Norco Storm 9.1

2015 YouthMountain youth

Last known price: $645

Prices shown first for United States
Fork travel: 100 mm
Wheels: 24″
Drivetrain: 3 × 9 22–44t / 11–34t
Gear range: 618%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

15"
17"
18.5"
20"
21.5"

The manufacturer did not publish rider heights for these sizes.

Components

20 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

Storm Alloy 29" XC W/Formed Tubing " Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

8 parts

Bottom bracket

Cartridge BB Not identified
Cassette
- Shimano CS-HG20
CS-HG20
Chain
- SRAM
Chain tensioner

None
Crankset
- SR Suntour 44/32/22t
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Acera RD-M390
RD-M390
Shifters
- Jagwire

Brakes

3 parts

Wheels and tires

4 parts

Front hub
- SRAM
MTH-306
Rear hub
- SRAM
MTH-306
Rims
- WTB
Tires
- WTB Nano

Cockpit and contact points

7 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 18.5"

Table

Reach 392mm

Stack 650mm

Wheelbase 1093mm

Head angle 70.5°

Seat angle 73.0°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	361	373	392	410	422
Stackmm	639	646	650	655	659
Top tube lengthmm	550	570	590	610	630
Seat tube lengthmm	381	432	470	508	546
Head tube lengthmm	115	120	130	135	140
Head tube angle	70°	70.5°	70.5°	70.5°	70.5°
Seat tube angle	73.5°	73°	73°	73°	72.5°
Chainstay lengthmm	450	450	450	450	450
Wheelbasemm	1062	1071	1093	1114	1128
Front centermm	621	630	651	671	685
Bottom bracket dropmm	68	68	63	63	63
Bottom bracket heightmm	302	302	307	307	307
Standover heightmm	786	780	783	799	815
Fork rakemm	45	46	45	46	47
Stack/reach ratio	1.77	1.73	1.66	1.60	1.56
Suspension and parts
Front travelmm	100	100	100	100	100

Not published by the manufacturer: Trail, Rear travel, Crank length, Handlebar width, Stem length, 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: 44
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 15.5 in
Highest gear: 96.0 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: 2.1″
Wheel material: Aluminum
Wheel size: 24″

Technical analysis

2 measures

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

Lowest gear

15.5 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2015
Sample: 43 bicycles with this information
Coverage: 93.4% of the class

Highest gear

96.0 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2015
Sample: 43 bicycles with this information
Coverage: 93.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 5.9 km/h
Highest gear: 36.8 km/h

Total gear range 618%

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: 15.5–96.0 gear inches
Class reference (p10–p90): 16.5–91.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2015
Lowest gear: 43 bicycles with this information, 93.4% of the class
Highest gear: 43 bicycles with this information, 93.4% 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 2015 builds
Specification	This bicycle Norco Storm 9.1	Norco Storm 6.3 Step Thru	Norco Storm 7.1	Norco Storm 7.1 Forma	Norco Storm 7.2	Norco Storm 7.3
Suspension
Front travel	100 mm	63 mm	100 mm	100 mm	100 mm	75 mm
Drivetrain
Smallest chainring	22	24	22	22	22	24
Largest chainring	44	42	44	44	42	42
Rear sprockets	9	7	9	9	8	7
Smallest sprocket	11	12	11	11	11	12
Largest sprocket	34	32	34	34	32	32
Lowest gear	15.5 in	19.5 in	17.8 in	17.8 in	18.9 in	20.6 in
Highest gear	96.0 in	91.0 in	110.0 in	110.0 in	105.0 in	96.3 in
Brakes
Brake type	Hydraulic disc	Rim brake	Hydraulic disc	Hydraulic disc	Mechanical disc	Rim brake
Other specifications
Fork spring	Coil	Not informed	Coil	Coil	Coil	Not informed
Wheel size	24″	26″	27.5″	27.5″	27.5″	27.5″