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Men's MTB Biking Shorts EXPL 500 - Black
With their built-in foam pad (designed for men), these durable shorts absorb vibrations and prevent rubbing and chafingAdvantages: glove attachment, 2 secure pockets and 2 cereal pockets.
Free shipping over $35
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Resistant to wild vegetation
The ”warp and weft” fabric withstands rubbing and snags.
Seat comfort
Ergonomic, pre-shaped, foam pad (13 mm)
Freedom of movement
Special ”relaxed” cut and elasticated fabric for riding comfortably.
Stability
Elasticated waistband with press stud
Moisture wicking
With undershorts that effectively wick away perspiration.
Pockets
Take everything you need in the 4 handy pockets.
Weight
280 g in size L.
Product Lifestyle Image Gallery
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Product Customer Reviews

The padded briefs can be separated and are really padded well. The shorts are sized well but the padded briefs are tight. I find everything at Decathlon are sized 1-2 sizes smaller than any other store in Canada. Quality is top notch. Store needs to maintain the racks better as everything is mixed up with makes it hard to find the right size
Hello John,
Thank you for taking the time to leave a review. If you are not satisfied with any product, you can always return or exchange it at the store. We have a 365 return policy for all the in-store purchases for members & we do a no questions asked return/exchange.
Also, do not hesitate to ask our advisors for help if you have any doubt about the product you need. We are more than happy to help and assist our customers.
I also want to thank you for reporting the situation. First and foremost, I would like to apologize for the inconvenience. We are working every day to provide you with quality service and I see that this was not the case for you. We have raised this concern with our team & we will be adding in some extra steps to ensure that such a situation is never repeated again. We will work towards your feedback & we promise to serve you better in future.
Thanks & Best Regards,
Decathlon Brampton Team
Once getting the shorts home, I've noticed that the button and button hole seem a little flimsy. I hope they don't fail.
I bought the size that was the best compromise between the fit of the inner and out shorts. The inner are tight on my thighs and are difficult to pulll up, the outer shorts on the next size up were too loose. Decent enough quality. Pockets - has anyone who designed these ever put them on, the one pocket big enough for a phone is on the outer thigh and the zip isn't very fluid, what would have been wrong with a top zip, on a pocket higher up and a couple of front pockets for keys etc, i dont think a few more pockets, designed with more consideration would have burst the bank?
It’s a good product go and buy it
I got a size S, with the inner tights at 25", while the outer shorts is 31" with elastic band. the difference is simply too big.
Hi Robin,
Thanks for your feedback about the ST 500 shorts! I'm sorry that it did not provide a satisfactory experience with regards to the fit difference between the outer and inner shorts.
If you believe it to be a product defect or simply remain dissatisfied with its performance, you may return or exchange it at any of our Experience Stores.
Please rest assured that our product designers who are mountain bikers too are constantly monitoring customer reviews in order to continuously improve our products. Thanks and have a great day!
Jason
Digital Sport Leader
Cycling & Roller Sports
Really good quality but the inner is narrow on the legs. Also, the outer has weird small pockets in the leg side. Not big enough for a phone. Well padded
Doporučuji, skvělý materiál, jen pozor na velikost, doporučuji koupit spíše větší.
Velmi pohodlné
Příjemné, funkční, odolné.
Chybí poutka na pásek
Trotz Online Grössenberater speziell für diesen Artikel ist mir die Innenhose am Bund und an den Oberschenkeln viel zu eng. Sitz und Passform der Aussenhose kann ich nicht beurteilen, da ich die beiden Teile nicht wie vorgesehen mit der Schere voneinander getrennt habe.
Die Größenangabe stimmte nicht mit den sonst von mir getragenen überein
Hallo Thomas,
vielen Dank für deine Produktbewertung der Radhose kurz MTB ST 500 Herren schwarz von ROCKRIDER.
Wir bedauern, dass du Defizite bei der Größenwahl feststellen musstest. Wir arbeiten mit einem internationalen Team kontinuierlich an optimalen Größenangaben. Dein Feedback werden wir an den zuständigen Projektmanager der Marke ROCKRIDER weiterleiten, um die Auswahl weiter zu verbessern.
Solltest du weitere Fragen haben, steht dir unser Serviceteam (service[at]decathlon.de) jederzeit zur Verfügung.
Wir hoffen, dich in Zukunft wieder von unseren Produkten überzeugen zu können und wünschen dir einen guten Start in die neue Woche.
Mit sportlichen Grüßen
Frederic
Team DECATHLON
Leider ist die Innenhose sehr eng, während die Überhose so grß ausfällt, dass der elastische Hüftsaum kaum zum tragen kommt. Die Überhose würde so beim hinter-den-Sattel-gehen und wieder hervor kommen hängen bleiben.
✅ sehr gute Qualität ✅ gute Passform ✅ Hose ist recht eng geschnitten daher eine Nummer größer kaufen ✅ guter Preis
Additional Product Information
Composition
Main fabric: inner layer ; Yoke: 86.0% Polyester, 14.0% Elastane ; Back fabric: 63.0% Polyurethane, 6.29% Elastane, 30.71% Polyamide
Sizing information
Our model is wearing a size M top and size M bottoms.He is 1.83 meters tall.
A second skin with comfort to boot.
The pad has been designed for more regular users looking to progress in MTB. The support foam is also soft but more dense. It protects pressure zones for up to 3 hours. The foam is soft and the stretchy outer layer hugs the cyclist's body so the pad can follow their movements. Foam thickness: 13 mmFoam density: 100 KG/m3Foam firmness: 25 KPa
Pockets
- At the back there's a zip-up pocket for things like keys, credit cards, etc. (14 cm x 7 cm)- There's a zip-up water-repellent pocket on the back of the thigh that's easy to access (even with one hand) and positioned to protect your phone from falls (20 cm x 12 cm).- There are two pockets along your thigh for storing cereal bars (15 cm x 4 cm each).
Keep your gloves to hand
When mountain biking, gloves are often the last thing you put on and the first thing you take off. These shorts have a buckle on the waist so you can keep hold of your gloves without having to rummage around in your pockets. You can snap your ST 100 and ST 500 gloves on them using the press stud to keep them handy at all times.
Care instructions
You can find detailed info on looking after your mountain bike clothing on our website
Product tests
Our team of product designers based at the B'Twin Village in Lille is continuously working to make cycling more comfortable for our users.Our obsession is to create products that meet the specific cycling needs of our users and eliminate hindrances to a good cycling experience.
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
Store in a clean and dry place.
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

Men's MTB Biking Shorts EXPL 500 - Black
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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.