2020 idworx Bikes oPinion Base

	M (52)	L (56)	XL (60)	XXL (64)
Stack	606mm	634mm	672mm	712mm
Reach	415mm	410mm	410mm	410mm
Stack to Reach Ratio	1.46:1	1.55:1	1.64:1	1.74:1
Seat Tube Length, C-T	520mm	560mm	600mm	640mm
Top Tube Length, Effective/Horizontal Center	600mm	604mm	622mm	641mm
Top Tube Slope	10.8deg	9.7deg	9.6deg	9.7deg
Head Tube Angle	70.5deg	70.5deg	70.5deg	71deg
Seat Tube Angle	73.5deg	73deg	72.5deg	72deg
Head Tube Length	134mm	164mm	204mm	249mm
Bottom Bracket Drop	80mm	80mm	80mm	75mm
Bottom Bracket Height	288.2mm	288.2mm	288.2mm	293.2mm
Chainstay Length	463mm	463mm	463mm	463mm
Chainstay Length Horizontal	456mm	456mm	456mm	456.9mm
Front-Center	653.9mm	658.8mm	672.2mm	681.1mm
Front-Center Horizontal	649mm	653.9mm	667.4mm	676.9mm
Wheelbase	1105mm	1110mm	1123.4mm	1133.8mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Trail	82.6mm very high	82.6mm very high	82.6mm very high	79.2mm high
Mechanical Trail	77.9mm	77.9mm	77.9mm	74.9mm
Wheel Flop	26mm	26mm	26mm	24.4mm
Tire to Pedal Spindle	115.8mm 170 mm cranks	120.7mm 170 mm cranks	134mm 170 mm cranks	142.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	118.2mm 170 mm cranks	118.2mm 170 mm cranks	118.2mm 170 mm cranks	123.2mm 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://www.idworx-bikes.de/geometry

Geometry