Which size or configuration labels have geometry for the 2015 Norco Threshold A2?

Geometry is listed for 48, 50.0, 53, 55.5, 58, and 60.5.

What are the reach and stack of the 2015 Norco Threshold A2 in size 55.5?

In size 55.5, reach is 389 mm and stack is 569 mm.

What is the head tube angle of the 2015 Norco Threshold A2?

The head tube angle is 72.25 degrees in size 55.5.

What does the 2015 Norco Threshold A2 ship with?

The stock build includes Shimano Tiagra ST-4600 10speed, WTB SX17 Disc 32H - Black w/Neon Green, Shimano Tiagra ST-4600, and Norco Wrap - Dark Blue.

Which years of the Norco Threshold are on Quiver?

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

2015

2015 Norco Threshold A2

Reach 367 to 407 mm, stack 523 to 609 mm. The Threshold A2 build comes with Shimano Tiagra RD-4601 SS shifting.

Compare geometry

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

Key facts

Brand: Norco
Model: Threshold
Model year: 2015
Frame: A2
Geometry labels: 48, 50.0, 53, 55.5, 58, and 60.5
Drivetrain: Shimano Tiagra RD-4601 SS
Geometry: Complete for every size
Source: norco.com
Checked: Oct 24, 2026

Geometry by size

2015 Norco Threshold A2 geometry by size
Measurement	48	50.0	53	55.5	58	60.5
Reach(mm)	367	372	379	389	398	407
Stack(mm)	523	534	552	569	589	609
Head tube angle(°)	70	70.5	71.5	72.25	72.5	72.75
Seat tube angle(°)	75	74.5	74	73.75	73.5	73.25
Wheelbase(mm)	1000	1004	1008	1016	1029	1041
BB height(mm)	282.5	282.5	282.5	282.5	282.5	282.5
Seat tube length(mm)	480	505	530	555	580	605
Head tube length(mm)	105	115	130	145	165	185

How to read a geometry chart

Stock build

10 parts

Drivetrain

Shimano Tiagra ST-4600 10speed

Shifter

Shimano Tiagra RD-4601 SS

Derailleur

Shimano CS-4600 12-30T 10 speed

Cassette

Shimano Tiagra CN-4601 10speed

Chain

Shimano R460 46/34T - Black

Crankset

Wheels & Tires

WTB SX17 Disc 32H - Black w/Neon Green

Rim

Brakes

Shimano Tiagra ST-4600

Brake

Cockpit

Norco Wrap - Dark Blue

Grips

Cane Creek 10-Series w/9mm Top Cover

Headset

Seatpost & Saddle

Norco Cross Race - Black

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2015 Norco Threshold A2?: Geometry is listed for 48, 50.0, 53, 55.5, 58, and 60.5.
What are the reach and stack of the 2015 Norco Threshold A2 in size 55.5?: In size 55.5, reach is 389 mm and stack is 569 mm.
What is the head tube angle of the 2015 Norco Threshold A2?: The head tube angle is 72.25 degrees in size 55.5.
What does the 2015 Norco Threshold A2 ship with?: The stock build includes Shimano Tiagra ST-4600 10speed, WTB SX17 Disc 32H - Black w/Neon Green, Shimano Tiagra ST-4600, and Norco Wrap - Dark Blue.
Which years of the Norco Threshold are on Quiver?: Quiver has the Norco Threshold for 2015, 2021, 2020, 2019, 2018, and 2017.