Norco Storm 4

Name: Norco Storm 4
Brand: Norco

2027 MountainCross-country Manufacturer page

Fork travel: 100 mm
Wheels: 27.5″, 29″
Drivetrain: 1 × 7 30t / 12–32t
Gear range: 267%
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

XXS Not informed
XS Not informed
SM 154.9–165.1
MD Not informed
MD 163.8–174
LG 172.7–182.9
XL 181.6–191.8

Components

11 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 Not identified

Suspension

1 part

Fork
- SR Suntour XCE28

Drivetrain

6 parts

Bottom bracket

Cartridge, ST 73mm, 113mm axle length Not identified
Cassette
- Shimano CS-HG210-7 7 speeds 12–32t
CS-HG210
Chain
- KMC Z7 7 speeds
Crankset
- Prowheel 30t
Rear derailleur
- Shimano Tourney RD-TY500 7 speeds
RD-TY500
Shifters
- Shimano Altus SL-M315-7R 7 speeds
SL-M315-7R

Brakes

3 parts

Brake levers

C-Start Alloy Levers, Reach adj Not identified
Brakes

Front: C-Star, Resin pads, Mechanical Disc, Rear: C-Star, Resin pads, Mechanical Disc Not identified
Disc rotors

C-Star, 160mm, 6-bolt Not identified

Wheels and tires

4 parts

Front hub
- Formula
DC-1420
Rear hub
- Formula
DC-27A
Rims

Alloy XD-155, 32H Not identified

XD-155
Tires

Front: CY, 29x2.25" (M-XXL) 27.5"x2.25 (S), Wire, Rear: CY, 29x2.25" (M-XXL) 27.5"x2.25 (S), Wire Not identified

Cockpit and contact points

7 parts

Grips
- Norco
Handlebar
- Norco
Headset

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

Nylon Flat Pedal, Chromoly Axle Not identified
Saddle
- Norco
Seatpost

Alloy 31.6mm, 300mm (S), 400mm (M/L/XL/XXL) length Not identified
Stem

Alloy 40mm Length, 31.8mm Clamp Not identified

Sizes and geometry

7 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 425mm

Stack 615mm

Wheelbase 1134mm

Head angle 68.0°

Seat angle 75.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	335	365	395	425	425	455	485
Stackmm	592	602	611	615	624	633	643
Top tube lengthmm	494	526	559	590	592	625	657
Seat tube lengthmm	340	390	430	470	470	510	550
Head tube lengthmm	105	115	125	135	105	115	125
Head tube angle	68°	68°	68°	68°	68.5°	68.5°	68.5°
Seat tube angle	75°	75°	75°	75°	75°	75°	75°
Chainstay lengthmm	435	435	435	435	450	450	450
Wheelbasemm	1032	1066	—	1134	1146	1180	1214
Front centermm	602	636	326	703	703	737	771
Bottom bracket dropmm	49	49	49	44	63	63	63
Bottom bracket heightmm	305	305	305	310	310	310	310
Standover heightmm	588	616	632	673	686	721	754
Fork rakemm	42	42	42	42	51	51	51
Trailmm	98	98	98	98	92	92	92
Stack/reach ratio	1.77	1.65	1.55	1.45	1.47	1.39	1.33
Suspension and parts
Crank lengthmm	170	170	170	175	175	175	175
Stem lengthmm	60	60	60	60	60	60	60

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: 7
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 27.2 in
Highest gear: 72.5 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: 27.5″, 29″

Technical analysis

4 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 within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2027
Sample: 156 bicycles with this information
Coverage: 84.3% of the class

Lowest gear

27.2 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2027
Sample: 140 bicycles with this information
Coverage: 75.6% of the class

Highest gear

72.5 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2027
Sample: 140 bicycles with this information
Coverage: 75.6% of the class

Shifting

Mechanical

57 of 184 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2027
Sample: 184 bicycles with this information
Coverage: 99.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.4 km/h
Highest gear: 27.8 km/h

Total gear range 267%

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: 27.2–72.5 gear inches
Class reference (p10–p90): 17.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2027
Lowest gear: 140 bicycles with this information, 75.6% of the class
Highest gear: 140 bicycles with this information, 75.6% 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 2027 builds

Differences across 2027 builds
Specification	This bicycle Norco Storm 4	Norco Storm 1	Norco Storm 14	Norco Storm 14 Coaster	Norco Storm 16	Norco Storm 16 Coaster
Frame
Frame material	Aluminum	Aluminum	Not informed	Not informed	Aluminum	Aluminum
Fork material	Not informed	Not informed	Aluminum	Aluminum	Aluminum	Aluminum
Suspension
Suspension configuration	Hardtail	Hardtail	Rigid	Rigid	Rigid	Rigid
Front travel	100 mm	120 mm	Not informed	Not informed	Not informed	Not informed
Drivetrain
Smallest chainring	30	30	28	28	28	28
Largest chainring	30	30	28	28	28	28
Rear sprockets	7	10	1	1	1	1
Smallest sprocket	12	11	16	16	16	16
Largest sprocket	32	48	16	16	16	16
Lowest gear	27.2 in	18.1 in	24.5 in	24.5 in	28.0 in	28.0 in
Highest gear	72.5 in	79.1 in	24.5 in	24.5 in	28.0 in	28.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Rim brake	Coaster brake	Rim brake	Coaster brake
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Shifting	Mechanical	Mechanical	No shifting	No shifting	No shifting	No shifting
Other specifications
Fork spring	Coil	Coil	Not informed	Not informed	Not informed	Not informed
Suspension	Hardtail	Hardtail	Rigid	Rigid	Rigid	Rigid
Wheel size	27.5″ / 29″	27.5″ / 29″	14″	14″	16″	16″
Tire clearance	Not informed	Not informed	Not informed	Not informed	Maximum tire width: 2.25″	Maximum tire width: 2.25″