Rocky Mountain Edge Jr 20 Shimano

Name: Rocky Mountain Edge Jr 20 Shimano
Brand: Rocky Mountain

2023 YouthMountain youth Manufacturer page

Rocky Mountain Edge Jr 20 Shimano, color Red / Black

Last known price: $499

Prices shown first for United States
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 7 28t / 11–34t
Gear range: 309%
Weight: 8.02 kg 17.7 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

kids

The manufacturer did not publish rider heights for these sizes.

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 SL Alloy | Threaded BB | Zero Stack Headtube | 20" Kid's Geometry Rear Triangle Not identified

Suspension

1 part

Fork
- Rocky Mountain

Drivetrain

6 parts

Bottom bracket

Sealed Cartridge Bearing Not identified
Cassette
- SunRace 11–34t
Chain
- KMC Z7 7 speeds
Crankset
- Rocky Mountain 28t
Rear derailleur
- Shimano Tourney RD-TY300 7 speeds
RD-TY300
Shifters
- SunRace

Brakes

1 part

Brakes

V Brake TX-121 | F: | R: Not identified

TX-121

Wheels and tires

5 parts

Cockpit and contact points

6 parts

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 kids

Table

Reach 315mm

Stack 450mm

Wheelbase 883mm

Head angle 68.0°

Seat angle 71.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ 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
Reachmm	315
Stackmm	450
Top tube lengthmm	470
Seat tube lengthmm	255
Head tube lengthmm	115
Head tube angle	68°
Seat tube angle	71°
Chainstay lengthmm	350
Wheelbasemm	883
Front centermm	534
Bottom bracket dropmm	15
Standover heightmm	560
Fork rakemm	39
Stack/reach ratio	1.43

Not published by the manufacturer: Bottom bracket height, Trail, 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
Fork material: Aluminum
Bicycle weight: 8.02 kg

17.7 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 7
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 16.5 in
Highest gear: 50.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 2.4″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

3 measures

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

Lowest gear

16.5 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2023
Sample: 345 bicycles with this information
Coverage: 81.5% of the class

Highest gear

50.9 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2023
Sample: 345 bicycles with this information
Coverage: 81.5% of the class

Shifting

Mechanical

20 of 423 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2023
Sample: 423 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.3 km/h
Highest gear: 19.5 km/h

Total gear range 309%

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: 16.5–50.9 gear inches
Class reference (p10–p90): 14.0–78.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2023
Lowest gear: 345 bicycles with this information, 81.5% of the class
Highest gear: 345 bicycles with this information, 81.5% 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 2023 builds

Differences across 2023 builds
Specification	This bicycle Rocky Mountain Edge Jr 20 Shimano	Rocky Mountain Edge Jr 12	Rocky Mountain Edge Jr 14	Rocky Mountain Edge Jr 16	Rocky Mountain Edge Jr 20	Rocky Mountain Edge Jr 24
Frame
Bicycle weight	8.02 kg	3.81 kg	6.22 kg	6.8 kg	8 kg	9.3 kg
Drivetrain
Front chainrings	1	Not informed	1	1	1	1
Smallest chainring	28	Not informed	28	28	28	28
Largest chainring	28	Not informed	28	28	28	28
Rear sprockets	7	Not informed	1	1	7	8
Smallest sprocket	11	Not informed	16	16	11	11
Largest sprocket	34	Not informed	16	16	34	34
Lowest gear	16.5 in	Not informed	24.5 in	28.0 in	16.5 in	19.8 in
Highest gear	50.9 in	Not informed	24.5 in	28.0 in	50.9 in	61.1 in
Cockpit
Seatpost	Rigid seatpost	Not informed	Not informed	Not informed	Rigid seatpost	Rigid seatpost
Shifting	Mechanical	Mechanical	No shifting	No shifting	Mechanical	Mechanical
Other specifications
Bottom bracket standard	BSA	Not informed	BSA	BSA	BSA	BSA
Tire width	2.4″	2.25″	2.25″	2.25″	2.4″	2.4″
Wheel size	20″	12″	14″	16″	20″	24″