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ROCKRIDER

Kids' 24" 9-12 years mtb expl 500

Dhs. 1,425.00

Size Guide

Size Guide

Size Guide

MEN’S
Tops
Size Chest (in) Waist (in)
XS 33.1 – 34.3 27.6 – 28.7
S 34.6 – 35.8 29.1 – 30.3
M 36.2 – 37.4 30.7 – 31.9
L 37.8 – 40.6 32.3 – 35.0
XL 40.9 – 44.5 35.4 – 39.4
2XL 44.9 – 48.4 39.8 – 43.7
3XL 48.8 – 53.1 44.1 – 48.4
Bottoms
Size Low hip (in) Waist (in)
XS 31.5 – 33.5 26.0 – 28.0
S 33.9 – 35.8 28.3 – 30.3
M 36.2 – 38.2 30.7 – 32.7
L 38.6 – 40.9 33.1 – 35.0
XL 41.3 – 43.7 35.4 – 38.2
2XL 44.1 – 46.5 38.6 – 41.3
3XL 46.9 – 49.6 41.7 – 44.5
HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Chest: Wrap a tape measure around your back and measure the fullest part of your chest. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

WOMEN’S
Tops
Size Low hip (in) Waist (in)
2XS 31.5 – 32.7 22.8 – 24.4
XS 33.1 – 34.3 24.4 – 25.6
S 34.6 – 35.8 26.0 – 27.2
M 36.2 – 37.4 27.6 – 28.7
L 37.8 – 40.6 29.1 – 33.1
XL 40.9 – 44.5 33.5 – 37.8
2XL 44.9 – 48.4 38.2 – 42.5
Bottoms
Size Low hip (in) Waist (in)
2XS 31.1 – 33.5 23.6 – 24.8
XS 33.5 – 35.4 25.2 – 26.8
S 35.4 – 37.8 27.2 – 28.7
M 37.8 – 40.2 29.1 – 31.1
L 40.2 – 42.5 31.5 – 33.9
XL 42.5 – 44.9 34.3 – 36.6
2XL 44.9 – 47.2 37.0 – 39.4
Bra
Size Bust (in) Underbust (in)
2XS 30.7 – 31.5 24.8 – 26.4
XS 31.5 – 33.5 24.8 – 28.3
S 33.5 – 35.4 26.8 – 30.3
M 35.4 – 37.4 28.7 – 32.3
L 37.4 – 39.4 30.7 – 34.3
XL 39.4 – 41.3 32.7 – 36.2
2XL 41.3 – 43.3 34.6 – 38.2
HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Bust: Wrap a tape measure around your back and measure the fullest part of your bust. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

Underbust: Directly below the bust. wrap a tape measure around the ribcage. Make sure it's straight and parallel to the floor. Raise your head, tighten the tape and breathe normally.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hips: Wrap a tape measure around the fullest part of your hips.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

KIDS’
Boys
Age Height (in) Chest (in) Waist (in) Low hip (in)
6 months 24.0 – 27.2 16.5 – 16.9 14.6 – 15.2 16.5 – 17.1
9 months 27.6 – 28.3 16.9 – 17.3 15.2 – 15.6 17.1 – 17.7
12 months 28.7 – 29.5 17.3 – 17.7 15.6 – 16.1 17.7 – 18.5
18 months 29.9 – 31.9 18.1 – 18.5 16.3 – 16.9 18.5 – 19.3
24 months 32.3 – 34.6 18.9 – 19.3 17.3 – 18.1 19.3 – 20.3
2 – 3 years 35.0 – 37.4 19.7 – 20.1 18.1 – 18.9 20.3 – 20.9
3 – 4 years 37.8 – 40.2 20.5 – 21.3 19.3 – 20.1 21.3 – 22.4
4 – 5 years 40.6 – 44.1 21.7 – 22.4 20.1 – 20.9 22.8 – 24.0
5 – 6 years 44.5 – 48.0 22.8 – 23.6 20.9 – 21.7 24.4 – 25.6
7 – 8 years 48.4 – 51.2 24.4 – 24.8 21.7 – 22.4 26.0 – 27.2
8 – 9 years 51.6 – 55.1 25.2 – 26.4 22.8 – 23.6 27.6 – 28.7
10 – 11 years 55.5 – 59.1 26.8 – 28.7 24.0 – 25.2 29.1 – 30.3
12 – 13 years 59.4 – 63.0 29.1 – 31.5 25.6 – 27.2 30.7 – 33.1
14 – 15 years 63.4 – 67.7 31.9 – 34.6 27.6 – 29.1 33.5 – 35.8
Girls
Age Height (in) Chest (in) Waist (in) Low hip (in)
6 months 24.0 – 27.2 15.4 – 16.9 13.4 – 15.2 15.4 – 17.1
9 months 27.6 – 28.3 16.9 – 17.3 15.2 – 15.6 17.1 – 17.7
12 months 28.7 – 29.5 17.3 – 17.7 15.6 – 16.1 17.7 – 18.5
18 months 29.9 – 31.9 18.1 – 18.5 16.3 – 16.9 18.5 – 19.3
24 months 32.3 – 34.6 18.9 – 19.3 17.3 – 18.1 19.3 – 20.3
2 – 3 years 35.0 – 37.4 19.7 – 20.1 18.1 – 18.9 20.3 – 20.9
3 – 4 years 37.8 – 40.2 20.5 – 21.3 19.3 – 20.1 21.3 – 22.4
4 – 5 years 40.6 – 44.1 21.7 – 22.4 20.1 – 20.9 22.8 – 24.0
5 – 6 years 44.5 – 48.0 22.8 – 23.6 20.9 – 21.7 24.4 – 25.6
7 – 8 years 48.4 – 51.2 24.4 – 24.8 21.7 – 22.4 26.0 – 27.2
8 – 9 years 51.6 – 55.1 25.2 – 26.4 22.8 – 23.6 27.6 – 28.7
10 – 11 years 55.5 – 58.3 26.8 – 28.0 24.0 – 24.8 29.1 – 31.9
12 – 13 years 58.7 – 62.6 28.3 – 31.9 25.2 – 26.4 32.3 – 35.0
14 – 15 years 63.0 – 65.4 32.3 – 33.9 26.8 – 28.0 35.4 – 36.6
HOW TO MEASURE:

Height:Stand against a wall, barefoot or in socks, heels pasted to the wall. Stand right, then hold a book or flat object on the top of your head. Block the book, mark the bottom edge of the book. Measure the distance from the floor to the mark.

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

FOOTWEAR
Men's Footwear
US Size Foot length (in) EU Size Foot length (cm)
6 9.6 38.5 24.5
6.5 9.6 39 24.5
7 9.8 39.5 25
7.5 10 40 25.5
7.5 10 40.5 25.5
8 10.2 41 26
8.5 10.4 41.5 26.5
9 10.4 42 26.5
9.5 10.6 42.5 27
9.5 10.8 43 27.5
10 11 43.5 27.5
10.5 11 44 28
11 11.2 44.5 28.5
11.5 11.2 45 28.5
11.5 11.4 45.5 29
12 11.6 46 29.5
12.5 11.6 46.5 29.5
Women's Footwear
US Size Foot length (in) EU Size Foot length (cm)
4 8.25 34 20.8
4.5 8.5 34.5 21.3
5 8.7 35 22
5.5 8.9 35.5 22.5
5.5 8.9 36 22.5
6 9.1 36.5 23
6.5 9.3 37 23.5
7 9.3 37 23.5
7.5 9.4 38 24
7.5 9.6 38.5 24.5
8 9.6 39 24.5
8.5 9.8 39.5 25
9 10 40 25.5
9 10 40.5 25.5
9.5 10.2 41 26
10 10.4 41.5 26.5
10.5 10.4 42 26.5
Unisex Footwear
Women's / Men's US Size Foot length (in) EU Size Foot length (cm)
W5 / M3.5 8.6 35 21.9
W5.5 / M4 8.9 36 22.5
W6 / M4.5 9.1 36.5 23
W6.5 / M5 9.3 37 23.5
W7 / M5.5 9.3 37.5 23.5
W7.5 / M6 9.4 38 24
W8 / M6.5 9.6 39 24.5
W8.5 / M7 9.8 39.5 25
W9 / M7.5 10 40 25.5
W9.5 / M8 10.2 41 26
W10 / M8.5 10.4 41.5 26.5
W10.5 / M9 10.4 42 26.5
W11 / M9.5 10.8 43 27.5
W11.5 / M10 11 43.5 27.5
W12 / M10.5 11 44 28
W12.5 / M11 11.2 44.5 28.5
W13 / M11.5 11.2 45 28.5
W14 / M12 11.6 46 29.5
W15 / M13 11.8 47 30
W16 / M13.5 12 48 30.5
HOW TO MEASURE:

Foot length:Stand against a wall, heels touching the wall. Put an object (e.g. book...) against your longest toe. Measure the length between the wall and the object. Repeat this process for the other foot. If the lengths are different, choose the largest.

ACCESSORIES
Headwear (Caps, Beanies, Hats)
US Size Head (in)
2XS 18.5 – 19.7
XS 19.7 – 20.9
S 20.9 – 22.0
M 22.0 – 23.2
L 23.2 – 24.4
Helmets
US Size Head (in)
2XS 17.3 – 19.3
XS 18.5 – 20.5
S 20.5 – 21.7
M 21.7 – 23.2
L 23.2 – 24.4
Gloves
Size Palm perimeter (in) Hand length (in)
2XS 7.0 – 7.3 6.3 – 6.6
XS 7.3 – 7.6 6.7 – 6.9
S 7.6 – 7.9 7.0 – 7.2
M 8.0 – 8.2 7.2 – 7.4
L 8.3 – 8.5 7.4 – 7.7
XL 8.6 – 8.9 7.7 – 7.9
2XL 8.9 – 9.2 8.0 – 8.1
3XL 9.2 – 9.5 8.2 – 8.4
HOW TO MEASURE:

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

BIKES
Kids' Bikes
Bike size Height (ft)
12" 2'5" – 3'0"
14" 3'0" – 3'5"
16" 3'5" – 3'11"
20" 3'11" – 4'5"
24" 4'5" – 5'1"
Road & Gravel Bikes
Bike size Height (ft)
XS 5'1" – 5'5"
S 5'5" – 5'8"
M 5'8" – 5'11"
L 5'11" – 6'2"
XL 6'2" – 6'7"
Mountain Bikes
Bike size Height (ft)
S 4'11" – 5'5"
M 5'5" – 5'9"
L 5'9" – 6'0"
XL 6'0" – 6'7"
Color : Unique
Size: 24"
Ref: 8733739
In stock
Home Delivery 4 - 6 Days
Up to 2-year warranty
Secure Payments
Description

We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) wanting to regularly go mountain biking.

Dimensions of the bike ready to use:

Length: 160cm. Height: 100cm. Width: 56cm.

Front suspension to cushion unpredictable terrain:

Take on new challenging terrain (roots, stones, gravel, etc.) with ease thanks to the 50 mm travel of the front suspension fork.

A 7-speed drive train designed for kids:

This bike is equipped with our innovative Easytrigger shifter, designed to make it easy to shift between the 7 speeds. The 7-speed derailleur allows you to switch gears on the 14/34 freewheel. The 34-tooth chainset has 152 mm cranks and is equipped with a double chainguard to prevent derailment.

Photos non-binding:

For the drive train parts (freewheel and derailleur), the photos or videos provided on the product description show a particular model of derailleur and freewheel. However, because of procurement issues, an equivalent derailleur and cassette from a different brand may be present on the bike.

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 cover at the back (a bumper) to protect from any impacts.

Weight:

14.3 kg

A frame that is adapted for mountain biking:

Our engineers have designed this sturdy steel frame. The frame's rear chainstays are short, making the bike responsive and easy to handle.

Frame dimensions:

Top tube length: 478.6 mm Seat tube length: 345 mm Chainstay length: 415 mm Seat post length: 300 mm Head angle: 68.2°

24" wheels and all-terrain tyres:

To transport the bike, we’ve made it easy to remove and attach the front wheel. It is equipped with a quick-release system. The 24x1.95 lugged tyres provide traction and comfort. The recommended tyre pressure is displayed on the tyre sidewall (between 2 and 3.5 bar). The 24" inner tube is compatible with cross-sections of 1.7 to 2.2. It has a Schrader valve.

Look after your child's bike!

Look after your child's bike so that it's always ready for a new adventure! To ensure full maintenance, we recommend that you follow these 3 steps: 01 Degrease your drive train 02 Clean your bike 03 Lubricate your chain 3 steps that 3 require 3 products that can be found in our bike cleaning kit (8751194), that will become your best friend!

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 chainset with cranks adapted to children:

The new chainset has a 152 mm crank that is adapted to the length of your child's leg. This chainset allows you to start pedalling more easily. The crank is covered with a guard to stop you coming into contact with the metal part.

Ordering online:

For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)

A comfortable cycling position:

To provide you with maximum comfort, this mountain bike is equipped with a high-rise stem. Your position on the bike is slightly raised so you can better anticipate your trajectory.

This bike can be equipped:

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 - kickstand - bottle cage and bottle - bag - stabilisers

To ensure riders can easily overcome rough terrain, we've equipped this 24-inch MTB with a suspension fork. Easily tackle hilly paths with 7 speeds.

We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) wanting to regularly go mountain biking.

We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) wanting to regularly go mountain biking.

Dimensions of the bike ready to use:

Length: 160cm. Height: 100cm. Width: 56cm.

Front suspension to cushion unpredictable terrain:

Take on new challenging terrain (roots, stones, gravel, etc.) with ease thanks to the 50 mm travel of the front suspension fork.

A 7-speed drive train designed for kids:

This bike is equipped with our innovative Easytrigger shifter, designed to make it easy to shift between the 7 speeds. The 7-speed derailleur allows you to switch gears on the 14/34 freewheel. The 34-tooth chainset has 152 mm cranks and is equipped with a double chainguard to prevent derailment.

Photos non-binding:

For the drive train parts (freewheel and derailleur), the photos or videos provided on the product description show a particular model of derailleur and freewheel. However, because of procurement issues, an equivalent derailleur and cassette from a different brand may be present on the bike.

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 cover at the back (a bumper) to protect from any impacts.

Weight:

14.3 kg

A frame that is adapted for mountain biking:

Our engineers have designed this sturdy steel frame. The frame's rear chainstays are short, making the bike responsive and easy to handle.

Frame dimensions:

Top tube length: 478.6 mm Seat tube length: 345 mm Chainstay length: 415 mm Seat post length: 300 mm Head angle: 68.2°

24" wheels and all-terrain tyres:

To transport the bike, we’ve made it easy to remove and attach the front wheel. It is equipped with a quick-release system. The 24x1.95 lugged tyres provide traction and comfort. The recommended tyre pressure is displayed on the tyre sidewall (between 2 and 3.5 bar). The 24" inner tube is compatible with cross-sections of 1.7 to 2.2. It has a Schrader valve.

Look after your child's bike!

Look after your child's bike so that it's always ready for a new adventure! To ensure full maintenance, we recommend that you follow these 3 steps: 01 Degrease your drive train 02 Clean your bike 03 Lubricate your chain 3 steps that 3 require 3 products that can be found in our bike cleaning kit (8751194), that will become your best friend!

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 chainset with cranks adapted to children:

The new chainset has a 152 mm crank that is adapted to the length of your child's leg. This chainset allows you to start pedalling more easily. The crank is covered with a guard to stop you coming into contact with the metal part.

Ordering online:

For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)

A comfortable cycling position:

To provide you with maximum comfort, this mountain bike is equipped with a high-rise stem. Your position on the bike is slightly raised so you can better anticipate your trajectory.

This bike can be equipped:

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 - kickstand - bottle cage and bottle - bag - stabilisers

To ensure riders can easily overcome rough terrain, we've equipped this 24-inch MTB with a suspension fork. Easily tackle hilly paths with 7 speeds.

We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) wanting to regularly go mountain biking.