Norco Storm 20

2025 YouthMountain youth Manufacturer page

Last known price: $539

Prices shown first for United States
Fork travel: 63 mm
Wheels: 20″
Drivetrain: 1 × 6 28t / 14–28t
Gear range: 200%
Weight: 10.63 kg 23.4 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

20" 115.6–129.5

Components

12 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

Aluminum, 9x135mm QR, 20" Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Bottom bracket

Sealed bearing, ST 68mm Not identified
Cassette
- Shimano Tourney TZ MF-TZ500-6 6 speeds 14–28t
MF-TZ500
Chain
- KMC Z6 6 speeds
Crankset

Alloy 3pc, 140mm, 28T Narrow Wide Not identified
Rear derailleur
- Shimano Tourney TZ RD-TZ500 6 speeds
RD-TZ500TZ-500
Shifters
- Shimano SL-RV200-6R 6 speeds
SL-RV200-6R

Brakes

3 parts

Brake levers
- Tektro
Brakes
- Tektro
Disc rotors

6-Bolt, 160mm Not identified

Wheels and tires

4 parts

Front hub
- Formula
DC-1420
Rear hub
- Formula DC-31R
DC-31RDC-31R-7S
Rims

Aluminum DW, 28h, 20" MTB Not identified
Tires

Front: CY Trail, 20x2.25", Wire, Rear: CY Trail, 20x2.25", Wire Not identified

Cockpit and contact points

7 parts

Grips
- Norco
Handlebar

Alloy Jr. Riser, 540mm, 30mm Rise Not identified
Headset

External Cup Ball Bearing, 1-1/8" EC 34 Not identified
Pedals

Jr. MTB Flat, 9/16" Not identified
Saddle
- Norco
Seatpost
- Norco
Stem

Alloy 35mm Length, 31.8mm Clamp Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 20"

Table

Reach 330mm

Stack 418mm

Wheelbase 904mm

Head angle 65.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ 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	330
Stackmm	418
Top tube lengthmm	458
Seat tube lengthmm	255
Head tube lengthmm	90
Head tube angle	65°
Seat tube angle	73°
Chainstay lengthmm	338
Wheelbasemm	904
Front centermm	566
Bottom bracket dropmm	7
Bottom bracket heightmm	253
Standover heightmm	467
Fork rakemm	40
Trailmm	77
Stack/reach ratio	1.27
Suspension and parts
Crank lengthmm	140
Stem lengthmm	45

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 10.63 kg

23.4 lb

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 6
Smallest sprocket: 14
Largest sprocket: 28
Lowest gear: 20.0 in
Highest gear: 40.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

3 measures

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

Lowest gear

20.0 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Highest gear

40.0 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Shifting

Mechanical

10 of 367 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 367 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.7 km/h
Highest gear: 15.3 km/h

Total gear range 200%

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: 20.0–40.0 gear inches
Class reference (p10–p90): 14.0–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2025
Lowest gear: 257 bicycles with this information, 70.0% of the class
Highest gear: 257 bicycles with this information, 70.0% 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 2025 builds

Differences across 2025 builds
Specification	This bicycle Norco Storm 20	Norco Storm 100	Norco Storm 120	Norco Storm	Norco Storm 24	Norco Storm 26
Frame
Bicycle weight	10.63 kg	15.27 kg	14.59 kg	Not informed	12.04 kg	12.95 kg
Suspension
Front travel	63 mm	100 mm	120 mm	100 mm	80 mm	100 mm
Drivetrain
Smallest chainring	28	30	30	30	28	28
Largest chainring	28	30	30	30	28	28
Rear sprockets	6	9	10	8	6	6
Smallest sprocket	14	11	11	11	14	14
Largest sprocket	28	46	48	45	28	28
Lowest gear	20.0 in	18.9 in	18.1 in	16.0 in	24.0 in	26.0 in
Highest gear	40.0 in	79.1 in	79.1 in	65.5 in	48.0 in	52.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Mechanical disc	Mechanical disc
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Tire width	2.25″	2.25″	2.35″	Not informed	2.25″	2.25″
Wheel size	20″	27.5″ / 29″	27.5″ / 29″	24″	24″	26″