2015 Norco Bicycles Threshold A1

	48	50.0	53	55.5	58	60.5
Stack	523mm	534mm	552mm	569mm	589mm	609mm
Reach	367mm	372mm	379mm	389mm	398mm	407mm
Stack to Reach Ratio	1.43:1	1.44:1	1.46:1	1.46:1	1.48:1	1.5:1
Seat Tube Length, Unknown	480mm	505mm	530mm	555mm	580mm	605mm
Top Tube Length, Effective/Horizontal Center	507.5mm	520mm	537.5mm	555mm	572.5mm	590mm
Top Tube Slope	6.9deg	5.3deg	4.6deg	3.8deg	3.3deg	2.9deg
Head Tube Angle	70deg	70.5deg	71.5deg	72.25deg	72.5deg	72.75deg
Seat Tube Angle	75deg	74.5deg	74deg	73.75deg	73.5deg	73.25deg
Head Tube Length	105mm	115mm	130mm	145mm	165mm	185mm
Bottom Bracket Drop	67.5mm	67.5mm	67.5mm	67.5mm	67.5mm	67.5mm
Bottom Bracket Height	278.5mm	278.5mm	278.5mm	278.5mm	278.5mm	278.5mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419.6mm	419.6mm	419.6mm	419.6mm	419.6mm	419.6mm
Front-Center	585mm	589mm	593mm	601mm	613mm	626mm
Front-Center Horizontal	580.4mm	584.4mm	588.4mm	596.4mm	609.4mm	621.4mm
Wheelbase	1000mm	1004mm	1008mm	1016mm	1029mm	1041mm
Fork Offset/Rake	44.7mm	44.5mm	44.8mm	44.6mm	44.8mm	44.2mm
Fork Length (On-Axis)	395mm	395mm	395mm	395mm	395mm	395mm
Trail	78.3mm high	75.3mm high	68.5mm high	63.9mm mid/neutral	62.1mm mid/neutral	61.2mm mid/neutral
Mechanical Trail	73.6mm	71mm	65mm	60.9mm	59.3mm	58.4mm
Wheel Flop	25.2mm	23.7mm	20.6mm	18.6mm	17.8mm	17.3mm
Standover Height	749mm	765mm	784mm	804mm	825mm	846mm
Tire to Pedal Spindle	69mm 170 mm cranks	73mm 170 mm cranks	74.5mm 172.5 mm cranks	82.5mm 172.5 mm cranks	92mm 175 mm cranks	105mm 175 mm cranks
Pedal Spindle to Ground Clearance	108.5mm 170 mm cranks	108.5mm 170 mm cranks	106mm 172.5 mm cranks	106mm 172.5 mm cranks	103.5mm 175 mm cranks	103.5mm 175 mm cranks

	48	50.0	53	55.5	58	60.5
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	35mm	35mm	35mm	35mm	35mm	35mm
Tire Outer Diameter	692mm	692mm	692mm	692mm	692mm	692mm
Bike Length with Tires	1692mm	1696mm	1700mm	1708mm	1721mm	1733mm
Crank Length	170mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	420mm	420mm	440mm	440mm	440mm	440mm
Stem Length	90mm	90mm	100mm	100mm	110mm	110mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Cyclocross

Source:https://www.norco.com/bike-archives/2015/threshold-a1/

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2015 Norco Bicycles Threshold A1

Geometry

A1 Build

Stack and Reach vs. Category Trend