2023 Rocky Mountain Vertex Jr 20 Orange/Black 20"

SunRace 9-Speed


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In Stock - Free Shipping or Pickup in Store

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2023 Rocky Mountain Vertex Jr 20 Orange/Black 20"

SunRace 9-Speed


Add to cart

In Stock - Free Shipping or Pickup in Store

Color: Orange/Black
Size: 20"

SN: RM23052

Rocky Mountain 6061 SL Alloy Frame

Sunrace drivetrain

Suntour XCM JR Air, 80mm fork

Rocky Mountain JR25 Tubeless ready wheelset

Shimano TX505 Hubs

Shimano Deore 2-piston brakes

Kenda Amrak 20 x 2.4 front tire

Kenda Amrak 20 x 2.4 rear tire

Rocky Mountain pivotal kids Saddle


The 2023 Rocky Mountain Vertex Jr 20 is a high-quality and versatile mountain bike specifically designed for young riders who are eager to explore off-road trails and develop their riding skills. This bike boasts a range of impressive features that ensure a fun and capable riding experience for young cyclists.

At the heart of the Vertex Jr 20 is the Rocky Mountain 6061 SL Alloy Frame. This frame is constructed from lightweight and durable alloy material, striking a perfect balance between strength and weight. The 6061 SL alloy frame is designed to withstand the demands of off-road riding while providing a comfortable and confidence-inspiring platform for young riders. With its tailored geometry and attention to detail, the frame offers a responsive and agile ride that is ideal for young riders who want to tackle various terrains with ease.

The Vertex Jr 20 is equipped with a reliable Sunrace drivetrain. Sunrace is known for producing components that deliver smooth and precise shifting, and the drivetrain on this bike is no exception. With a range of gears to choose from, young riders can easily adapt to different trail conditions, whether it's conquering steep climbs or enjoying thrilling descents. The Sunrace drivetrain ensures that young riders can maintain their momentum and enjoy a seamless riding experience.

To handle the bumps and rough terrain, the Vertex Jr 20 features a Suntour XCM JR Air fork with 80mm of travel. This air fork provides responsive suspension performance, absorbing impacts and smoothing out the ride for young riders. The adjustable air spring allows for fine-tuning the fork's performance based on the rider's weight and preferences, ensuring optimal comfort and control. The Suntour XCM JR Air fork provides young riders with the confidence to tackle obstacles and enjoy a more enjoyable and controlled ride.

The Rocky Mountain JR25 Tubeless ready wheelset is designed to offer durability, reliability, and lightweight performance. These wheels are specifically built for young riders and feature a smaller diameter to accommodate the bike's frame size. The tubeless-ready design allows riders to run lower tire pressures, providing enhanced traction, better control, and a smoother ride. With the Shimano TX505 hubs, the wheels roll smoothly and efficiently, contributing to an overall enjoyable riding experience for young riders.

The Shimano Deore 2-piston brakes on the Vertex Jr 20 deliver reliable stopping power. These brakes offer precise modulation and consistent performance, allowing young riders to confidently control their speed and navigate the trails with ease. The Shimano Deore brakes are renowned for their durability and low maintenance requirements, making them an excellent choice for young riders who may encounter various trail conditions.

The Kenda Amrak 20 x 2.4 tires on the Vertex Jr 20 provide excellent traction and stability on off-road surfaces. With a width of 2.4 inches, these tires offer ample cushioning and grip, allowing young riders to tackle rough terrains with confidence. The Kenda Amrak tires are designed to provide a balance between traction and low rolling resistance, ensuring that young riders can maintain control and enjoy a smooth ride.

Completing the package is the Rocky Mountain pivotal kids saddle, which is specifically designed for the comfort and ergonomics of young riders. This saddle provides a supportive and comfortable seating position, allowing young riders to focus on the trail ahead and enjoy extended riding sessions without discomfort.

In summary, the 2023 Rocky Mountain Vertex Jr 20 is a top-notch mountain bike designed to meet the needs of young riders who are eager to explore off-road trails. With its lightweight and durable alloy frame, reliable Sunrace drivetrain, responsive Suntour fork, tubeless-ready wheelset, Shimano Deore brakes, capable Kenda tires, and comfortable kids saddle, this bike offers young riders a reliable and enjoyable platform to develop their skills and experience the joy of mountain biking.


  1. Mountain bikes, road bikes, and gravel bikes are fully assembled prior to shipping. Del Sol, E11even, Haro, and Tuesday bikes will ship as received from the original manufacturer in the original manufacturer packaging. All other bikes including kids bikes, cruisers, bmx bikes, etc. may be shipped in the original manufacturers packaging.
  2. While every effort is made to ensure the accuracy of the above information, it is entered by real live humans and humans make mistakes. The majority of the bikes on our website are specced exactly as they come from the manufacturers. Any upgrades or customizations will be listed separately. Please confirm with Airpark Bike Co if there are any questions about the included specification for the bike you are looking at.
  3. Bike component specifications including (but not limited to) suspension, drivetrain, brakes, tires, and wheels are subject to change by the manufacturer without notice.