Which size or configuration labels have geometry for the 2018 Norco Threshold A Single Speed?

Geometry is listed for 48, 50.5, 53, 55.5, 58, and 60.5.

What are the reach and stack of the 2018 Norco Threshold A Single Speed in size 55.5?

In size 55.5, reach is 386 mm and stack is 570 mm.

What is the head tube angle of the 2018 Norco Threshold A Single Speed?

The head tube angle is 72 degrees in size 55.5.

What does the 2018 Norco Threshold A Single Speed ship with?

The stock build includes KMC K610HX Nickel Plated, Schwalbe Rapid Rob 700x35c, TRP Hylex Hydraulic Disc, and Norco Flare - Black.

Which years of the Norco Threshold are on Quiver?

Quiver has the Norco Threshold for 2018, 2021, 2020, 2019, 2017, and 2015.

2018

2018 Norco Threshold A Single Speed

Reach 370 to 404 mm, stack 523 to 608 mm. The Threshold A Single Speed build comes with Schwalbe Rapid Rob 700x35c tires.

Compare geometry

Source: norco.com. Checked Oct 24, 2026.

Key facts

Brand: Norco
Model: Threshold
Model year: 2018
Frame: A Single Speed
Geometry labels: 48, 50.5, 53, 55.5, 58, and 60.5
Geometry: Complete for every size
Source: norco.com
Checked: Oct 24, 2026

Geometry by size

Geometry drawing, size 53, to scale.

2018 Norco Threshold A Single Speed geometry by size
Measurement	48	50.5	53	55.5	58	60.5
Reach(mm)	370	374	379	386	395	404
Stack(mm)	523	537	553	570	588	608
Head tube angle(°)	70	70.5	71.25	72	72.25	72.5
Seat tube angle(°)	75	74.5	74	73.5	73.25	73
Effective top tube(mm)	510	522.5	537.5	555	572.5	590
Chainstay length(mm)	427	427	429.5	429.5	432	432
Wheelbase(mm)	1010	1014	1017	1023	1039	1051
BB height(mm)	275	275	275	275	276.5	276.5
Standover(mm)	749	767	785	804	826	847
Seat tube length(mm)	480	505	530	555	580	605
Head tube length(mm)	105	117.5	130	145	165	185

How to read a geometry chart

Stock build

8 parts

Drivetrain

KMC K610HX Nickel Plated

Chain

SRAM Apex 1 40T - Black

Crankset

SRAM GXP XR

Bottom bracket

Wheels & Tires

Schwalbe Rapid Rob 700x35c

Tire

WTB STp i19 - Black

Rim

Brakes

TRP Hylex Hydraulic Disc

Brake

Cockpit

Norco Flare - Black

Handlebar

Norco Super Griptacular w/Gel - Black

Grips

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Quick answers

Which size or configuration labels have geometry for the 2018 Norco Threshold A Single Speed?: Geometry is listed for 48, 50.5, 53, 55.5, 58, and 60.5.
What are the reach and stack of the 2018 Norco Threshold A Single Speed in size 55.5?: In size 55.5, reach is 386 mm and stack is 570 mm.
What is the head tube angle of the 2018 Norco Threshold A Single Speed?: The head tube angle is 72 degrees in size 55.5.
What does the 2018 Norco Threshold A Single Speed ship with?: The stock build includes KMC K610HX Nickel Plated, Schwalbe Rapid Rob 700x35c, TRP Hylex Hydraulic Disc, and Norco Flare - Black.
Which years of the Norco Threshold are on Quiver?: Quiver has the Norco Threshold for 2018, 2021, 2020, 2019, 2017, and 2015.