Skip to content

Cart

Your cart is empty

Image
Image
Image
Image
Image
Image
Image
Image
Image
Image

Product description

This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

Discover the effectiveness and playful side of the ST 540 V2 mountain bike with its 100mm hydraulic fork, hydraulic disc brakes, and the reactivity of the 10-speed single chainring.

ROCKRIDER

Mountain Bike ST 540 V2 27.5" - Blue

Sale priceQAR 2,699.00 2,699.00ق.ر
Sold out

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

      Product description

      This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

      Discover the effectiveness and playful side of the ST 540 V2 mountain bike with its 100mm hydraulic fork, hydraulic disc brakes, and the reactivity of the 10-speed single chainring.

      Description

      This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

      WHAT SIZE MOUNTAIN BIKE TO CHOOSE?

      Several sizes available: S: between 1.50m and 1.64m M: between 1.65m and 1.74m L: between 1.75m and 1.84m XL: between 1.85 m and 2.00 m If you are on the limit between 2 sizes: Choose the smaller size for easier steering (easier to handle) and comfort (straighter back). Choose the larger size for easier pedalling with a more stretched-out position (position more suited to performance).

      UNISEX FRAME

      With a heavily sloped top tube and a wide range of sizes (from S: 1.50 m to XL: 2 m), The ST 540 V2 mountain bike frame is UNISEX. The ST 540 V2 mountain bike also exists in a WOMEN'S variant V1: fitted seat, narrower handlebar, shorter stem, fork with a more flexible spring, and brake levers that are closer together. As a woman, if you choose the men's model, we recommend at least purchasing the Women's Sport 500 saddle which is fitted to the female form.

      A WORD FROM THE TEAM

      We created this ST 540 V2 mountain bike entirely at our B'Twin Village (Lille, France) for mountain biking enthusiasts. A comfortable, efficient mountain bike: more progressive, powerful hydraulic disc brakes, 100mm hydraulic fork to easily and sensitively ride over obstacles, and simple and high-performance single chainring... MTBers have been involved at every stage of this bike's development process.

      A COMFORTABLE, PLAYFUL FRAME

      For less weight and more efficient pedalling, the Rockrider ST 540 V2 frame is made from 6061 aluminium (2.1 kg in size M). Our designers have designed and developed it so it is comfortable and easy to manoeuvre. We worked with the Sports Lab (our R&D centre) to keep the rider's back straight for a very comfortable mountain biking position. The lower bottom bracket helps keep you more stable during turns.

      100 MM FRONT SUSPENSION

      The hydraulic fork, with 100 mm travel, allows you to easily ride over more obstacles (roots, pebbles, stones, mud). Its built-in lockout system helps to prevent bobbing and loss of speed on faster terrain.

      REAR SUSPENSION: NONE

      This mountain bike has no rear suspension. This is a "semi-rigid" mountain bike. Compared to a full suspension mountain bike (with rear suspension), the advantages are clear: the mountain bike is lighter; less energy is lost on flatter ground. If however your primary concern is comfort and manoeuvrability, the ST 540 is available in a full suspension version with suspension at the rear.

      DERAILLEUR & DRIVE TRAIN: A SINGLE CHAINRING LIKE THE PROS!

      Efficient and easy: 1 chainring and 10 speeds: Accelerate on the flats and easily tackle the climbs. 1 single shifter on the handlebar: adapt your speed instantly as the terrain changes! Details: -ROCKRIDER FC ATB 500 32-tooth single chainring -MICROSHIFT ADVENTX 10-speed rear derailleur with long cage -MICROSHIFT ADVENTX right shifter -MICROSHIFT ADVENTX 10-cog cassette (11-48 teeth) -KMC X10 chain

      HANDLEBARS, STEM, GRIPS

      The adjustable stem height brings the ST 540 V2 bike's controls to your hands. The all-aluminium Rockrider stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised to 5 adjustment intervals: + 0mm, + 7.5mm, + 15mm, + 22.5mm, + 30mm. In detail: - 720mm oversize Rockrider Sport aluminium handlebar - Rockrider Sport "soft touch" ergonomic grips for good grip and a comfortable feel.

      Saddle

      Our teams designed and created an exclusive ROCKRIDER ERGOFIT saddle. Designed for all hip widths, its hammock shape is very comfortable for long, athletic rides. The Flex 27.2mm diameter aluminium seatpost also contributes to its increased level of comfort. Quick and easy tool-free adjustment of your saddle height using the adjustment lever on the seat post clamp.

      HYDRAULIC DISC BRAKES

      No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 160 mm double hydraulic disc brakes will come through for you, even in the mud. Hydraulic brakes deliver more powerful and progressive braking and require less effort applied to the brake levers. The aluminium brake levers are easy to grip and precise.

      27.5" WHEELS WITH DOUBLE-WALLED RIMS AND ALL-CONDITION TYRES

      The aluminium wheels are effective and sturdy: 27.5" diameter and double-walled rims. Their diameter is the perfect balance between comfort and performance. With their 28 spokes, they are lightweight, stiff, and durable. The wide, ROCKRIDER ALL CONDITIONS (60 TPI) 27.5" x 2.1 tyres have side knobs designed for riding on all types of terrain (dry, wet, etc.). Tubeless Ready 23 mm rims: SCHRADER valves, TUBELESS rim tape, TUBELESS tyres, and puncture-proof liquid to be added.

      Platform pedals

      The ST 540 V2 comes with Rockrider Flat platform pedals with a wider pedalling surface and more pronounced dots for better grip on the pedal.

      EASILY TRANSPORT AND STORE YOUR MOUNTAIN BIKE

      We added a quick release system for easily removing/reattaching the front wheel. Our advice: a bike rack is an easy way to transport your mountain bike without dirtying your car.

      Accessories

      Your ST 540 V2 mountain bike is supplied with a bell, lights, wheel reflectors and pedals. The frame is compatible with: -500 chainstay stand (ref. 8302792) -100 bottle cage (ref. 8049106) and 500 bottle cage (ref. 8358133) -Mountain bike mudguard set (ref. 8385291) -100 saddle bag (ref. 8347394) and 500 saddle bag (ref. 8354448) -500 pannier rack (ref. 8364376) -100 frame child seat (ref. 8486913 and 8487125), whatever the size

      COMFORT & SAFETY

      Your bike's fittings (chain, derailleur, brakes, etc.) will move around over time.

      Discover the effectiveness and playful side of the ST 540 V2 mountain bike with its 100mm hydraulic fork, hydraulic disc brakes, and the reactivity of the 10-speed single chainring.

      This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

      This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

      WHAT SIZE MOUNTAIN BIKE TO CHOOSE?

      Several sizes available: S: between 1.50m and 1.64m M: between 1.65m and 1.74m L: between 1.75m and 1.84m XL: between 1.85 m and 2.00 m If you are on the limit between 2 sizes: Choose the smaller size for easier steering (easier to handle) and comfort (straighter back). Choose the larger size for easier pedalling with a more stretched-out position (position more suited to performance).

      UNISEX FRAME

      With a heavily sloped top tube and a wide range of sizes (from S: 1.50 m to XL: 2 m), The ST 540 V2 mountain bike frame is UNISEX. The ST 540 V2 mountain bike also exists in a WOMEN'S variant V1: fitted seat, narrower handlebar, shorter stem, fork with a more flexible spring, and brake levers that are closer together. As a woman, if you choose the men's model, we recommend at least purchasing the Women's Sport 500 saddle which is fitted to the female form.

      A WORD FROM THE TEAM

      We created this ST 540 V2 mountain bike entirely at our B'Twin Village (Lille, France) for mountain biking enthusiasts. A comfortable, efficient mountain bike: more progressive, powerful hydraulic disc brakes, 100mm hydraulic fork to easily and sensitively ride over obstacles, and simple and high-performance single chainring... MTBers have been involved at every stage of this bike's development process.

      A COMFORTABLE, PLAYFUL FRAME

      For less weight and more efficient pedalling, the Rockrider ST 540 V2 frame is made from 6061 aluminium (2.1 kg in size M). Our designers have designed and developed it so it is comfortable and easy to manoeuvre. We worked with the Sports Lab (our R&D centre) to keep the rider's back straight for a very comfortable mountain biking position. The lower bottom bracket helps keep you more stable during turns.

      100 MM FRONT SUSPENSION

      The hydraulic fork, with 100 mm travel, allows you to easily ride over more obstacles (roots, pebbles, stones, mud). Its built-in lockout system helps to prevent bobbing and loss of speed on faster terrain.

      REAR SUSPENSION: NONE

      This mountain bike has no rear suspension. This is a "semi-rigid" mountain bike. Compared to a full suspension mountain bike (with rear suspension), the advantages are clear: the mountain bike is lighter; less energy is lost on flatter ground. If however your primary concern is comfort and manoeuvrability, the ST 540 is available in a full suspension version with suspension at the rear.

      DERAILLEUR & DRIVE TRAIN: A SINGLE CHAINRING LIKE THE PROS!

      Efficient and easy: 1 chainring and 10 speeds: Accelerate on the flats and easily tackle the climbs. 1 single shifter on the handlebar: adapt your speed instantly as the terrain changes! Details: -ROCKRIDER FC ATB 500 32-tooth single chainring -MICROSHIFT ADVENTX 10-speed rear derailleur with long cage -MICROSHIFT ADVENTX right shifter -MICROSHIFT ADVENTX 10-cog cassette (11-48 teeth) -KMC X10 chain

      HANDLEBARS, STEM, GRIPS

      The adjustable stem height brings the ST 540 V2 bike's controls to your hands. The all-aluminium Rockrider stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised to 5 adjustment intervals: + 0mm, + 7.5mm, + 15mm, + 22.5mm, + 30mm. In detail: - 720mm oversize Rockrider Sport aluminium handlebar - Rockrider Sport "soft touch" ergonomic grips for good grip and a comfortable feel.

      Saddle

      Our teams designed and created an exclusive ROCKRIDER ERGOFIT saddle. Designed for all hip widths, its hammock shape is very comfortable for long, athletic rides. The Flex 27.2mm diameter aluminium seatpost also contributes to its increased level of comfort. Quick and easy tool-free adjustment of your saddle height using the adjustment lever on the seat post clamp.

      HYDRAULIC DISC BRAKES

      No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 160 mm double hydraulic disc brakes will come through for you, even in the mud. Hydraulic brakes deliver more powerful and progressive braking and require less effort applied to the brake levers. The aluminium brake levers are easy to grip and precise.

      27.5" WHEELS WITH DOUBLE-WALLED RIMS AND ALL-CONDITION TYRES

      The aluminium wheels are effective and sturdy: 27.5" diameter and double-walled rims. Their diameter is the perfect balance between comfort and performance. With their 28 spokes, they are lightweight, stiff, and durable. The wide, ROCKRIDER ALL CONDITIONS (60 TPI) 27.5" x 2.1 tyres have side knobs designed for riding on all types of terrain (dry, wet, etc.). Tubeless Ready 23 mm rims: SCHRADER valves, TUBELESS rim tape, TUBELESS tyres, and puncture-proof liquid to be added.

      Platform pedals

      The ST 540 V2 comes with Rockrider Flat platform pedals with a wider pedalling surface and more pronounced dots for better grip on the pedal.

      EASILY TRANSPORT AND STORE YOUR MOUNTAIN BIKE

      We added a quick release system for easily removing/reattaching the front wheel. Our advice: a bike rack is an easy way to transport your mountain bike without dirtying your car.

      Accessories

      Your ST 540 V2 mountain bike is supplied with a bell, lights, wheel reflectors and pedals. The frame is compatible with: -500 chainstay stand (ref. 8302792) -100 bottle cage (ref. 8049106) and 500 bottle cage (ref. 8358133) -Mountain bike mudguard set (ref. 8385291) -100 saddle bag (ref. 8347394) and 500 saddle bag (ref. 8354448) -500 pannier rack (ref. 8364376) -100 frame child seat (ref. 8486913 and 8487125), whatever the size

      COMFORT & SAFETY

      Your bike's fittings (chain, derailleur, brakes, etc.) will move around over time.

      Discover the effectiveness and playful side of the ST 540 V2 mountain bike with its 100mm hydraulic fork, hydraulic disc brakes, and the reactivity of the 10-speed single chainring.

      This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

      Carte fidélité

      Please log in to view your member card.

      Carte fidélité

      Please log in to view your member card.