Which size or configuration labels have geometry for the 2017 Norco Threshold A Tiagra?

Geometry is listed for 45, 48, 50.5, 53, 55.5, 58, and 60.

What are the reach and stack of the 2017 Norco Threshold A Tiagra in size 53?

In size 53, reach is 377 mm and stack is 562 mm.

What is the head tube angle of the 2017 Norco Threshold A Tiagra?

The head tube angle is 71.5 degrees in size 53.

What does the 2017 Norco Threshold A Tiagra ship with?

The stock build includes Shimano Tiagra ST-4700 10spd w/Adjuster, Schwalbe Rapid Rob 700x35c, Shimano Tiagra ST-4700, and Norco Compact - Black Stealth.

Which years of the Norco Threshold are on Quiver?

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

2017

2017 Norco Threshold A Tiagra

Reach 360 to 404 mm, stack 523 to 619 mm. The Threshold A Tiagra build comes with Shimano Tiagra RD-4700 shifting and Schwalbe Rapid Rob 700x35c tires.

Compare geometry

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

Key facts

Brand: Norco
Model: Threshold
Model year: 2017
Frame: A Tiagra
Geometry labels: 45, 48, 50.5, 53, 55.5, 58, and 60
Drivetrain: Shimano Tiagra RD-4700
Geometry: Complete for every size
Source: norco.com
Checked: Oct 24, 2026

Geometry by size

2017 Norco Threshold A Tiagra geometry by size
Measurement	45	48	50.5	53	55.5	58	60
Reach(mm)	360	365	369	377	386	395	404
Stack(mm)	523	532	544	562	579	599	619
Head tube angle(°)	70	70	70.5	71.5	72.25	72.5	72.75
Seat tube angle(°)	75.5	75	74.5	74	73.75	73.5	73.25
Wheelbase(mm)	993	1001	1005	1009	1017	1029	1042
BB height(mm)	284.5	284.5	284.5	284.5	284.5	284.5	284.5
Head tube length(mm)	95	105	115	130	145	165	185

How to read a geometry chart

Stock build

12 parts

Drivetrain

Shimano Tiagra ST-4700 10spd w/Adjuster

Shifter

Shimano Tiagra RD-4700

Derailleur

Shimano Tiagra CS-4700 11-32T 10 speed

Cassette

Shimano Tiagra CN-4601 10speed

Chain

FSA Omega Cross 46/36T - Black

Crankset

FSA MegaExo BB-4000

Bottom bracket

Wheels & Tires

Schwalbe Rapid Rob 700x35c

Tire

Brakes

Shimano Tiagra ST-4700

Brake

Cockpit

Norco Compact - Black Stealth

Handlebar

Norco Black Stealth

Stem

Norco Ultra-Comfort - Black

Grips

Seatpost & Saddle

Norco Cross Race - Black

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2017 Norco Threshold A Tiagra?: Geometry is listed for 45, 48, 50.5, 53, 55.5, 58, and 60.
What are the reach and stack of the 2017 Norco Threshold A Tiagra in size 53?: In size 53, reach is 377 mm and stack is 562 mm.
What is the head tube angle of the 2017 Norco Threshold A Tiagra?: The head tube angle is 71.5 degrees in size 53.
What does the 2017 Norco Threshold A Tiagra ship with?: The stock build includes Shimano Tiagra ST-4700 10spd w/Adjuster, Schwalbe Rapid Rob 700x35c, Shimano Tiagra ST-4700, and Norco Compact - Black Stealth.
Which years of the Norco Threshold are on Quiver?: Quiver has the Norco Threshold for 2017, 2021, 2020, 2019, 2018, and 2015.