Mongoose Racer X 20'' Kids Bike Blue

Name: Mongoose Racer X 20'' Kids Bike Blue
Brand: Mongoose
SKU: XAACZL78
Price: 419.00 NZD
Availability: InStock

Brand: Mongoose

SKU: XAACZL78

$419.00 Full price

$419.00

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Product Details

Description

The Mongoose Racer X 20-inch Kids Bike is built for confident first rides, with a durable alloy frame and a stable 20-inch wheel setup that feels just right for growing riders. It features a coaster brake with a front brake for reliable stopping, plus a simple single-speed drivetrain that keeps things straightforward as kids learn to pedal and steer. Steel fork and a kids geometry frame help deliver a comfortable, controlled ride for everyday play and neighbourhood exploring. Great for kids who are moving up from learning wheels and want a proper kids bike they can grow with.

Key Features

Alloy Tectonic T1 frame, crossbar design
20-inch wheels with coaster plus front brake
Single-speed drive for easy control
Steel fork and kids-ready crank setup
Hi-ten steel handlebar with kids grips

Specifications

Product Overview

Product

Mongoose Racer X 20'' Kids Bike Blue

Brand

Mongoose

Supplier SKU

MGM55103M20OS

Year Model

2026

Product Features

Frame Material

Alloy

Frame Style

Crossbar

Colour

Blue

Wheel Size

20"

Brake Type

Coaster w/ Front V-Brake

Gears

1 x 1

Fork Material

Steel

Pedals Included

true

Build

Frame

Tectonic T1, Aluminium, 20" Kids geometry, 100 mm dropout

Fork

Mongoose, 20", Steel Steerer, 100 mm, bolt-on

Handlebars

Mongoose, Hi-Ten Steel, 580 mm width, 176 mm rise, 22.2 mm clamp

Headset

Threaded, EC22.2/27, retainer bearing

Grips

Mongoose, Kids

Stem

Aluminum/Steel, Quill, 50 mm ext., 22.2 mm clamp

Bottom Bracket

Internal, 1-Piece, American, 68 mm shell

Pedals

Kids, Plastic

Saddle

Mongoose Kids, Integrated Rails

Seat Post

Steel, 250 mm, Integrated Saddle, 27.2 mm

Wheels

Wheel Size

20"

Rims

Aluminum Single Wall, 28H

Hubs

Steel, 3/8 In Axle, 28H

Tyres

Mongoose, 20 in x 2.125 in, Wire bead

Groupset

Crankset

Mongoose 1-Piece narrow Q-factor, 32T

Chain

KMC Z410

Brakes

F: Aluminum Caliper / R: Steel Coaster Brake

Cassette

Single Speed

Cassette Model

Single-Speed, 16T

Frequently Asked Questions

What is the Mongoose Racer X 20'' Kids Bike used for?

The Mongoose Racer X 20-inch Kids Bike is used for everyday riding, practice sessions, and cruising around the neighbourhood as kids learn core bike skills.

Why choose the Mongoose Racer X 20'' Kids Bike?

Choose the Mongoose Racer X 20-inch Kids Bike for its durable alloy frame, reliable coaster plus front braking, and an easy single-speed setup that suits early riding confidence.

Who is the Mongoose Racer X 20'' Kids Bike designed for?

The Mongoose Racer X 20-inch Kids Bike is designed for kids who are ready for a 20-inch kids bike, with a setup that works well for learners and can pair with training wheels during the early stages.

Find Your Size

Step 1: Measure your height

Take off your shoes
Stand with your back straight against a wall
Balance a book on your head to mark your height on the wall
Measure your height by the distance from the floor to the mark

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Step 2: Adjust your inseam

Based on your height, we’ve calculated a starting point.
You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
Inseam typically falls with 5cm of the average.

Your inseam: