2025 OG-EVKIN LOONG Base

	S	M	L	XL
Stack	520.4mm	534.2mm	555mm	568.2mm
Reach	368.7mm	377.8mm	387.9mm	395.5mm
Stack to Reach Ratio	1.41:1	1.41:1	1.43:1	1.44:1
Seat Tube Length, Unknown	440mm	460mm	480mm	500mm
Top Tube Length, Effective/Horizontal Center	515.2mm	528.2mm	546.4mm	561.1mm
Top Tube Slope	11.3deg	10.3deg	10.2deg	9.4deg
Head Tube Angle	71deg	72deg	72.5deg	72.5deg
Seat Tube Angle	74deg	74deg	73.8deg	73.5deg
Head Tube Length	119mm	130mm	150mm	163.8mm
Bottom Bracket Drop	68mm	68mm	68mm	68mm
Bottom Bracket Height	271mm	271mm	271mm	271mm
Chainstay Length	405mm	405mm	405mm	405mm
Chainstay Length Horizontal	399.3mm	399.3mm	399.3mm	399.3mm
Front-Center	574.3mm	577.7mm	588.7mm	600.5mm
Front-Center Horizontal	570.3mm	573.7mm	584.9mm	596.7mm
Wheelbase	969.5mm	972.9mm	984.1mm	995.9mm
Fork Offset/Rake	43.3mm	42.2mm	41.4mm	41.4mm
Fork Length, Unknown	375.4mm	375.4mm	375.4mm	375.4mm
Trail	71mm high	65.8mm high	63.5mm mid/neutral	63.5mm mid/neutral
Mechanical Trail	67.1mm	62.6mm	60.6mm	60.5mm
Wheel Flop	21.8mm	19.3mm	18.2mm	18.2mm
Tire to Pedal Spindle	65.3mm 170 mm cranks	68.7mm 170 mm cranks	79.7mm 170 mm cranks	91.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks

Published Sizing Recommendations

Height

160 cm

170 cm

171 cm

177 cm

178 cm

184 cm

185 cm

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://ogevkinbike.com/products/loong-road-frame-disc-brake?variant=41145827000476