Budget 🔥 More Gear Btwin ST120, Kids’ Mountain Bike, 20″, Kids 3’11” To 4’5″ 😍

To take on the first slopes, our engineers have equipped this kids’ MTB with 6 speeds. This bike allows the rider to take on sloping terrain.

We have designed this mountain bike for 6-to-9-year-olds (3’11” – 4’5″) wanting to start mountain biking.

Frame designed for mountain biking

Our engineers have designed a new, robust steel frame. The frame’s rear chainstays are short, making the bike responsive and easy to handle.

Why have we created a brake lever specifically for kids?

Because kids have smaller hands than adults, it’s not always easy for them to reach the brake lever. This is why our engineers designed a brake lever that is closer to the handlebars and thus easier to hold.

Changing gear

This bike is equipped with a grip shifter to change between the 6 speeds: an easier, safer system as the kid’s hands stay on the handlebars.
This makes changing gears to match the terrain simple and easy!

A reinforced, ergonomic saddle

A saddle with a sporty design, designed with care to adapt to the morphology of kids. It is equipped with a plastic section on the rear (a bumper) to protect against any impacts.

Controlled braking

2 V-Brake pads for effective braking.
These brakes are composed of calipers that exert more or less pressure on the rim to slow or stop the rotation of the wheels.

Riding position

When mountain biking, it is important to control your path. To make it easier for kids to learn, our engineers installed a handlebar and stem that are combined into a single steering block. This eliminates the needs for adjustments, so they can stay focused on the road!

Crankset

The new chainset has a 140 mm crank that is designed for a kid’s leg length. This chainset allows you to start pedaling more easily. The crank is covered to prevent the kid from coming into contact with the metal part.
The double chain guard prevents the chain from derailing.

20″ wheels and MTB tires

The tires are designed for mountain biking. The lateral lugs provide good grip on turns.
The recommended tire pressure is indicated on the side of the tire (2 to 3.5 bars). 20″ inner tube, 1.7″ to 2.2″ Schrader valve.

MTB fittings

This MTB is equipped with a bell, lighting, wheel reflectors, and platform pedals.

The frame is also compatible with other B’Twin accessories:
– front and rear mudguards
– stand
– bottle cage
– saddle bag
– stabilizers: https://www.decathlon.co.uk/20-and-24-stabilizers-id_8550741.html

Dimensions of the bike ready to use

Length: 140 cm. Height: 80 cm.
Width: 54 cm.

Frame dimensions

Top tube length: 431.6 mm
Seat tube length: 285 mm
Chainstay length: 360 mm
Seat post length: 300 mm
Head angle: 68.8°

Composition

Bike frame : 100.0% Steel

Guarantee

for life (frame, stem, handlebars, rigid fork). Find out more about this bike’s warranty.

Easy to use : Equipped with a grip shifter to easily change gears (6 speeds).

Brake control : New Easy break brake levers are sized for kids’ small hands.

Efficiency : Tires with side lugs for good grip in the turns.

Seat comfort : A saddle with a sporty design, sized especially for kids.