Rockrider ST 120 Kids' 20-Inch 6-9 Years Mountain Bike - White/Blue
4.6
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.
ID 8405034
Home & store delivery
Unavailable
Pick up today at Decathlon
365 days to return for members
Features
Design benefits
ease of use
Equipped with a grip shifter to easily change gears (6 speeds).
brake control
New Easy break brake levers are sized for children's small hands.
efficiency
Tyres with side lugs for good grip in the turns.
cycling comfort
A saddle with a sporty design, sized especially for kids.
Design details
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 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°
PHOTOS NON BINDING
For the drive train parts (freewheel and derailleur), the photos or videos provided on the product description show a Shimano derailleur and a Spark freewheel. However, because of procurement issues, an equivalent, derailleur and cassette from a different brand may be present on the bike.
Specifications
Details
frequency
occasional
suspension
stiff
power assisted
without electric assistance
stand
without stand
number of speeds
6 speeds
bike frame material
steel frame
mudguard
without mudguard
number of chainrings
single chainring
wheel size
20"
stem type
headset, quill
type of brakes
vbrakes
age
6 to 9 years
sportsperson's height
1.20 m < height < 1.35 m
connected
not connected
condition
new
weight (in kg)
11.5 kg
handlebar width
520 mm
rim material
aluminium
rim type
single thickness
maximum load
80 kg
handlebar diameter
22.2 mm
number of bottle-cage holders
1
seatpost compatibility
telescopic seatpost not compatible
trunk bag fixation
no trunk bag fixation
tubeless compatibility (tyre)
non tubeless compatible
tubeless compatibility (wheel)
non tubeless compatible
type of seatpost
rigid
crankset
36
charger type
not concerned
battery capacity (in Wh)
not concerned
motor position
not concerned
engine torque maximum
not concerned
removable battery
not concerned
crank length (in mm)
140 mm
front suspension travel
not concerned
rear suspension travel
not concerned
built-in battery
not concerned
autonomy (in km)
not concerned
Composition
Frame: 100.0% Steel
Usage & care
Care instructions
Usage precautions
We recommend wearing a helmet.Maximum weight in use 80kg
Storage
Store the bike in a clean, dry place. Clean and grease the chain regularly. Our tips for before each ride: inflate the tyres to the pressure indicated on the sidewall.