KidsVerified spec

2021 Rocky Mountain Vertex Jr 20

Launched at $709Lists today at $739 (2026-09)

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What a used one is worth

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New

$396

$256 to $477

Like new

$376

$243 to $453

Excellent

$357

$230 to $430

Good

$297

$192 to $358

Fair

$218

$141 to $263

For parts

$119

$77 to $143

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Overview

Brand: Rocky Mountain
Model family: Vertex
Model year: 2021
Category: Kids · xc
Frame material: aluminum
Sizes: One size
Wheel size: 20
Launch MSRP (US): $709
Current list price: $739 (as of 2026-09)

Drivetrain

Groupset: SRAM X4
Electronic: false

Build

Fork: Suntour XCM JR Air 80mm
Stem: Rocky Mountain XC | 7° Rise | All Sizes = 40mm
Tires: F: Kenda Amrak 20 x 2.4 // R: Kenda Amrak 20 x 2.4
Brakes: Shimano MT200 2 Piston | Organic Pads | Shimano RT10 160mm F Rotor | Shimano RT10 160mm R Rotor
Saddle: Rocky Mountain Pivotal Kids
Wheels: Rocky Mountain JR25 Tubeless | Tubeless Compatible - Tape | Valves | Sealant Not Incl rims; hubs: Shimano TX505 / Shimano TX505 QR
Cassette: SunRace CSM98 11-36T
Crankset: Rocky Mountain Microdrive 28T
Seatpost: Rocky Mountain Pivotal 27.2mm
Shifters: Sram X5
Handlebar: Rocky Mountain XC | 600mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 31.8mm Clamp
Rear derailleur: Sram X4
Travel front mm: 80

Geometry

20": Reach mm: 323; Stack mm: 428; Chainstay mm: 347; Wheelbase mm: 872; Head angle deg: 68; Seat angle deg: 71

Launch price read from Rocky Mountain's US model-year page captured 2020-09 (inside the model year). list_price_usd is the later price Rocky Mountain's archive page shows today.

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