	43	47	51	55
Stack	564mm	591.6mm	616.7mm	640.5mm
Reach	360mm	373mm	380mm	392mm
Stack to Reach Ratio	1.57:1	1.59:1	1.62:1	1.63:1
Seat Tube Length, Unknown	430mm	470mm	510mm	550mm
Top Tube Length, Effective/Horizontal Unknown	512mm	535mm	560mm	579mm
Top Tube Slope	17.5deg	15.5deg	13.7deg	11.7deg
Head Tube Angle	69.5deg	70deg	71.5deg	71.5deg
Seat Tube Angle	75deg	74.5deg	73.5deg	73.5deg
Head Tube Length	125mm	140mm	160mm	185mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm
Bottom Bracket Height	274mm	274mm	274mm	274mm
Chainstay Length	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	443.7mm	443.7mm	443.7mm	443.7mm
Front-Center	598mm	617mm	620mm	636mm
Front-Center Horizontal	593.3mm	612.4mm	615.5mm	631.6mm
Wheelbase	1037mm	1056.1mm	1059.2mm	1075.3mm
Fork Offset/Rake	47.3mm	48.3mm	51.4mm	47.8mm
Trail	80mm very high	75.6mm high	62.6mm mid/neutral	66.4mm high
Mechanical Trail	75mm	71.1mm	59.3mm	63mm
Wheel Flop	26.3mm	24.3mm	18.8mm	20mm
Standover Height	720mm	755mm	790mm	822mm
Tire to Pedal Spindle	79mm 170 mm cranks	98mm 170 mm cranks	101mm 170 mm cranks	117mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 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://item.taobao.com/item.htm?id=862110140296

2026/v2 TQIQT Qianxun Base

Geometry