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2021 Rocky Mountain

Growler 40

A 29″ aluminum frame hardtail trail bike with upper mid-range components.
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Manufacturer Price

$1,669
FrameAluminum
SuspensionHardtail, 140mm
ForkSuntour RAIDON
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetDeore
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Growler 40
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

26 mph

Growler 40

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
99 Spokes
2020 Rocky Mountain Growler Jr 24

Jun 2020

The Growler Jr 24 is a scaled down version of the popular hardtail from Rocky Mountain Bikes. Like its big brother, it’s a progressive hardtail shredding machine.

Highs
  • Progressive geometry and plenty of kid friendly features

Lows
  • A bit on the heavy side

Read Review

Mountain Bike Action
Mountain Bike Action Bike Test: Rocky Mountain Growler 50 Trail Bike

Oct 2020 · McCoy

Enduro geometry on a hardtail?

Read Review

BIKE Magazine
Tested: Rocky Mountain Growler 50 | $1,900

Nov 2019

Modern geometry meets affordable hardtail in the Rocky Mountain Growler 50.

Read Review

Outdoor Gear Lab
Rocky Mountain Growler 40

Aug 2019 · Jeremy Benson

The Rocky Mountain Growler 40 is a reasonably capable hardtail that has a distinctly upright riding position. There was nothing especially standout about...

Highs
  • Affordable

  • Comfortable

Lows
  • Poor tire specification

  • Upright rider position

  • Less stable at speed

Read Review

NSMB
Rocky Mountain Growler 40 - Budget Review

Jun 2019

" On my first ride down I hit the same trails I usually ride on test bikes that cost many times its price..."

Read Review

Geometry
Specs
Build
Frame

Rocky Mountain 6061 Alloy. Threaded BB. Boost 148mm. Tapered Zerostack Headtube. Dropper Post Compatible.

BB StandardBSA, Threaded

Fork

Suntour Raidon 34 LOR Air Boost 140mm

Travel140mm

Spring TypeAir

Bottom Bracket

Shimano SM-BB52

Headset

FSA Orbit NO.57B | 36°x45° Bearings | 30.2mm x 41mm x 7.1mm Upper | 40mm x 51.8mm x 7.5mm Lower

Stem

Rocky Mountain XC | 7° Rise | All Sizes = 40mm

Handlebar

Rocky Mountain AM | 800mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 31.8mm Clamp

Saddle

WTB Volt | Steel Rails | 142mm Width

Seatpost

Rocky Mountain Toonie Drop Alloy | 30.9mm | S = 125mm | MD = 150mm | LG - XL = 170mm

TypeDropper

Pedals

Alloy Platform

Grips

Rocky Mountain Lock On Light

Groupset
Rear Derailleur

Shimano Deore 12spd

Crank

Shimano Deore 12spd 30T

Shifters

Shimano Deore 12spd

Cassette

Shimano Deore 10-51T 12spd

Chain

Shimano M6100

Brakes

Shimano MT4100 2 Piston | Organic Pads | Shimano RT30 180mm F Rotor | Shimano RT30 180mm R Rotor

TypeShimano Hydraulic Disc

Wheels
Rims

WTB ST i30 TCS 2.0 Tubeless | Tubeless Ready - Tape | Valves Incl

Spokes

2.0 Stainless

Front Hub

Shimano MT410 | 15mm Boost

Rear Hub

Shimano MT410 Boost 148mm | RMB Axle | 163mm x 12mm x 1.5m

Tires

F: WTB Vigilante TCS Light High Grip Tri-Tec 29 x 2.6 // R: WTB Trail Boss G2 TCS Light Fast Rolling Tri-Tec 29 x 2.6

Rider Notes
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First added August 11

Last updated June 8

Not listed for 1,819 days