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ROCKRIDER ST 530 Mountain Bike, Black/Yellow - 27.5"

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was £329.99 -%


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£329.99 -%
This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

* From To

* Sales from to Until end of stock
* From and limited stock
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This 27.5" MTB is designed for mountain bike rides lasting 2 to 3 hours, any time of year. With your ST 530 you can accelerate and brake very quickly to adapt to changes in the terrain! The single chainring and hydraulic disc brakes will boost your mountain bike touring rides.
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Due to high demand, we are currently suspending online delivery for bikes. We are now increasing the availability of our bikes in our store showrooms while continuing with our Click and Collect service.
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Product benefits

Cycling comfort Enjoy the raised position, adjustable stem, 100 mm suspension and hammock saddle
Ease of use Change gears effortlessly: 9-speed single chainring drivetrain.
Directional control Control your trajectory: hydraulic disc brakes, wide tyres and handlebar.
Efficiency Smooth riding: lightweight aluminium frame, single chainring, 27.5" wheels
Lifetime warranty Rockrider offers a lifetime warranty on the frame, handlebar and stem.

Technical Information


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


With a heavily sloped top tube and a wide range of sizes (from S: 1.50 m to XL: 2.00 m).
The ST 530 mountain bike frame is UNISEX.
The ST 530 mountain bike is available with the same frame in a women's version: fitted seat, narrower handlebar, shorter stem, fork with a more flexible spring, and brake levers that are closer together.
If as a WOMAN you choose the MEN'S model, we recommend at least purchasing the WOMEN'S SPORT 500 saddle which is fitted to the female form.


The ST 530 mountain bike was fully designed and developed by our passionate MTB team at the B'Twin Village in France (Lille).
A mountain bike that makes steering easier: more powerful and progressive hydraulic disc brakes, a fork with 100 mm travel for riding over obstacles, a single chainring so you can very quickly adapt to changes in terrain, etc. MTB riders were involved at every stage of this bike's creation to make sure it works just right.


For less weight and more efficient pedalling, the Rockrider ST 530 frame is made from 6061 aluminium (only 2.1 kg in size M).
Our designers created this bike to be comfortable and easy to manoeuvre. Its slope was carefully designed to keep your back straighter. The lower bottom bracket helps keep you more stable during turns.


With a 100 mm front suspension, it will be easier to ride over small obstacles (roots, pebbles, stones, mud).
Easily adjust the hardness using U-Fit technology (weight adjuster). Simply set the number to your weight using the dial on the fork.


This mountain bike has no rear suspension. This is a "semi-rigid" mountain bike.
Compared to a full suspension mountain bike (with rear suspension), it has the following advantages: the bike is lighter; you can pedal faster on flatter ground. If however your primary concern is comfort and steering, the ST 530 is available in a full suspension version with suspension at the rear.


Enjoy the ease and efficiency of a single chainring.
1 chainring and 9 speeds.
Accelerate on the flats and easily tackle the climbs.
With a single lever on the handlebar, you can change gears effortlessly!
-ROCKRIDER FC ATB 500 32-tooth single chainring
-MICROSHIFT ADVENT rear derailleur with long cage
-MICROSHIFT ADVENT right shifter
-MICROSHIFT H092 9-speed cassette (11-42 teeth)
-KMC Z9 wide, sturdy chain


The adjustable stem on the ST 530 allows you to position the levers so they're easy to grip. The all-aluminium ROCKRIDER stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised in 5 adjustment intervals: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.
In detail:
- 720 mm oversize ROCKRIDER SPORT aluminium handlebar
- ROCKRIDER SPORT "soft touch" ergonomic grips for good grip and a comfortable feel


The ST 530 saddle is welded to prevent any saddle movement as you cycle.
Because your comfort is our top priority after your safety, we've added an exclusive Rockrider Ergofit Evo saddle that is wider and hammock shaped.
Easily adjust the height of your saddle with the 400 mm Flex steel seat post. Its reduced diameter (27.2 mm) provides your seat with natural flexibility, 30% more than a standard solution.


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 light, easy to grip, and precise.


The aluminium wheels are effective and sturdy: 27.5" diameter and double-walled rims. Their diameter is the perfect balance of comfort and performance. With 28 spokes, they are lightweight, stiff, and durable.
The wide, exclusive ROCKRIDER ALL CONDITIONS (30 TPI) 27.5" x 2.0 tyres have side knobs designed for riding on all types of terrain (dry, wet, etc.).
Tubeless Ready 23 mm rims: you will need rim tape, Schrader valves, and puncture sealant.


The ST 530 comes with Rockrider Flat platform pedals with a wider surface and more pronounced dots to better keep your foot on pedal.


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


Your ST 530 mountain bike is supplied with a bell, lights, wheel reflectors and pedals.
The frame is compatible with:
- Front and rear mudguards
- Stand
- Bottle cage
- Saddle bag
- Rear pannier rack
- Child seat


Your bike's fittings (chain, derailleur, brakes, etc.) will adjust over time. Take advantage of a free servicing within 6 months after purchase. Our technicians will carry out a 13-point check of your bike. Just come to your nearest Decathlon workshop with your Decathlon card and/or receipt.


To ensure your bike's components last longer, we recommend a maximum load of 120 kg (rider plus fully equipped MTB).


S - 150-164cm: 13.7 kg
M - 165-174cm: 13.8 kg
L - 175-184cm: 13.9 kg
XL - 185-200cm: 14 kg
Weight without pedals.

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Composition / advice

100.00% Aluminium
Stock advice After washing, rub with a dry cloth to remove all traces of moisture. Store your mountain bike in a cool, dry place, away from corrosive products and salty air.
Restricted use : Not suitable for XC, All Mountain, Enduro or BMX.
Legal notice To ensure your bike's components last longer, we recommend a maximum load of 120 kg (rider plus fully equipped MTB).

Our commitments

Test Product Our engineers always have real riders test all our products in real conditions. These tests round out our lab tests and let us validate all our products before they hit store shelves.
Guarantee : Lifetime (frame, stem, handlebar). Availability of spare parts: 2 years.


Q : How to assemble your bike?
Everything you need to know about making sure your bike is comfortable, secure and ready to ride.
Q : How do you adjust your brakes?
Having properly functioning brakes is vital when out on the road. Check out how to get them working to your liking.
Q : How to replace a brake lever on a bike?
Having properly functioning brakes is vital when out on the road. Here’s a video to show you how to make sure your new brake level is working nicely.
Q : How to replace a disc brake?
Having issues with your disc brake? Then this video is for you.
Q : How to adjust your bike handlebar?
A suitable handlebar height is essential to your cycling safety and comfort. Find out how to adjust it to your liking with our video.
Q : Do you offer a Cycle To Work scheme?
Find out everything you need to know about way of getting to work that’s good you and the environment.Check Here

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Maintenance and repair
Maintenance and repair
27.5" MTB ST 530 UK Black
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