindle	83.2mm 170 mm cranks	97.1mm 170 mm cranks	105mm 170 mm cranks	116mm 170 mm cranks
Pedal Spindle to Ground Clearance	118mm 170 mm cranks	118mm 170 mm cranks	118mm 170 mm cranks	118mm 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:https://avaghon.nl/avaghon-s28/

2026 Avaghon S28 Base

Geometry