Name: 2025/0017 JH17 China Grevil Base
Brand: JH17

	470	500	530	560
Stack	525mm	537mm	553mm	580mm
Reach	359mm	368mm	374mm	387mm
Stack to Reach Ratio	1.46:1	1.46:1	1.48:1	1.5:1
Seat Tube Length, C-C	433mm	450mm	466mm	495mm
Top Tube Length, Effective/Horizontal Center	514mm	532mm	548mm	575mm
Head Tube Angle	70deg	70.5deg	71deg	72deg
Seat Tube Angle	75deg	73deg	72.5deg	72deg
Head Tube Length	110mm	120mm	135mm	160mm
Bottom Bracket Drop	67mm	67mm	67mm	67mm
Bottom Bracket Height	286mm	286mm	286mm	286mm
Chainstay Length	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	414.6mm	414.6mm	414.6mm	414.6mm
Front-Center	592.2mm	600.1mm	607.1mm	619mm
Front-Center Horizontal	588.4mm	596.4mm	603.4mm	615.4mm
Wheelbase	1003mm	1011mm	1018mm	1030mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Trail	75.3mm high	72mm high	68.7mm high	62.1mm mid/neutral
Mechanical Trail	70.7mm	67.8mm	64.9mm	59.1mm
Wheel Flop	24.2mm	22.6mm	21.1mm	18.3mm
Tire to Pedal Spindle	69.2mm 170 mm cranks	77.1mm 170 mm cranks	84.1mm 170 mm cranks	96mm 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 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://a.aliexpress.com/_EGOP6Vk

2025/0017 JH17 China Grevil Base

Geometry