	S	M	L	XL
Stack	593mm	602mm	612mm	625mm
Reach	395mm	426mm	448mm	474mm
Stack to Reach Ratio	1.5:1	1.41:1	1.37:1	1.32:1
Seat Tube Length, Unknown	400mm	445mm	483mm	533mm
Top Tube Length, Effective/Horizontal Unknown	559mm	593mm	618mm	647mm
Top Tube Slope	22.5deg	17.6deg	14.3deg	10.2deg
Head Tube Angle	68deg	68deg	68deg	68deg
Seat Tube Angle	74.5deg	74.5deg	74.5deg	74.5deg
Head Tube Length	90mm	100mm	110mm	125mm
Bottom Bracket Drop	61mm	61mm	61mm	61mm
Bottom Bracket Height	311mm	311mm	311mm	311mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	425.7mm	425.7mm	425.7mm	425.7mm
Front-Center	664mm	695mm	717mm	743mm
Front-Center Horizontal	657.4mm	692.4mm	718.4mm	749.4mm
Wheelbase	1083mm	1118mm	1144mm	1175mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length, Unknown	500.8mm	500.8mm	500.8mm	500.8mm
Trail	102.8mm very high	102.8mm very high	102.8mm very high	102.8mm very high
Mechanical Trail	95.3mm	95.3mm	95.3mm	95.3mm
Wheel Flop	35.7mm	35.7mm	35.7mm	35.7mm
Tire to Pedal Spindle	122mm 170 mm cranks	153mm 170 mm cranks	175mm 170 mm cranks	201mm 170 mm cranks
Pedal Spindle to Ground Clearance	141mm 170 mm cranks	141mm 170 mm cranks	141mm 170 mm cranks	141mm 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 LightCycling MF03 29x2.4

Geometry