Norco Storm Youth 27.5

Name: Norco Storm Youth 27.5
Brand: Norco

2025 YouthMountain youth Manufacturer page

Norco Storm Youth 27.5, color Canadian Mint Green

Last known price: $679

Prices shown first for United States
Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 1 × 9 30t / 11–46t
Gear range: 418%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

27.5"

The manufacturer did not publish rider heights for these sizes.

Components

13 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, Tig Welding, 10x135mm QR, Tapered HT Not identified

Suspension

1 part

Fork
- SR Suntour XCT30
XCT-30

Drivetrain

6 parts

Bottom bracket

Cartridge, ST 73mm, 113mm axle length Not identified
Cassette
- Shimano CS-LG300-9 9 speeds 11–46t
CS-LG300
Chain
- KMC Z9 9 speeds
Crankset
- Prowheel 30t
Rear derailleur
- Shimano Cues RD-U4000 9 speeds
RD-U4000
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

3 parts

Wheels and tires

4 parts

Front hub
- Formula
DC-1420
Rear hub
- Formula
DC-1422
Rims

DP 27 Rims, 27mm ID, 32H Not identified
Tires
- Maxxis

Cockpit and contact points

7 parts

Grips

DDK lock-On, 139mm length Not identified
Handlebar

6061 Alloy DB 6.1, 720mm, 30mm rise Not identified
Headset

Zero Stack, 1-1/8" Steer, ZS44/28.6 | ZS44/30 1 1/8" Not identified
Pedals

Nylon Flat Pedal Not identified
Saddle
- Norco
Seatpost

Alloy 31.6mm, 300mm length Not identified
Stem

Alloy 50mm Length, 31.8mm Clamp Not identified

Sizes and geometry

1 size Open in the geometry plotter

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

Size 27.5"

Table

Reach 370mm

Stack 575mm

Wheelbase 1076mm

Head angle 67.0°

Seat angle 74.3°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	370
Stackmm	575
Top tube lengthmm	532
Seat tube lengthmm	385
Head tube lengthmm	110
Head tube angle	67°
Seat tube angle	74.25°
Chainstay lengthmm	430
Wheelbasemm	1076
Front centermm	648
Bottom bracket dropmm	30
Bottom bracket heightmm	323
Standover heightmm	627
Fork rakemm	42
Trailmm	104
Stack/reach ratio	1.55
Suspension and parts
Crank lengthmm	165
Stem lengthmm	50

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

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 17.9 in
Highest gear: 75.0 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: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

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

Lowest gear

17.9 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

75.0 gear inches

This value is above 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: 6.9 km/h
Highest gear: 28.7 km/h

Total gear range 418%

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: 17.9–75.0 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 Youth 27.5	Norco Storm 100	Norco Storm 120	Norco Storm 20	Norco Storm	Norco Storm 24
Frame
Bicycle weight	Not informed	15.27 kg	14.59 kg	10.63 kg	Not informed	12.04 kg
Suspension
Front travel	100 mm	100 mm	120 mm	63 mm	100 mm	80 mm
Drivetrain
Smallest chainring	30	30	30	28	30	28
Largest chainring	30	30	30	28	30	28
Rear sprockets	9	9	10	6	8	6
Smallest sprocket	11	11	11	14	11	14
Largest sprocket	46	46	48	28	45	28
Lowest gear	17.9 in	18.9 in	18.1 in	20.0 in	16.0 in	24.0 in
Highest gear	75.0 in	79.1 in	79.1 in	40.0 in	65.5 in	48.0 in
Brakes
Brake type	Hydraulic 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″	2.25″	Not informed	2.25″
Wheel size	27.5″	27.5″ / 29″	27.5″ / 29″	20″	24″	24″