Norco Aurum 2

2012 MountainDownhill

Last known price: $3,550

Prices shown first for United States
Travel: 200 / 200 mm Fork / rear shock
Wheels: 26″
Drivetrain: 1 × 9 36t / 11–28t
Gear range: 255%
Weight: 18 kg 39.7 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

15 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Aurum DH race frame , 200 mm travel , hydroformed 6061 aluminum Not identified

Suspension

2 parts

Drivetrain

7 parts

Bottom bracket

Comes with crank Not identified
Cassette
- SRAM PG-950 9 speeds 11–28t
PG-950
Chain
- KMC
Z-99
Crankset
- FSA 36t
Front derailleur

None
Rear derailleur
- SRAM X7
X-7
Shifters

None

Brakes

2 parts

Brake levers
- Avid
Brakes
- Avid Elixir 5

Wheels and tires

5 parts

Front hub

Alloy sealed bearing 20 mm Not identified
Rear hub
- Syntace
Rims

Sun Inferno 29 rim Not identified
Spokes

Black stainless spokes Not identified
Tires
- Kenda

Cockpit and contact points

7 parts

Grips
- Norco
Handlebar
- Norco
Headset
- FSA
Pedals

Alloy low profile flat MTB pedal Not identified
Saddle
- WTB Silverado
Seatpost
- Norco
Stem

Black Spire zero degree direct mount Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 410mm

Stack 581mm

Wheelbase 1177mm

Head angle 63.5°

Seat angle 71.4°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	390	410	435
Stackmm	581	581	581
Top tube lengthmm	580	605	635
Seat tube lengthmm	415	435	455
Head tube lengthmm	110	110	110
Head tube angle	63.5°	63.5°	63.5°
Seat tube angle	71.9°	71.4°	71°
Chainstay lengthmm	420	425	430
Wheelbasemm	1152	1177	1206
Front centermm	732	752	777
Bottom bracket dropmm	10	10	10
Bottom bracket heightmm	355	355	355
Standover heightmm	796	781.4	762.6
Fork rakemm	51	51	50
Trailmm	114	114	115
Stack/reach ratio	1.49	1.42	1.34
Suspension and parts
Front travelmm	200	200	200
Rear travelmm	200	200	200

Not published by the manufacturer: Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 18 kg

39.7 lb

Suspension

Suspension configuration: Full suspension
Front travel: 200 mm
Rear travel: 200 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 36
Largest chainring: 36
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 28
Lowest gear: 33.4 in
Highest gear: 85.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.8 km/h
Highest gear: 32.6 km/h

Total gear range 255%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 33.4–85.1 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2012 builds

Differences across 2012 builds
Specification	This bicycle Norco Aurum 2	Norco Aurum 1	Norco Aurum LE
Frame
Bicycle weight	18 kg	17.36 kg	15.77 kg
Drivetrain
Smallest chainring	36	36	Not informed
Largest chainring	36	36	Not informed
Rear sprockets	9	10	10
Lowest gear	33.4 in	33.4 in	Not informed
Highest gear	85.1 in	85.1 in	Not informed
Other specifications
Fork spring	Coil	Air	Air