Norco Storm 4.3

Name: Norco Storm 4.3
Brand: Norco

2021 YouthMountain youth Manufacturer page

Last known price: $609

Prices shown first for United States
Suspension: Rigid
Wheels: 24″
Drivetrain: 1 × 7 28t / 14–34t
Gear range: 243%
Frame: Aluminum
Brakes: Rim brake

Rider height by size (cm)

Size guide

24" 128.3–142.2

Components

7 of 21 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

Aluminum Frame Not identified

Suspension

1 part

Fork

MTB Rigid Long Radius Not identified

Drivetrain

6 parts

Bottom bracket

Sealed Bearing, BSA Threaded Not identified
Cassette
- Shimano Tourney 14–34t
Chain
- KMC
Crankset

3 Piece Alloy, 28T Narrow-Wide, Outer Guard Not identified
Rear derailleur
- Shimano Tourney RD-TY500 7 speeds
RD-TY500
Shifters
- Shimano Altus

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

4 parts

Front hub

Alloy MTB, 9x100mm, Angular Contact Bearing Not identified
Rear hub

Alloy MTB, 10x135mm, Angular Contact Bearing Not identified
Rims

Aluminum MTB, 28H, 24" Not identified
Tires

Fast Rolling Tread, 24 x 1.75” Not identified

Cockpit and contact points

7 parts

Grips

Jr. MTB, Soft Krayton Rubber Not identified
Handlebar

Alloy Jr, 640mm, 30mm Rise Not identified
Headset

Internal Threadless Not identified
Pedals

Jr. MTB Pedal PP - Black Not identified
Saddle
- Norco
Seatpost

Alloy 27.2 Not identified
Stem

Alloy Jr. MTB, 35mm Reach Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 24"

Table

Reach 350mm

Stack 518mm

Wheelbase 954mm

Head angle 69.0°

Seat angle 70.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	350
Stackmm	518
Top tube lengthmm	538
Seat tube lengthmm	270
Head tube lengthmm	100
Head tube angle	69°
Seat tube angle	70°
Chainstay lengthmm	380
Wheelbasemm	954
Front centermm	577
Bottom bracket dropmm	40
Bottom bracket heightmm	266
Standover heightmm	603
Fork rakemm	40
Stack/reach ratio	1.48
Suspension and parts
Crank lengthmm	152
Stem lengthmm	35

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 7
Smallest sprocket: 14
Largest sprocket: 34
Lowest gear: 19.8 in
Highest gear: 48.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 1.75″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
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

19.8 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Highest gear

48.0 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 18.4 km/h

Total gear range 243%

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: 19.8–48.0 gear inches
Class reference (p10–p90): 15.6–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2021
Lowest gear: 230 bicycles with this information, 72.3% of the class
Highest gear: 230 bicycles with this information, 72.3% 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 2021 builds
Specification	This bicycle Norco Storm 4.3	Norco Storm 1 27.5	Norco Storm 1 29	Norco Storm 1 SE 27.5	Norco Storm 1 SE 29	Norco Storm 2.1
Suspension
Suspension configuration	Rigid	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail
Front travel	Not informed	100 mm	100 mm	100 mm	100 mm	40 mm
Drivetrain
Smallest chainring	28	30	30	30	30	30
Largest chainring	28	30	30	30	30	30
Rear sprockets	7	11	11	11	11	6
Smallest sprocket	14	11	11	11	11	14
Largest sprocket	34	51	51	51	51	28
Lowest gear	19.8 in	16.2 in	17.1 in	16.2 in	17.1 in	21.4 in
Highest gear	48.0 in	75.0 in	79.1 in	75.0 in	79.1 in	42.9 in
Brakes
Brake type	Rim brake	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Suspension	Rigid	Hardtail	Hardtail	Hardtail	Hardtail	Hardtail
Tire width	1.75″	2.25″	2.25″	2.25″	2.25″	1.95″
Wheel size	24″	27.5″	29″	27.5″	29″	20″
Fork spring	Not informed	Coil	Coil	Coil	Coil	Coil