Which size or configuration labels have geometry for the 2017 Norco Valence A Sora Forma?

Geometry is listed for 45.5, 48, 50.5, 53, and 55.5.

What are the reach and stack of the 2017 Norco Valence A Sora Forma in size 50.5?

In size 50.5, reach is 370 mm and stack is 542 mm.

What is the head tube angle of the 2017 Norco Valence A Sora Forma?

The head tube angle is 71.75 degrees in size 50.5.

What does the 2017 Norco Valence A Sora Forma ship with?

The stock build includes Shimano Sora R3000, Schwalbe Lugano 700x28c - Black, Norco Ultra-Comfort - Black, and Norco Sport Forma - Black.

Which years of the Norco Valence are on Quiver?

Quiver has the Norco Valence for 2017, 2019, 2018, and 2015.

2017

2017 Norco Valence A Sora Forma

Reach 359 to 385 mm, stack 517 to 584 mm. The Valence A Sora Forma build comes with Shimano Sora RD-R3000-GS shifting and Schwalbe Lugano 700x28c - Black tires.

Compare geometry

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

Key facts

Brand: Norco
Model: Valence
Model year: 2017
Frame: A Sora Forma
Geometry labels: 45.5, 48, 50.5, 53, and 55.5
Drivetrain: Shimano Sora RD-R3000-GS
Geometry: Complete for every size
Source: norco.com
Checked: Oct 24, 2026

Geometry by size

2017 Norco Valence A Sora Forma geometry by size
Measurement	45.5	48	50.5	53	55.5
Reach(mm)	359	364	370	376	385
Stack(mm)	517	528	542	561	584
Head tube angle(°)	70.75	71.25	71.75	72.25	72.5
Seat tube angle(°)	75	74.5	74	73.5	73.25
Wheelbase(mm)	971	975	986	994	1006
BB height(mm)	267	267	269.5	269.5	269.5
Head tube length(mm)	110	120	135	152.5	175

How to read a geometry chart

Stock build

9 parts

Drivetrain

Shimano Sora R3000

Shifter

Shimano Sora RD-R3000-GS

Derailleur

Shimano CS-HG200 9speed 11-32T

Cassette

KMC X9 9speed

Chain

Shimano Sora R3000 50/34T - Black

Crankset

Wheels & Tires

Schwalbe Lugano 700x28c - Black

Tire

Cockpit

Norco Ultra-Comfort - Black

Grips

FSA Orbit CE - ACB Integrated headset

Headset

Seatpost & Saddle

Norco Sport Forma - Black

Saddle

Keep your Valence A Sora Forma in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App Store Free on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Keep the factory build and your current parts distinct

Quick answers

Which size or configuration labels have geometry for the 2017 Norco Valence A Sora Forma?: Geometry is listed for 45.5, 48, 50.5, 53, and 55.5.
What are the reach and stack of the 2017 Norco Valence A Sora Forma in size 50.5?: In size 50.5, reach is 370 mm and stack is 542 mm.
What is the head tube angle of the 2017 Norco Valence A Sora Forma?: The head tube angle is 71.75 degrees in size 50.5.
What does the 2017 Norco Valence A Sora Forma ship with?: The stock build includes Shimano Sora R3000, Schwalbe Lugano 700x28c - Black, Norco Ultra-Comfort - Black, and Norco Sport Forma - Black.
Which years of the Norco Valence are on Quiver?: Quiver has the Norco Valence for 2017, 2019, 2018, and 2015.