2015 Norco Bicycles Aurum Base

	S	M	L
Stack	585mm	585mm	585mm
Reach	394mm	421mm	448mm
Stack to Reach Ratio	1.48:1	1.39:1	1.31:1
Seat Tube Length, Unknown	415mm	435mm	455mm
Top Tube Length, Effective/Horizontal Unknown	585mm	617mm	649mm
Top Tube Slope	20.4deg	17.9deg	15.6deg
Head Tube Angle	63deg	63deg	63deg
Seat Tube Angle	61.4deg	61.4deg	61.4deg
Head Tube Length	110mm	110mm	110mm
Bottom Bracket Drop	0mm	0mm	0mm
Bottom Bracket Height	340.5mm	340.5mm	340.5mm
Chainstay Length	420mm	425mm	430mm
Chainstay Length Horizontal	420mm	425mm	430mm
Front-Center	740mm	767mm	794mm
Front-Center Horizontal	740mm	767mm	794mm
Wheelbase	1160mm	1192mm	1224mm
Fork Offset/Rake	42.7mm	42.7mm	42.7mm
Fork Length, Unknown	568mm	568mm	568mm
Trail	125.6mm very high	125.6mm very high	125.6mm very high
Mechanical Trail	111.9mm	111.9mm	111.9mm
Wheel Flop	50.8mm	50.8mm	50.8mm
Standover Height	796mm	781.4mm	762.6mm
Tire to Pedal Spindle	229.5mm 170 mm cranks	256.5mm 170 mm cranks	283.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	170.5mm 170 mm cranks	170.5mm 170 mm cranks	170.5mm 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.norco.com/bike-archives/2015/aurum-62/

Geometry