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Rocky Mountain Growler Jr 20

Last known price
$909
Fork travel
60 mm
Wheels
20″
Drivetrain
1 × 8 28t / 11–40t
Gear range
364%
Frame
Aluminum
Brakes
Hydraulic disc

Rider height by size (cm)

Size guide
  • SM 158–171
  • MD 168–180
  • LG 178–189
  • XL 186–199

Components

16 of 20 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

    Rocky Mountain 6061 Alloy | Threaded BB | Zerostack Headtube | Dropper Post Compatible Not identified

Suspension

1 part

Sizes and geometry

4 sizes

Size explorer

Enter your height to highlight matching ranges.

Size Reported by the manufacturer

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit
  • Unisex
Frame material
  • Aluminum

Suspension

Suspension configuration
  • Hardtail
Front travel
  • 60 mm

Drivetrain

Derived by Bikelake
Front chainrings
  • 1
Smallest chainring
  • 28
Largest chainring
  • 28
Rear sprockets
  • 8
Smallest sprocket
  • 11
Largest sprocket
  • 40
Lowest gear
  • 14.0 in
Highest gear
  • 50.9 in

Technical analysis

3 measures

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

Lowest gear

14.0 gear inches

This value is below the central range for this class.

Cohort
Youth / Mountain youth Model year: 2024
Sample
301 bicycles with this information
Coverage
79.4% of the class

Highest gear

50.9 gear inches

This value is below the central range for this class.

Cohort
Youth / Mountain youth Model year: 2024
Sample
301 bicycles with this information
Coverage
79.4% of the class

Shifting

Mechanical

14 of 379 bicycles with this information use electronic shifting.

Cohort
Youth / Mountain youth Model year: 2024
Sample
379 bicycles with this information
Coverage
100.0% of the class

Gearing

Estimated speeds at 80 rpm

This bicycle

Lowest gear
5.4 km/h
Highest gear
19.5 km/h

Total gear range 364%

Pedaling rhythm
80rpm
40
60
80
100
120

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 2024 builds

Differences across 2024 builds
Specification This bicycle Rocky Mountain Growler Jr 20 Rocky Mountain Growler 20 Rocky Mountain Growler 20 microSHIFT Rocky Mountain Growler 40 Rocky Mountain Growler 40 Shimano Rocky Mountain Growler Jr 20 SunRace
Frame
Bicycle weight Not informed 15.2 kg 15.23 kg Not informed Not informed Not informed
Suspension
Front travel 60 mm 130 mm 130 mm 140 mm 140 mm 60 mm
Drivetrain
Smallest chainring 28 28 28 32 30 28
Largest chainring 28 28 28 32 30 28
Rear sprockets 8 10 10 12 12 8
Smallest sprocket 11 11 11 10 10 11
Largest sprocket 40 48 48 51 51 40
Lowest gear 14.0 in 16.9 in 16.9 in 18.2 in 17.1 in 14.0 in
Highest gear 50.9 in 73.8 in 73.8 in 92.8 in 87.0 in 50.9 in
Cockpit
Seatpost Rigid seatpost Dropper seatpost Dropper seatpost Dropper seatpost Dropper seatpost Rigid seatpost
Other specifications
Fork spring Coil Coil Coil Air Air Coil
Tire width 2.6″ 2.6″ 2.6″ 2.5″ 2.6″ 2.6″
Wheel size 20″ 29″ 29″ 29″ 29″ 20″

Other models in this family

6 models

Published versions from the same family and model year.

Rocky Mountain Growler Jr 20, by Rocky Mountain

This bicycle

Mountain youth

Growler Jr 20

  • Suspension: 60 mm
  • Wheel size: 20″
Rocky Mountain Growler 20, by Rocky Mountain

Trail

Growler 20

Mountain / Trail

  • Weight: 15.2 kg
  • Suspension: 130 mm
  • Wheel size: 29″
Rocky Mountain Growler 40, by Rocky Mountain

Trail

Growler 40

Mountain / Trail

  • Suspension: 140 mm
  • Wheel size: 29″

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