	S	M	L	XL
Stack	629.9mm	629.9mm	638.9mm	656.9mm
Reach	435mm	450mm	480mm	505mm
Stack to Reach Ratio	1.45:1	1.4:1	1.33:1	1.3:1
Seat Tube Length, C-T	390mm	400mm	420mm	450mm
Top Tube Length, Actual C-C	573.1mm	582.1mm	609.4mm	635.3mm
Top Tube Slope	25.7deg	24.1deg	21.9deg	19.9deg
Head Tube Angle	64deg	64deg	64deg	64deg
Seat Tube Angle	78deg	78deg	78deg	78deg
Head Tube Length	110mm	110mm	120mm	140mm
Bottom Bracket Drop	30mm	30mm	30mm	30mm
Bottom Bracket Height	344.5mm	344.5mm	344.5mm	344.5mm
Chainstay Length	437mm	437mm	437mm	437mm
Chainstay Length Horizontal	436mm	436mm	436mm	436mm
Front-Center	775.9mm	793.1mm	826.6mm	861.3mm
Front-Center Horizontal	775.3mm	792.5mm	826mm	860.7mm
Wheelbase	1211.3mm	1228.5mm	1262mm	1296.7mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length (Axle-To-Crown)	576mm	576mm	576mm	576mm
Trail	133.7mm very high	133.7mm very high	133.7mm very high	133.7mm very high
Mechanical Trail	120.2mm	120.2mm	120.2mm	120.2mm
Wheel Flop	52.7mm	52.7mm	52.7mm	52.7mm
Standover Height	752mm	751mm	748mm	748mm
Tire to Pedal Spindle	231.4mm 170 mm cranks	248.6mm 170 mm cranks	282.1mm 170 mm cranks	316.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	174.5mm 170 mm cranks	174.5mm 170 mm cranks	174.5mm 170 mm cranks	174.5mm 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

2026 Ari Bicycles (Fezzari) Wild Peak 3.0 Base

Geometry