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    DECATHLON

    BTWIN

    Derailleur front 3 x 7/8-speeds 31.8 /34.9 mm high clamp microshift fd-m30

    QAR 16.00 ٥٤.٠٠ر.ق QAR 54.00 QAR 54.00
    Save 70%

    4.5/5

    2 reviews

    4.5/5

    2 reviews

    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) 9 1/2 9 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) 8 1/2 8 1/2 8 1/2 8 3/4 8 3/4 9 9 1/4 9 1/4 9 1/2 9 1/2 9 1/2 9 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) 4 3/4 5 5 1/4 5 1/2 5 3/4 6 6 1/4 6 1/2 6 3/4 7 7 1/4 7 1/2 7 3/4 8 8 1/4 8 1/2 8 3/4 9 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
        In stock
        Home Delivery 2- 4 Days
        Up to 2-year warranty
        Secure Payments

        Product description

        Designed for replacing your triple chainring front derailleur mounted with clamp on 34.9 or 31.8mm frame width

        For gear changing 7 or 8 speeds triple chainsets

        Praline Flavour

        Compatible with Btwin and Shimano 3 X 7/8S shifters, 31.8 / 34.9 mm compatible

        Polybutene

        Supplied with 34.9 to 31.8 adaptor

        Repair

        Repair your bike and give it a new lease of life!

        Description

        Designed for replacing your triple chainring front derailleur mounted with clamp on 34.9 or 31.8mm frame width

        Technical specifications

        Compatible with number of chainrings: 3 Compatible with number of speeds: 7/8 Pull: Top and down Attachment: High collar 31.8 or 34.9 (with adaptors) Maximum chainring size: 42D Derailleur chainstay angle: 66-69 degree Compatible shifters: SRAM, SHIMANO, BTWIN, MICROSHIFT Manufacturer reference: FD-M30

        Maintenance tips:

        Clean your derailleur with slightly warm soapy water. Do not use grease remover products that damage plastics.

        Assembly tips

        When replacing your derailleur, check the conditions of the cables, and if frayed or oxidised we recommend replacing them.

        Need any help?

        The technicians at your Decathlon store are at your service to help you replace your bike parts. Feel free to ask them for help!

        For gear changing 7 or 8 speeds triple chainsets

        Compatibility

        Compatible with Btwin and Shimano 3 X 7/8S shifters, 31.8 / 34.9 mm compatible

        Capacity

        Supplied with 34.9 to 31.8 adaptor

        Repair

        Repair your bike and give it a new lease of life!

        Designed for replacing your triple chainring front derailleur mounted with clamp on 34.9 or 31.8mm frame width

        Designed for replacing your triple chainring front derailleur mounted with clamp on 34.9 or 31.8mm frame width

        Technical specifications

        Compatible with number of chainrings: 3 Compatible with number of speeds: 7/8 Pull: Top and down Attachment: High collar 31.8 or 34.9 (with adaptors) Maximum chainring size: 42D Derailleur chainstay angle: 66-69 degree Compatible shifters: SRAM, SHIMANO, BTWIN, MICROSHIFT Manufacturer reference: FD-M30

        Maintenance tips:

        Clean your derailleur with slightly warm soapy water. Do not use grease remover products that damage plastics.

        Assembly tips

        When replacing your derailleur, check the conditions of the cables, and if frayed or oxidised we recommend replacing them.

        Need any help?

        The technicians at your Decathlon store are at your service to help you replace your bike parts. Feel free to ask them for help!

        For gear changing 7 or 8 speeds triple chainsets

        Compatibility

        Compatible with Btwin and Shimano 3 X 7/8S shifters, 31.8 / 34.9 mm compatible

        Capacity

        Supplied with 34.9 to 31.8 adaptor

        Repair

        Repair your bike and give it a new lease of life!

        Designed for replacing your triple chainring front derailleur mounted with clamp on 34.9 or 31.8mm frame width

        HOME DELIVERY

        2 - 3 DAYS

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