Choose Your Bike

PRODUCT VIDEOPRODUCT VIDEO
arrow arrow
PRODUCT VIDEOPRODUCT VIDEO
Product Video PRODUCT VIDEO
BTWIN

Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue

Reference: 8405034
GHS1,200.00
More colors

Only one color available

Size
Unique Size
Quantity
Last items in stock
Last items in stock

Made for We have designed this mountain bike for 6- to 9-year-olds (120 to 135 cm) who want to start mountain biking.
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.

Close

Decathlon Stores Near to youDecathlon Stores Near to you

Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue

PRODUCT-2 BENEFITS

329c087b-f034-47ba-8dc7-7748c83a8748.jpg

Ease of use

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

be46a8df-dd81-4a30-b55c-2c85124c0c47.jpg

Brake control

New Easy break brake levers are sized for children's small hands.

2536890f-3e11-4c48-a23b-950b9ac0ff1f.jpg

Efficiency

Tyres with side lugs for good grip in the turns.

a6e91d05-f85e-4c2c-bc96-1c06c82cae13.jpg

Cycling comfort

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

PRODUCTS VIDEO

PRODUCT-1 DETAILS

Gender
KIDS
Sport practices
MOUNTAIN BIKES
SUSPENSION
  • Without suspension
STAND
  • Without stand
MUDGUARD
  • Without mudguard
NUMBER OF SPEEDS
  • 6 speeds
TYPE OF BIKE FRAME
  • Steel frame
TYPE OF BRAKES
  • vBrakes
NUMBER OF CHAINRINGS
  • Single chainring
WHEEL SIZE
  • 20"
AGE
  • 6 to 9 years
SPORTS PERSON'S HEIGHT
  • 1.20 m < Height < 1.35 m
FREQUENCY
  • Occasional
Colours
 
 
Frame designed for mountain biking
Our engineers have designed a new sturdy 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 children?
Because children 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 child's hands stay on the handlebars. This makes changing gears to match the terrain simple and easy!
Controlled braking
Two V-Brake pads for effective braking. These brakes are composed of callipers that exert more or less pressure on the rim to slow or stop the rotation of the wheels.
A reinforced, ergonomic saddle
A saddle with a sporty design, designed with care to adapt to the morphology of children. It is equipped with a plastic section on the rear (a bumper) to protect against any impacts.
Riding position
When mountain biking, it is important to control your path. To make it easier for children 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 child's leg length. This chainset allows you to start pedalling more easily. The crank is covered to prevent the child from coming into contact with the metal part. The double chain guard prevents the chain from derailing.
20" wheels and MTB tyres
The tyres are designed for mountain biking. The lateral lugs provide good grip on turns. The recommended tyre pressure is indicated on the side of the tyre (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 - stabilisers: https://www.decathlon.co.uk/20-and-24-stabilisers-id_8550741.html
Dimensions of the bike ready to use
Length: 140cm. Height: 80cm. Width: 54cm.
What if I order online?
For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)
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°
Storage advice
Store the bike in a clear, dry place. Clean and grease the chain regularly. Our tips for before each ride: inflate the tyres to the pressure indicated on the sidewall.
Composition
Frame : 100.0% Steel
Frame designed for mountain biking
Our engineers have designed a new sturdy 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 children?
Because children 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 child's hands stay on the handlebars. This makes changing gears to match the terrain simple and easy!
Controlled braking
Two V-Brake pads for effective braking. These brakes are composed of callipers that exert more or less pressure on the rim to slow or stop the rotation of the wheels.
A reinforced, ergonomic saddle
A saddle with a sporty design, designed with care to adapt to the morphology of children. It is equipped with a plastic section on the rear (a bumper) to protect against any impacts.
Riding position
When mountain biking, it is important to control your path. To make it easier for children 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 child's leg length. This chainset allows you to start pedalling more easily. The crank is covered to prevent the child from coming into contact with the metal part. The double chain guard prevents the chain from derailing.
20" wheels and MTB tyres
The tyres are designed for mountain biking. The lateral lugs provide good grip on turns. The recommended tyre pressure is indicated on the side of the tyre (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 - stabilisers: https://www.decathlon.co.uk/20-and-24-stabilisers-id_8550741.html
Dimensions of the bike ready to use
Length: 140cm. Height: 80cm. Width: 54cm.
What if I order online?
For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)
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°

Filters Filters

Sort Filters
Filters Filter Filters