Norco Storm 9.1

Name: Norco Storm 9.1
Brand: Norco

2017 YouthMountain youth

Last known price: $639

Prices shown first for United States
Fork travel: 100 mm
Wheels: 24″
Drivetrain: 3 × 9 22–40t / 11–34t
Gear range: 562%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

18 of 20 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

Storm 29" Alloy XC Frame" Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

8 parts

Bottom bracket

Cartridge BB Not identified
Cassette
- Shimano CS-HG200
CS-HG200
Chain
- KMC
Chain tensioner

None
Crankset
- SR Suntour 40/30/22t
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Alivio RD-M3100 9 speeds
RD-M3100
Shifters

None

Brakes

3 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Norco
Handlebar
- Norco
Headset

None
Pedals
- Feimin
Saddle
- Norco
Seatpost
- Norco
Stem
- Norco

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 405mm

Stack 654mm

Wheelbase 1120mm

Head angle 69.5°

Seat angle 72.4°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 24″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	383	405	426	447
Stackmm	644	654	664	675
Top tube lengthmm	582	612	642	672
Seat tube lengthmm	430	470	510	550
Head tube lengthmm	115	130	140	150
Head tube angle	69.25°	69.5°	69.75°	70°
Seat tube angle	72.8°	72.4°	72°	71.6°
Chainstay lengthmm	450	450	450	450
Wheelbasemm	1095	1120	1143	1165
Front centermm	654	678	700	722
Bottom bracket dropmm	68	63	63	63
Bottom bracket heightmm	303	308	308	308
Standover heightmm	746	792	798	809
Fork rakemm	46	45	47	47
Stack/reach ratio	1.68	1.62	1.56	1.51
Suspension and parts
Front travelmm	100	100	100	100
Crank lengthmm	170	175	175	175
Handlebar widthmm	720	720	720	720
Stem lengthmm	60	60	60	60

Not published by the manufacturer: Trail, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 40
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 15.5 in
Highest gear: 87.3 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: 2.25″
Wheel material: Aluminum
Wheel size: 24″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2017
Sample: 41 bicycles with this information
Coverage: 74.5% of the class

Lowest gear

15.5 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2017
Sample: 44 bicycles with this information
Coverage: 80.0% of the class

Highest gear

87.3 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2017
Sample: 44 bicycles with this information
Coverage: 80.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 5.9 km/h
Highest gear: 33.4 km/h

Total gear range 562%

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: 15.5–87.3 gear inches
Class reference (p10–p90): 16.5–87.3 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2017
Lowest gear: 44 bicycles with this information, 80.0% of the class
Highest gear: 44 bicycles with this information, 80.0% of the class

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 2017 builds

Differences across 2017 builds
Specification	This bicycle Norco Storm 9.1	Norco Storm 7.1	Norco Storm 7.1 Forma	Norco Storm 7.2	Norco Storm 7.3	Norco Storm 7.3 Forma
Drivetrain
Largest chainring	40	40	40	42	42	42
Rear sprockets	9	9	9	8	8	8
Lowest gear	15.5 in	17.8 in	17.8 in	17.8 in	17.8 in	17.8 in
Highest gear	87.3 in	100.0 in	100.0 in	105.0 in	105.0 in	105.0 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Mechanical disc
Other specifications
Tire width	2.25″	2.2″	2.2″	2.2″	2.2″	2.2″
Wheel size	24″	27.5″	27.5″	27.5″	27.5″	27.5″