Rocky Mountain Growler 740

2017 MountainTrail

Last known price: $1,249

Prices shown first for United States
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 1 × 11 28t / 11–42t
Gear range: 382%
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

19 of 21 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 Series Custom Hydroformed Alloy. Threaded BB. Tapered Zerostack Headtube. Reverb Stealth Compatible. Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Bottom bracket
- Rocky Mountain
Cassette
- SRAM PG-1130 11 speeds 11–42t
PG-1130
Chain
- KMC X11 11 speeds
Crankset
- Rocky Mountain 28t
Rear derailleur
- SRAM NX
Shifters
- SRAM NX

Brakes

2 parts

Brake levers
- Shimano BL-M355
BL-M355
Brakes
- Shimano BR-M355
BR-M355

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

6 sizes Open in the geometry plotter

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

Size SM

Table

Reach 390mm

Stack 618mm

Wheelbase 1125mm

Head angle 67.0°

Seat angle 73.0°

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 Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	351	375	390	419	438	463
Stackmm	601	601	618	623	628	638
Top tube lengthmm	535	560	585	610	630	655
Seat tube lengthmm	343	381	430	457	483	521
Head tube lengthmm	100	100	100	105	110	120
Head tube angle	67°	67°	67°	67°	67°	67°
Seat tube angle	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	430	430	440	440	440	440
Wheelbasemm	1073	1098	1125	1151	1171	1198
Front centermm	646	671	691	717	737	764
Bottom bracket dropmm	40	40	58	58	58	58
Bottom bracket heightmm	315	315	297	297	297	297
Fork rakemm	51	52	56	52	51	48
Trailmm	95	94	90	94	95	99
Stack/reach ratio	1.71	1.60	1.59	1.49	1.43	1.38

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 18.3 in
Highest gear: 70.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 3″
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.

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 423 bicycles with this information
Coverage: 95.7% of the class

Lowest gear

18.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 410 bicycles with this information
Coverage: 92.7% of the class

Highest gear

70.0 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 410 bicycles with this information
Coverage: 92.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.0 km/h
Highest gear: 26.8 km/h

Total gear range 382%

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: 18.3–70.0 gear inches
Class reference (p10–p90): 16.8–94.9 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2017
Lowest gear: 410 bicycles with this information, 92.7% of the class
Highest gear: 410 bicycles with this information, 92.7% 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 2017 builds

Differences across 2017 builds
Specification	This bicycle Rocky Mountain Growler 740	Rocky Mountain Growler 730	Rocky Mountain Growler 750
Drivetrain
Rear sprockets	11	9	11
Smallest sprocket	11	12	11
Largest sprocket	42	36	42
Lowest gear	18.3 in	21.4 in	18.3 in
Highest gear	70.0 in	64.2 in	70.0 in
Brakes
Brake type	Mechanical disc	Mechanical disc	Hydraulic disc
Other specifications
Fork spring	Air	Coil	Air