	C1	C2	C3	C4	C5
Stack	633mm	642mm	651mm	660mm	669mm
Reach	438mm	457mm	476mm	495mm	514mm
Stack to Reach Ratio	1.45:1	1.4:1	1.37:1	1.33:1	1.3:1
Seat Tube Length, Unknown	378mm	380mm	425mm	441mm	465mm
Seat Tube Length, Effective Unknown	76mm	76mm	76mm	76.5mm	76.5mm
Top Tube Length, Effective/Horizontal Center	596mm	617mm	636mm	654mm	675mm
Head Tube Angle	64deg	64deg	64deg	64deg	64deg
Head Tube Length	100mm	110mm	120mm	130140mm	—
Bottom Bracket Drop	34mm	34mm	34mm	34mm	34mm
Bottom Bracket Height	338mm	338mm	338mm	338mm	338mm
Chainstay Length	450mm	450mm	450mm	456mm	456mm
Chainstay Length Horizontal	448.7mm	448.7mm	448.7mm	454.7mm	454.7mm
Front-Center	783mm	806mm	828mm	852mm	875.9mm
Front-Center Horizontal	782.3mm	805.3mm	827.3mm	851.3mm	875.3mm
Wheelbase	1231mm	1254mm	1276mm	1306mm	1330mm
Fork Offset/Rake	46.9mm	46.5mm	45.3mm	45.8mm	46.3mm
Trail	129.3mm very high	129.7mm very high	131.1mm very high	130.5mm very high	129.9mm very high
Mechanical Trail	116.2mm	116.6mm	117.8mm	117.3mm	116.7mm
Wheel Flop	50.9mm	51.1mm	51.6mm	51.4mm	51.2mm
Tire to Pedal Spindle	241.1mm 170 mm cranks	264mm 170 mm cranks	286mm 170 mm cranks	310mm 170 mm cranks	334mm 170 mm cranks
Pedal Spindle to Ground Clearance	168mm 170 mm cranks	168mm 170 mm cranks	168mm 170 mm cranks	168mm 170 mm cranks	168mm 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 Cotic Jeht Base 160 /150 mullet

Geometry