2023 Rocky Mountain Vertex Jr 20 Bike

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Specifications

Product

Rocky Mountain Vertex Jr 20 Bike

Model Year

2023

Riding Type

Cross Country

Trail

Rider

Kids

Sizes and Geometry

One Size

Size	One Size
Top Tube Length	470mm
Head Tube Angle	68°
Head Tube Length	100mm
Seat Tube Angle	71°
Seat Tube Length	255mm
Bottom Bracket Height	15mm drop
Chainstay Length	347mm
Wheelbase	872mm
Standover	550mm
Reach	323mm
Stack	428mm
Additional Info	• Intended for riders with 432-612mm (17-24") inseam. • Standover height is measured 200mm in front of the bottom bracket.

Wheel Size

Other: 20"

Frame Material

Aluminum

Frame Material Details

6061 SL alloy

Rear Travel

Hardtail

Rear Shock

None

Fork

SR Suntour XCM JR Air

Fork Travel

80mm

Head Tube Diameter

Straight, 1.125"

Headset

Rocky Mountain, loose ball bearings

Handlebar

Rocky Mountain XC, 600mm width, 25mm rise, 9° backsweep, 5° upsweep, 31.8mm clamp diameter

Stem

Rocky Mountain XC, 40mm length, 7° rise, 31.8mm bar clamp

Grips

Rocky Mountain Kids, slide-on

Brakes

Shimano MT4100, 2-piston, resin pads, Shimaon RT10 160mm rotors

Brake Levers

Shimano MT4100

Drivetrain

Shifters

SunRace DLM903 Trigger, 9-speed

Front Derailleur

None

Rear Derailleur

SunRace RDM903, 9-speed, with clutch

ISCG Tabs

None

Chainguide

Upper slider

Cranks

Rocky Mountain Microdrive, three-piece, 127mm length

Chainrings

Rocky Mountain Microdrive, 28 tooth, 76mm BCD

Bottom Bracket

Sealed cartridge bearings, English/BSA threaded

Pedals

None

Chain

KMC X9, 9-speed

Cassette

SunRace CSM980, 9-speed, 11-42 tooth

Rims

Rocky Mountain JR25, 32 hole, tubeless compatible (rim tape/valves/sealant not included)

Hubs

Shimano TX505, HG driver

Spokes

Stainless steel 2.0

Tires

Kenda Amrak, 20" x 2.4"

Saddle

Rocky Mountain Pivotal Kids

Seatpost

Rocky Mountain Pivotal

Seatpost Diameter

27.2mm

Seatpost Clamp

Quick release

Rear Dropout / Hub Dimensions

Max. Tire Size

Bottle Cage Mounts

None

Colors

Orange/Black

Warranty

5 years frame; 1 year paint, decals, and hardware

Weight

Miscellaneous

• Intended for riders with 432-612mm (17-24") inseam
• External cable routing

Price

$859.00

More Info

Rocky Mountain website

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes