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Rockrider ST530S Full Suspension Mountain Bike 27.5"
Enjoy the comfort of the 120 mm front and rear suspension on the ST 530 S. The single chainring and the hydraulic disc brakes are your best allies for adapting to changing terrain as you ride.
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Final Sale: No returns or exchanges
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Cycling comfort
Enjoy the raised position, adjustable stem, 120 mm suspension, & hammock saddle
Easy to use
Adjust your speed without thinking: 9-speed single-chainring drivetrain.
Directional control
Control your trajectory: hydraulic fork and brakes, tires, and a wide handlebar.
Efficiency
Smooth riding: lightweight aluminum frame, single chainring, and 27.5” wheels.
Lifetime warranty
ROCKRIDER offers a lifetime warranty on the frame, handlebars, and stem.
Product Lifestyle Image Gallery
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Questions & Answers
Look for product information, frequently asked questions, opinions...
Question:
Hey, I have one of these bikes and I wanted to upgrade the suspension and I’m wondering if this will fit a tapered head tube?
Answer:
No, a tapered fork tube will not fit the frame. Customer needs to look for 1" 1/8 straight fork tube.
Question:
hello, what width is the seat post on this bike? I want to install a dropper seat post.
Answer:
The Seatpost is 31.4mm wide and 400mm long.
Question:
is it posible to replace the headset cups and if it is what size should i look for
Answer:
Yes it is possible to replace the cups, but the entire headset should be replaced at the same time as the bearings are specific to the cups, as is the crown race which is attached to the fork. The cups should be 1 1/8cups
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Product Customer Reviews

It's been 4 weeks since I bought the bike. The gears, brakes and suspension of the bike are very good, but the tires slide like butter in rainy weather, other than that, the bike is very good.
A bicycle with good performance and a more than economical price for what it offers, the truth is, these days I have tried it and it has been spectacular. The only drawback I found was that from the factory it came with a squeak in the front wheel, but I took it to my nearest Decathlon and they fixed it in no time, plus the super friendly staff. For now I am very happy with both the service and the product, thank you very much.
After 1 month, shifting is very difficult, despite good maintenance
If you have a very good budget, I highly recommend it.
I'm going to change bikes after 3 weeks! The bike 150 km used in the Basque forests, cracking of the crankset, doubtful transmission and already checked. Felt vibrations at the slightest stone, tire grip non-existent in turns, even uphill. Cassette too small to overcome slightly steep climbs. Braking is correct taking into account my 87 kilos. This bike is clearly not made for what DECATHLON announces in the description.
great bike
I don't know what you have with the front fork, but I didn't do anything to it and we are going very well, the rear sock is stuck, I can't turn it anymore (a friend of mine also has this problem) you should change the tires that all conditions are not good and everything else is fine
Good bike
Very good product and very smooth to ride thank you decathlon
I had to make a repair and they did it perfectly, good treatment and excellent service.
I bought this bike for my son to ride to school. After cycling barely 100km, we decided to get an electric bike and return it. It was still in almost perfect condition, but I only got €300 back from Decathlon, which is less than half of what I paid for it 2 months earlier. Rip off.
A great bike
I arrived in service in two months. The plastic pedals do not cope with the effort and I had to change them. I changed something in the gear box. So much so that service rokrider decided to change the part for free. I appreciate 😊 rokrider service for understanding and professionalism. You have a "Yes" from me. Congratulations!
I recently purchased this Rockrider 530s mtb for a few rides also on white slopes but I must say that in addition to being very aesthetically beautiful it also offers good ride comfort... beyond my expectations... I am fully satisfied with the purchase
👍
Size Guide

Additional Product Information
Composition
Frame (for bike): 100.0% Aluminium
Which is the right size?
Several sizes available: S: between 4'11” and 5'5”M: between 5'5” and 5'9”L: between 5'9” and 6'XL: between 6'1” and 6'7”If you are at 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 pedaling with a more stretched-out position (position more suited to performance).
Unisex frame
The ST 530 S MTB has a UNISEX frame.The ST 530's frame has been carefully designed down to the smallest detail, from the top tube's relatively pronounced slope, to the wide range of sizes (M: 5'5” to XL: 6'7”). The ST 530 S is not only lightweight and comfortable, but UNISEX as well.To make the most of the improved comfort, the women on the RockRider team recommend the 500 Women's Sports saddle, which is specially designed for the female form.
A word from the team
The ST 530 S 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, shocks, and a fork with 120 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.
A light, comfortable frame
For less weight and more efficient pedaling, the RockRider ST 530 S frame is made from 6061 aluminum (only 6 lbs in size M without suspension). Its 120 mm rear shock uses a single-pivot system (more sensitive to small impacts, while remaining firm when encountering large impacts) and sealed bearings for a great lifespan.
120 mm front suspension
The hydraulic fork, with 120 mm travel, allows you to easily ride over more obstacles (roots, pebbles, stones, mud).The fork's built-in lockout system helps to prevent bobbing and loss of speed on faster terrain.
Rear suspension
This mountain bike has a RockRider U-Fit 120 mm spring shock absorber, specially adjusted for this frame. You can easily adjust it based on your weight, which provides you with a very good balance between sensitivity and performance.
Derailleur and drivetrain: a single chainring like the pros!
The single chainring is easy and efficient to use: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 while hardly thinking! -ROCKRIDER FC ATB 500 single chainring (32T)-MICROSHIFT ADVENT rear derailleur with medium cage -MICROSHIFT ADVENT right shifter-MICROSHIFT H092 9-cog cassette (11-42 T)-KMC Z9 wide, sturdy chain
Handlebars, stem, grips
The adjustable stem brings the ST 530 S controls to your hands. The all-aluminum 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: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.In detail:- 720 mm oversize ROCKRIDER SPORT aluminum handlebar- ROCKRIDER ergonomic grips for good grip and a comfortable feel.
Saddle
The ST 530 S saddle is welded to prevent any saddle movement as you cycle.Because your comfort is our next priority after 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 long, 31.4 mm diameter seat post.
Product testing
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.
Storage instructions
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.
Guarantee
Lifetime (frame, stem, handlebar). Availability of spare parts: 2 years.
Origin
Imported
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
-
Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Rockrider ST530S Full Suspension Mountain Bike 27.5"
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
