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Rockrider ST900 6 L Mountain Biking Hydration Backpack
Go for rides of 4 hours and more with this hydration pack: 2 liters of water. The 6 liter capacity is well-distributed for bringing what you need. Enjoy the mesh at the back and various adjustments.
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San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Capacity: 6 L bag with a 2 L bladder for hydration
- Multiple compartments: Many compartments for tool and item storage
- Stability: Adjustable straps
- Carrying comfort: Mesh straps and foam padding for excellent comfort
- Use: For hiking, camping, and other outdoor activities
Product Videos
Product Features

Capacity
A usable volume of 6 L and a 2 L water bladder: drinking for up to 4 hours.
Multiple compartments
1 large compartment, 1 tool pocket, 2 side pockets, 1 helmet gusset, etc.
Stability
Adjusts with the shoulder straps, the waist strap, and the chest strap.
Carrying comfort
There are 3D mesh pads at the back and hips for ventilation.
Watertight
A protective rain cover is built into the bag.
Visibility
VIOO CLIP light attachment point on the back
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Product Customer Reviews

Excellent product
Very well designed bag.
Perfect for mountain biking or hiking
It is the only backpack on the market that practically stores the bike helmet, in addition to having rain protection with the integrated raincoat, the side pockets on the side are very practical, everything is good with this backpack
Top bag, bravo To buy
Excellent product, well suited to cycling
Necessary for mountain biking or hiking
Meets my expectations
Middle compartment not too secure.
Satisfaction for me. I more or less ordered what I was looking for. Looks nice and "fits" comfortably on the back.
TOP
Walked 100km death march from Bornem, with this backpack. Sat great. No problems with the weight super
Used in mtb dh, very good
GOOD
Alright
Additional Product Information
Composition
Lining: 100.0% Polyester ; Main fabric: 50.0% Polyester, 50.0% Polyamide
How do i maintain my water bladder?
We recommend that you rinse out and dry the water bladder after each ride. To make it easier, use the cleaning kit with the bottle brush and a drying hanger (code: 5935596). It is important to clean the water bladder and tube.
Bring with you ...
This hydration pack comes with a 2 L water bladder. But also remember to bring:- your food (granola bars, energy gels, etc.)- your multifunction adjustment tool (ref: 8386669)- a puncture repair kit (inner tube, tire lever, hand pump, puncture repair spray, CO² cartridge, etc.)- your chain rivet extractor and a quick link - a piece of identification, blood type card- a means of payment and a telephone- a 1st aid kit- etc...
A spare bottle
In very hot weather, it is recommended that you drink 1 L per hour. So remember to bring a water bottle as well.
Storage instructions
Once clean and dry, keep your backpack and water bladder in a dry place and away from direct sources of heat. Clean by hand in soapy water.
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 ST900 6 L Mountain Biking Hydration Backpack
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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.