Product Colors and Sizes
Kids' RR ST900 20" Mountain Bike
Free returns
Free shipping over $30
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Features
Easy to use
6 speeds, quick-release saddle, quick-release front wheel
Bike safety
Double disc brakes provide powerful and easy braking.
Shock absorption
Suspension fork.
Lifetime warranty
B’Twin offers a lifetime warranty on the steel frame, stem, and handlebar.
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Size Guide
Additional Product Information
Composition
Bike frame
- 100% Aluminium 6061
Frame
Aluminum frame designed by B'Twin. The lowered frame geometry makes it easier to get on and off the bike.
Drivetrain
6 speeds. Ultra-soft grip shifter for children: change gears using a grip shifter, which is easier and safer (the child doesn't have to let go of the handlebar to change gears). B'Twin chose this shifter as it is extra soft and specially sized for children's hands.
Handlebar / stem / steering
Mid-rise stem and handlebar. Quick-release saddle. Comfortable, reinforced (plastic shell) saddle that provides a comfortable position. Fast, tool-free saddle adjustment. B'Twin selected this reinforced saddle for its tried-and-tested durability (should the bike fall over, for instance).
Brakes
Very reliable double disc Brakes. B'Twin chose to equip this bike with a double disc Brake system for its ease of use, easy maintenance, and greater braking power.
Origin
Imported
Guarantee
Lifetime warranty (frame, stem, handlebars). Details on btwin.com. Spare part availability : 2 years
Satisfaction Guaranteed
Free Shipping Over $30
Exceptions Apply
Free In-Store Pickup
Free One Year Returns
Exceptions Apply
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Kids' RR ST900 20" Mountain Bike
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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.