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DECATHLON

BTWIN

Rockrider ST 100 Kids' 24-Inch 9-12 Years Mountain Bike - White

Sale priceDhs. 615.00

Size Guide

MEN SIZE GUIDE 

 

How to measure:

  • Head size: Wrap a tape measure horizontally around your head just below your eyebrows.
  • Chest size: Wrap a tape measure horizontally around the widest part of your chest.
  • Waist size: Wrap a tape measure horizontally around the widest part of your waist.
  • Hand size: Wrap a tape measure horizontally around your hand, starting from your thumb.
  • Shoe size: Place your heels flush against a wall. Place a heavy object (such as a book) against your toes. Measure the distance between the wall and the object.

TOPS (T-SHIRT, PULLOVER, JACKET)
 Size XS S M L XL 2XL 3XL 4XL
Chest (cm) 84-87 88-91 92-95 96-103 104-113 114-123 124-135 136-146

 

BOTTOMS (SHORTS, PANTS, BOARDSHORTS)
 Size XS S M L XL 2XL 3XL
Hips (cm) 84-86  87-91  92-97 98-104 105-111 112-118 119-126

 

SWIMWEAR
 Size S M M-L L L-XL XL XL-2XL 2XL
Hips (cm) 84-87 88-91 92-95 96-103 104-113 114-123 124-135 136-146

 

WOMEN SIZE GUIDE

 

How to measure:

  • Head size: Wrap a tape measure horizontally around your head just above your eyebrows.
  • Chest size: Wrap a tape measure horizontally around the widest part of your chest.
  • Band size: Wrap a tape measure horizontally around your torso just below your breasts.
  • Waist size: Wrap a tape measure horizontally around the widest part of your waist.
  • Hip size: Wrap a tape measure horizontally around the largest part of your hips.
  • Hand size: Wrap a tape measure horizontally around your hand, starting from your thumb.
  • Shoe size: Place your heels flush against a wall. Place a heavy object (such as a book) against your toes. Measure the distance between the wall and the object.
    TOPS (T-SHIRT, PULLOVER, JACKET)
    Size 3XS 2XS XS S M M-L L L-XL XL XL-2XL 2XL
    Chest (cm) 76-79 80-83 84-87 88-91 92-95 96-99 100-103 104-107 108-113    114-118 119-123
     
    BOTTOMS (SHORTS, PANTS)
     Size 3XS 2XS XS S M L XL 2XL 3XL
    Hips (cm) 81-85 86-90 91-96 97-102 103-108 109-114  115-120 121-128 129-136

     

    BRA
    Size 70A 70B 70C 70D 75A 75B 75C 75D 75E 80A 80B 80C 80D 80E 85B 85C 85D 85E
    Chest size (cm) 80-86 80-86 80-86 80-86 86-92 86-92 86-92 86-92 86-92 92-100 92-100 92-100 92-100 92-100 100-106 100-106 100-106 100-106

     

    SWIMWEAR
    Size XS S M M-L L L-XL XL XL-2XL 2XL
    Hips (cm) 90-93 94-97 98-101 102-105 106-109 110-113 114-119 120-125 126-131

     

    KIDS SIZE GUIDE

     

     

    How to measure:

    • Clothing size: Stand upright and place your bare heels flush against a wall. Measure the distance between the bottom of your foot and the top of your head.
    • Head size: Wrap a tape measure horizontally around your head just above your eyebrows.
    • Hand size: Wrap a tape measure horizontally around your hand, starting from your thumb.
    • Shoe size: Place your heels flush against a wall. Place a heavy object (such as a book) against your toes. Measure the distance between the wall and the object.

     

      APPAREL
      Age 3 Months 6-9 Months 9-12 Months 18 Months 2 Years 3 Years 4 Years 5 Years 6 Years 8 Years 10 Years 12 Years 14 Years
      Height (cm) 56-63 64-70 71-76 77-82 83-89 90-97 98-104 105-114 115-124 125-132 133-142 143-152 153-162

       

      SHOES SIZE GUIDE

      MEN SHOES
      US Size 6.5 7 7.5 7.5 8 8.5 9 9.5 9.5 10 10.5 11 11.5 11.5 12 12.5 13
      EU Size 39 39.5 40 40.5 41 41.5 42 42.5 43 43.5 44 44.5 45 45.5 46 46.5 47
      Foot Length (in) 1/2 3/4 10 10 10 1/4 10 1/2 10 1/2 10 1/2 10 3/4 10 3/4 11 11 1/4 11 1/4 11 1/2 11 1/2 11 1/2 11 3/4

       

      WOMEN SHOES
      US Size 4 4.5 5 5.5 5.5 6 6.5 7 7.5 7.5 8 8.5 9 9 9.5 10 10.5
      EU Size 34 34.5 35 35.5 36 36.5 37 37.5 38 38.5 39 39.5 40 40.5 41 41.5 42
      Foot Length (in) 1/2 1/2 1/2 3/4 3/4 9 1/4 1/4 1/2 1/2 1/2 3/4 10 10 10 1/4 10 1/2 10 1/2

       

      KIDS SHOES
      US Size 4.5C 5C 5.5C 6C 7C 7.5C 8.5C 9C 10C 11.5C 12.5C 13C 1 2 2.5 3.5 4 5
      EU Size 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
      Foot Length (in) 3/4 5 1/4 1/2 3/4 6 1/4 1/2 3/4 7 1/4 1/2 3/4 8 1/4 1/2 3/4 1/4

       

      GEAR SIZE GUIDE

      KIDS BIKES
      Bike size 12" 14" 16" 20" 24"
      Kids height (cm) 75-​90 90-​105 105-120 120-135 135-155
      kids height (ft) 2'5'' - 3' 3' - 3'5'' 3'5'' - 3'11'' 3'11''- 4'5'' 4'5'' - 5'1''

       

      ROAD BIKES
      Bike size 48 (XS) 51 (S) 54 (M) 57 (L) 60 (XL)
      Your height (cm) 135-150 150-165 165-176 176-184 184-195

       

      MOUNTAIN BIKES
      Bike size XS S M L XL
      Your height (cm) 135-150 150-165 165-176 176-184 184-195

       

      SKIS
      Ski size 115-130 125-140 130-145 135-150 135-155 145-165 150-170 155-175 160-180 165-185 170-190 175-195 180-200
      Your height (cm) 132 137 142 147 152 158 163 168 173 178 183 188 193

       

      SNOWBOARDS
      Snowboard size 128-136 133-141 139-147 144-152 149-157 154-162 159-167 160+ 160+ 160+
      Your height (cm) 147 152 158 163 168 173 178 183 188 193
      Your weight (lb) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 90-95 95-100

       

      ACCESSORIES SIZE GUIDE

      KIDS GLOVES
      Glove size 4 Years 6 Years 8 Years 10 Years 12 Years 14 Years
      Hand size (cm) 13.9-14.9 14.9-15.9 15.9-16.9 16.9-17.8 17.8-18.6 18.6-19.5

       

      ADULT GLOVE
      Glove size XS S M L XL 2XL 3XL
      Hand size (cm) 20.3-20.8 20.9-21.4 21.5-22.1 22.2-22.7 22.8-23.4 23.5-24 24.1-24.7

       

      BOXING GLOVES
      Glove size 6oz 8oz 10oz 12oz 14oz
      Your weight (lb) 77-99 99-143 143-172 172-198 >198
      Color : blue
      Size: 24"
      Ref: 8405039
      Only 1 unit left

      Product description

      We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) who want to start mountain biking.

      We've designed this robust, easy to use (1 chainring) 24-inch children's MTB for helping children to get started with mountain biking.

      Ease of use

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

      Speaker

      Two V-Brake pads for effective braking.

      Efficiency

      Tyres with side lugs for good grip in the turns.

      Cycling comfort

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

      Description

      We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) who want to start mountain biking.

      A frame that is suitable 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.

      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.

      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!

      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

      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.

      Crankset

      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 double chain guard prevents the chain from derailing.

      24"" wheels and MTB 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 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). 24"" inner tube, 1.7"" to 2.2"" Schrader valve.

      Bike accessories

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

      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: 478.6 mmSeat tube length: 345 mmChainstay length: 415 mmSeat post length: 300 mmHead angle: 68.2°

      We’ve designed this robust easy to use (1 chainring) 24-inch children’s MTB for helping children to get started with mountain biking.

      Ease of use

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

      Speaker

      Two V-Brake pads for effective braking.

      Efficiency

      Tyres with side lugs for good grip in the turns.

      Cycling comfort

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

      We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) who want to start mountain biking.

      We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) who want to start mountain biking.

      A frame that is suitable 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.

      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.

      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!

      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

      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.

      Crankset

      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 double chain guard prevents the chain from derailing.

      24"" wheels and MTB 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 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). 24"" inner tube, 1.7"" to 2.2"" Schrader valve.

      Bike accessories

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

      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: 478.6 mmSeat tube length: 345 mmChainstay length: 415 mmSeat post length: 300 mmHead angle: 68.2°

      We’ve designed this robust easy to use (1 chainring) 24-inch children’s MTB for helping children to get started with mountain biking.

      Ease of use

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

      Speaker

      Two V-Brake pads for effective braking.

      Efficiency

      Tyres with side lugs for good grip in the turns.

      Cycling comfort

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

      We have designed this mountain bike for 9- to 12-year-olds (135 to 150 cm) who want to start mountain biking.

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