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Btwin 500, Hybrid Bike, 16'', Kids' 3'7" to 4'0"

Sale price: $169.00 Regular price: $229.00

16" bike with a mudguard, stand, knobby tires, reflector, and bell. The brakes are suited to children's hands and the full chain guard ensures a safe ride.

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Sale price: $169.00 Regular price: $229.00

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San Francisco, 735 Market St. Options

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Model: 8557080

Product Features

A photo of the Btwin 500, Hybrid Bike, 16'', Kids' 3'7" to 4'0" in use

Btwin 500, Hybrid Bike, 16'', Kids' 3'7" to 4'0" | 4-6-year-old children who are beginning to learn to ride a bike.

16" bike with a mudguard, stand, knobby tires, reflector, and bell. The brakes are suited to children's hands and the full chain guard ensures a safe ride.

Easy to learn

Lowered frame for easy mounting and dismounting.

Brake control

'Easy Stop' V brake on the front and rear coaster brake

Bike safety

Built-in chain guard to keep children away from the drivetrain

Easy to use

Stabilizers and training bar (both sold separately) can be fixed without tools


Steel frame. Aluminum rims.

Product Lifestyle Image Gallery

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Btwin 500, Hybrid Bike, 16'', Kids' 3'7 

Btwin 500, Hybrid Bike, 16'', Kids' 3'7 

Btwin 500, Hybrid Bike, 16'', Kids' 3'7 

Btwin 500, Hybrid Bike, 16'', Kids' 3'7

Product Customer Reviews

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Btwin 500, Hybrid Bike, 16'', Kids' 3'7
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I like the 500 Robot kids bike 16" very strong and easy to ride

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Very good 1st bike

Got it for my 4 year old. His 1st bike.. he loves it. The guys at the shop were very good to assemble with rt height. Only drawback, some time the wheel get stuck in sand so need to push it.. think some issues with tyre grip, second there were no colour matching side wheels .. so very minor issues.. would give it 4.5

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Unsafe brakes

I bought this bike for my 5 year olds birthday last September. Later that day the front brake came out of the holder. I returned it to the store where I was told that the handlebars had got twisted around and made the brake come out of the holder. The mechanic fixed and tightened it and I took the bike home. The brakes have continued to come out of the holders despite me tightening them several times. I have even tried tying the cables together but the brake has still come out. Why can the handlebars turn all around if it causes the brakes to come out of the holders making the brakes not work? This seems like a safety issue. I cannot even find if I am still eligible for a refund.

Excellent bike, very pleased

After a disappointing experience with Argos bikes, me my son and my mum went to decathlon store in Manchester to have a look at bikes for my 6 year old son for his birthday. My son fell in love with 500 robot kids bike. We've bought the bike fully assembled, it was tested and I had one very happy little boy. He's never off that bike and now wants to take it to school. Well worth the buy. Decathlon are excellent, great customer services and good quality for money.


Bought this bike three weeks ago for my 6yr old's birthday - from day one we've had problems with the brakes, the front brake cable keeps coming out of the 'holder' and now they are not working at all. I believe other customer have had similar issues too.

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Btwin kids bike

Brought this bike for my 5 year old and the day after the cable for the breaks became loose and kept detaching, leaving it unable to work! Despite tightening it continued to detach. Very disappointed.

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I'm sorry to read that there is an issue with your brake cable. It clearly doesn't sound right at all.
Please return it to your local store who will examine the brakes and either rectify the fault or provide you with a new bike.
Peter, Cycling Manager, DECATHLON
Kids bike

Excellent bike, very sturdy and efficient service.

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Value for money

We buy it a week ago. Our boy is so happy. Its has strong and good quality material. Beautiful design as well. Best thing is that its come out with bells and front and back lights and you don't have to pay extra. If its your child first bike, must buy Training Wheels , its not expensive and very easy to remove or put them back. Most important always check your child height not age for correct size, it will make huge difference if you buy 18-inch instead of 16-inch.

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Good bike and service

Good bike and service

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Great stuff

Nice bick

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My son loves it

My son wanted a bike and I wanted quality & price. This bike provides me what I wanted and my son is over the moon.

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Good sturdy bike

Great bike and easy to assemble

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Brilliant product excellent service

Brilliant product excellent service

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Really good quality and sturdy bike for kids

Really good quality and sturdy bike for kids

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Kids bike

Excellent bike. My little boy loves it. Excellent advice from staff members.

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Additional Product Information


Bike frame

  • 100% Steel


Exclusive new B'Twin steel frame: lower in the middle to make it easy to get on and off. Children won't get stuck on their bike when playing as it's easy to climb on / off.


B'Twin handlebar and grips. Comfortable foam saddle. The riding position has been designed specifically for children and the grips are suited to small hands. The height can also be adjusted as children grow.


Coaster Brake and left-hand brake The innovative Stop Easy front brakes, specially designed for children's small hands, require 30% less braking effort than traditional levers. V-brake at the front and coaster brake at the rear for effective braking.


Freewheel: safer as children do not need to pedal, even going downhill.

Wheels / tires

Aluminum rims. Real tires with inner tubes (inflatable) to help get past obstacles (curbs, etc.).Knobby tires for great versatility.

Chain guard

Specially-designed B'Twin housing with decorations on the plastic. We created this chain guard to fully cover the mechanical drivetrain parts (crank, chain, freewheel, etc.) in order to reduce the risk of pinching (of small fingers) or catching (of laces), and to keep clothes clean.

Accessories / equipment

Front and rear mudguards, finger-safe bike stand, and bell. The mudguard protects children from tire spray. A set of B'Twin 16" stabilizers (training wheels, sold separately) and a B'Twin tow bar (sold separately) can be mounted in seconds without tools to help your child gradually learn to ride on 2 wheels. Equipped with fenders


20.3 lbs




Lifetime (frame, stem, handlebars). Details on Availability of spare parts: 2 years

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
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs