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Rockrider ST530, Mountain Bike, 27.5"

Sale price: $599.00 Regular price:

Raised position, stem can be raised up to 3 cm, ergonomic saddle: comfort that also yields greater efficiency. 27.5" wheels, double disc brakes, 9 speeds.

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Sale price: $599.00 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8585188

Product Features

A photo of the Rockrider ST530, Mountain Bike, 27.5" in use

Rockrider ST530, Mountain Bike, 27.5" | regular sporty mountain bike rides.

Raised position, stem can be raised up to 3 cm, ergonomic saddle: comfort that also yields greater efficiency. 27.5" wheels, double disc brakes, 9 speeds.

Cycling comfort

Raised position. Ergonomic saddle. Height-adjustable stem. Soft-touch grips.


CGF Evo aluminum frame. Single chainring 9 speed drivetrain.


Dual disc brakes. Easy handling frame geometry. Tires have good grip in turns.

Easy to use

Innovative fork with easy adjustment based on rider's weight.

Product Customer Reviews

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Rockrider ST530, Mountain Bike, 27.5
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Excellent bike

I love the ride of this bike! I’m so glad to found this bike at Decathlon!

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Only used a few times so far but a great bike

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Nice & confortable


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Bonjour Sherif,

Merci d'avoir partagé votre avis sur ce produit.

Nous vous souhaitons une agréable journée,

Bien sportivement,


An excellent bike

I brought it as a present for y husband and it’s extremely wonderful , strong , stylish and comfortable ❤️ He loved it so much

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Great bike, poor tyres

Really like this bike. Spent a long time searching for something suitable and I’m glad I decided to go with this one. All mechanics work as they should and are fit for purpose. The only downside is the tyres appear to be of very poor quality. Out of the 6 rides I have been on since my purchase, I have picked up a puncture on 3 of them! I have been on each ride with my brother on his Giant mountain bike which has somehow avoided all of the puncture traps which I must have hit. I have ridden mountain bikes off road for years but have never experienced such frequent puncturing. Would recommend the bike but definitely worth getting some different tyres for it.

Excellent for the price range

Comfortable easy ride bike. Very light. Good brakes. 9 gears are more than enough for me. Definitely will recommend.


very comfortable, the fork suspension is very good i like it, honestly all is good and im using it from house to work everyday.


Добър bike ,синът ми е на 8г и го кара ежедневно

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Мисията на Декатлон ще остане непроменена - да правим спорта достъпен за възможно най-много хора, по един отговорен към природата начин.

Благодарим Ви, че оценихте нашия продукт!

Спортни поздрави,

Декатлон България


Велосипеда е добър и напълно приемлив за съотношението качество/цена. При вземане на решението за покупката роля изигра и факта,че Декатлон разполагат със вело сервиз,който осигурява безпроблемно обслужване в гаранционен срок,а и след това.

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rockrider st 530

Велосипеда е добър за мен бързо превключва скоростите и са напълно достатъчни въпреки единия венец от пред, спирачките са плавни и спират отлично, като недостатък ми се струва, че е малко тежичък. Моля да напишете в описанието реалните му килограми, за да може да се изпълни вашата препоръка 120кг максимално натоварване на каращия заедно с велосипеда, но колко е велосипеда никой не знае.


Хидравликата не отговаря много добре

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Най-доброто обслужване


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Много леко се кара. Мнага е леко здраво добре изглежда. Удоволствие е да се кара. За сега няма някакви проблеми и се надявам да няма.

Hezké kolo, pěkně jede.

Za ty peníze pěkná koupě.

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Size Guide

Size Guide Visual

Additional Product Information


Bike frame

  • 100% Aluminum


The RockRider 530 was designed in Lille, France, by a team of experts and cycling enthusiasts dedicated to designing our MTB Sport Touring line.


Rockrider CGF Evo (Comfort Geometry Frame) 6061 aluminum frame for 27.5" wheels. Comfortable seating position thanks to raised steering. Seat is 5 times more flexible than a standard frame with its narrow 27.2 mm seat post. Low bottom bracket: helps keep the mountain bike stable in turns, and makes it easier to place foot on the ground. Open steering angle (69.5°): keeps mountain bike stable while riding. Short rear wheel base: bicycle is easy to turn. LIFETIME WARRANTY on the frame!

Front suspension

B'Twin U-Fit 80 fork, with 80 mm of travel and an innovative fork stiffness adjustment based on the rider's weight (121 to 230 lbs.). Durable thanks to the materials and fabrication processes used. Equipped with a mechanical spring and elastomer stoppers for maximum reliability and minimum maintenance.

Rear suspension

No rear suspension.


9 speed single-chainring


Hydraulic Disc brakes


B'Twin Sport Oversize aluminum handlebar; 660 mm (size S and M), and 680 mm (L and XL). Exclusive B'Twin aluminum stem, 70 mm (size S and M), and 80 mm (size L). Stem can be raised by up to 1.2", with 5 settings (+0", +0.3", +0.6", +0.9", +1.2"). Semi-integrated A-headset—better sealed and integrated style. B'Twin Sport handles with grooves, 120 mm long: genuine comfort while riding.


Aero Trail Evo aluminum wheels with double-walled rims: lightweight, stiff, and durable. 27.5" diameter: the best balance of comfort and performance. Designed with 28 spokes to reduce weight while still ensuring rigidity and strength.


Exclusive B'Twin All Terrain Dry 27.5" x 2.0 tires with a central tread specially designed for fast performance. Side lugs provide traction in turns. Also includes a chart showing recommended pressure levels depending on the rider's weight (see markings on tire sidewalls).

Saddle / seat post

Exclusive B'Twin Ergofit Evo saddle offers outstanding comfort with its wider "Hammock" cut and good distribution of pressure points regardless of the rider's pelvis width. B'Twin Sport seat post in aluminum for less weight. 27.2 mm diameter provides the seat with a natural flex that's 5 times greater than a classic seat post. 400 mm long, offering a broad adjustment range.


Bicycle comes with mountain bike platform pedals with bearings, made from hard resin for lower weight and greater safety (less aggressive in case of pedal that slips).


31.6 lbs in S without pedals. 31.8 lbs in M without pedals. 32.1 lbs in L without pedals.


Frame can take a bottle cage, saddle bag, mud guard, stand, pannier rack.

Compatible accessories

BASE KICKSTAND 500 ADULT 26-28 (Model Code 8302792) BASE AND SEAT KICKSTAND 520 CN (Model Code 8401256) SEAT POST CARRIER 500 (Model Code 8387783) BIKE RACK 500 BCLIP DISC (Model Code 8364376) ST MUDGUARD SET CN (Model Code 8550005) FLASH MTB FRONT MUDGUARD - BLACK (Model Code 8327776) BABY SEAT 100 FRAME (Model Code 8486913) IN'RIDE 100 HOME TRAINER (Model Code 8402844)



Product testing

We also recommend that beginners wear cycling shorts with a protective pad and/or a gel saddle cover to reduce soreness.

Storage instructions

Store in a cool, dry place, away from corrosive products and salty air.

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

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual