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Rockrider ST900, Mountain Bike Shorts, Men's
These ST 900 shorts are durable and thick to withstand vegetation. The stretch fabric provides freedom of movement. 2 flat secure pockets. The little extra: 2 adjustment rip-tabs at the waist.
Free shipping over $35
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 Features

Abrasion resistant
Sturdy and thick to withstand snags from vegetation.
Freedom of movement
Made from stretchy fabric, with 2 rip-tabs on the waistband to adjust the size.
Pockets
2 flat zip-up pockets for keeping your belongings secure (such as keys).
Breathability
The fabric and loose fit wick away perspiration.
Product Lifestyle Image Gallery
Image Gallery



Product Customer Reviews

Awesome! Comfortable and not baggy! But I took one size smaller. Check sizes
Cost a bit more but the quality and comfort is so much better than the cheaper ones
The clip at the top of the fly on the waist band, is very cheap and bends easily, to the point of being almost useless after only being worn twice.. A simple button structure would have been better. The bike shorts themselves are good and comfortable.
Thank you for taking the time to give us some valuable feedback Colin! I will pass this feedback on to the relevant people! In the mean time if you would like to change your pair for another product feel free to contact the store to organise a refund or exchange!
Sean
Amazing quality and fit at a great price.
Very comfortable and great price
Top shorts. Stylish and sturdy. Super comfortable.
The shorts fit well and are very comfortable. I shall be buying another pair soon.
Comfortable fit. Perfect for riding and less conspicuous at coffee stops. Front tab does flare out a bit which is a bit annoying. Similar to stock photo.
As described. Very comfortable and great wear.
I ve been using them witouth any issueas since day one, super cofortable
Awesome quality. I used it regularly on trails. I already bought 2 types of mountain bike shorts. I will definitely buy more if there’s new styles coming.
Purchased with a pair of the padded cycling shorts. Good fit and smart looking with 2 handy zipped pockets. I am normally a medium and medium was perfect even over the cycle shorts. Good price and quality . Thanks to Decathlon Cambridge.
Good for cycling
Brilliant shorts. High quality and hard wearing. Good fit. Perfect for XC and trail riding in all conditions. Good pockets.
Solid quality, just a little too short for me I think. I'm 6'3 tall, anyone shorter the length is fine.
Size Guide

Additional Product Information
Composition
Main fabric
- 15% Spandex
- 85% Polyamide
Our tip: wear undershorts for added comfort!
At Rockrider, we recommend adding undershorts with a pad under your 900 mountain bike shorts. The undershorts fit discreetly under your shorts. We must say: it is certainly more comfortable with a pad. The 500 and 900 mountain bike undershorts are compatible with the 900 mountain bike shorts.
Care tips
Machine wash at 86°F. Synthetics cycle. Turn the article inside out. Use a minimal amount of laundry detergent. Do not use fabric softener. Line dry in a warm, ventilated area. Do not tumble dry.Do not dry clean. Do not bleach. Do not place on a heater to dry.
Product tests
Our team of product designers based at the B'Twin Village in Lille, France is continuously working to make cycling more comfortable for our users. Our mission is to create products that meet the specific cycling needs of our users and to eliminate obstacles to a good cycling experience. We then test our products in the field, as we are convinced that only by subjecting them to real world conditions can we continuously improve our products.
Origin
Imported
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.
Care instructions
Machine washable. Do not tumble dry.
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 ST900, Mountain Bike Shorts, Men's
Your location: City, ST
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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.
