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Rockrider ST540, 27.5" Mountain Bike

Sale price: $699.00 Regular price:
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Sale price: $699.00 Regular price:

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Model: 8550613

Product Features

A photo of the Rockrider ST540, 27.5" Mountain Bike in use

Rockrider ST540, 27.5" Mountain Bike is designed for

Mid-level Sport Trail mountain bike hardtail

Cycling comfort

100 mm hydraulic fork (smoother). Ergonomic saddle. Height-adjustable stem.


Shimano 2×9 speeds. Lightweight, fast tires. Fork with lockout.

Easy to use

2×9 speeds, hydraulic disc brakes, suspension fork

Product Customer Reviews

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7 Reviews
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Rockrider ST540, 27.5
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Product Reliability

the product is good as

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Bad assembly

bike comes with assembly but not!.. be aware this...I'm so disappointed looks good bike but cost me to fix wheels out of true , bad shifter , loose brakes over 100 bucks..and front wheel still out of true..

Great Mountain Bike

Great quality for the price. I am very happy with this bike.

Excellent for a beginner

I was looking for a bike quite urgently and ended up buying a mountain bike rather than a road one just because this is what was available. I am in my 40's and had not been using a bike for about 20 years and I must say I am rediscovering the pleasure of biking. So no regrets at all, I am delighted with this bike.

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Hi Guillaume,

Thanks for the feedback and its great to hear that you have rediscovered your interest for cycling.

Stay safe and check out the local mountain bike trails!


ปั่นสนุก รถสวย

ปั่นสนุก ใช้ได้ทั้งออกกำลังกาย และปั่นไปทำงานได้ดี

excellent value for money

very good components for the price; solid build;

icon-circle-checkmark verified purchase

Hi Reto,

Thank you for your feedback on ROCKRIDER SPORT TRAIL 540 27.5" MOUNTAIN BIKE RED. It is our responsibility to ensure that our products are made to satisfy our users.

At Decathlon, our mission is to make sports accessible for the many. We ensure that quality is not compromised despite the affordable price, thus making it as you mentioned, value for money!

Your feedback helps us create a better experience for you and all of our users. Please feel free to leave more reviews on other Decathlon products. We hope to see you in stores soon!

Stay Safe and Stay Healthy (:



Sports Advisor Gymnastics

Joo Koon

For Bike trekking

เหมาะสำหรับการปั่นแบบเทร็คกิ้ง ล้อที่ได้มาเกาะพื้นถนนได้ดี เคยนำไปปั่นที่แม่สะเรียง ขึ้นเนินขึ้นเขาลุยทางดินได้สบาย เหมาะสำหรับคนชอบลุยเส้นทางภาคเหนือ

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Size Guide

Size Guide Visual

Additional Product Information



  • 100% Aluminum


Entirely designed and developed in France at the B'Twin Village (Lille), this mountain bike is the fruit of the work of an expert team of passionate mountain bikers. Production is done in Suzhou, China by our own factories in order to be as close to the regional Decathlon stores as possible.

User guide & bike assembly

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Warning - california prop 65

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Lifetime on frame and fork, 2 years on parts.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual