Bicycle Archive · Specification report

2021 Norco Aurum A1

Velopedia Archive ID 900000113

Overview

Model year	2021
Brand	Norco
Model	Aurum A1
Bicycle type	Mountain
Archive ID	900000113
Colors	Red
Sizes	S; M; L; XL

Frameset

Frame construction	Aurum A 7.1
Fork	RockShox Boxxer Select, Debonair, Charger RC, 200mm Travel
Rear shock	Fox Performance Vanilla LSC, Coil Spring, S 350lb, M 400lb, L 450lb , XL 500lb Spring Weight

Drivetrain

Shifters	Shimano Zee, SL-M640, 10 speed
Rear derailleur	Shimano Zee, RD-M640, short cage
Crankset	Raceface Chester, 165mm, 36T
Bottom bracket	Race Face 83mm
Cassette	SRAM PG 1030, 10 speed 11-28T
Chain	KMC X10

Brakes

Brakes	(F) SRAM Code R 4 Piston, Hydraulic, 200mm / (R) SRAM Code R 4 Piston, Hydraulic, 200mm

Cockpit & contact points

Headset	FSA 57E-1
Handlebar	Norco 6061, 800mm, 20mm rise, 35mm bore
Stem	Race Face Chester DM 35, 50mm
Saddle	WTB Volt Sport
Seatpost	Norco 6061 alloy, 2-bolt head

Wheels & tires

Hubs	(F) Novatech sealed bearing, 20x110mm / (R) SRAM MTH-746, sealed bearing, through axle
Rims	WTB ST I29 TCS 2.0, 27.5
Front tire	Maxxis Assegai 2.5" EXO/TR
Rear tire	Maxxis Assegai 2.5" EXO/TR
Wheel size	27.5"

Geometry · S · 27.5"

Seat tube	400 mm
Effective top tube	539 mm
Head tube	100 mm
Head-tube angle	63°
Seat-tube angle	76.4°
Chainstay / rear center	425 mm
Wheelbase	1177 mm
Bottom-bracket drop	-12 mm
Bottom-bracket height	343 mm
Reach	393 mm
Stack	602 mm
Standover height	682 mm
Fork offset / rake	52 mm
Trail	123 mm
Crank length	165 mm
Stem length	50 mm
Wheel size	27.5"

Geometry · M · 27.5"

Seat tube	420 mm
Effective top tube	571 mm
Head tube	110 mm
Head-tube angle	63°
Seat-tube angle	75.5°
Chainstay / rear center	435 mm
Wheelbase	1211 mm
Bottom-bracket drop	-12 mm
Bottom-bracket height	343 mm
Reach	413 mm
Stack	611 mm
Standover height	688 mm
Fork offset / rake	52 mm
Trail	123 mm
Crank length	165 mm
Stem length	50 mm
Wheel size	27.5"

Geometry · L · 27.5"

Seat tube	440 mm
Effective top tube	603 mm
Head tube	120 mm
Head-tube angle	63°
Seat-tube angle	74.6°
Chainstay / rear center	445 mm
Wheelbase	1254 mm
Bottom-bracket drop	-12 mm
Bottom-bracket height	343 mm
Reach	432 mm
Stack	620 mm
Standover height	695 mm
Fork offset / rake	52 mm
Trail	123 mm
Crank length	165 mm
Stem length	50 mm
Wheel size	27.5"

Geometry · XL · 27.5"

Seat tube	460 mm
Effective top tube	635 mm
Head tube	130 mm
Head-tube angle	63°
Seat-tube angle	73.8°
Chainstay / rear center	455 mm
Wheelbase	1280 mm
Bottom-bracket drop	-12 mm
Bottom-bracket height	343 mm
Reach	452 mm
Stack	629 mm
Standover height	704 mm
Fork offset / rake	52 mm
Trail	123 mm
Crank length	165 mm
Stem length	50 mm
Wheel size	27.5"

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 7, 2026.