Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
Btwin, City Bike Helmet
Wearing a helmet is no longer an inconvenience!This helmet is comfortable and can be easily adapted to the shape of your head using the adjustment dial. Lighting option for more peace of mind.
Free shipping over $35
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Features

Shock protection
Complies with EN 1078: field of vision, shock absorption, chin strap system, etc
Visibility
Stand out from the crowd thanks to the optional lights.
Anatomic design
Free your head with the adjustment dial and adjustable straps.
Ventilation
Get some fresh air with the 6 vents!
User comfort
Pamper your head with the washable foam inserts.
Weather protection
The "cap" shape protects you from the rain and sun so you can stay on track
Product Lifestyle Image Gallery
Image Gallery

Product Customer Reviews

Overall decent helmet. Looks weirdly big on my head and the outer plastic is extremely thin (like you can easily push it in and out) but the inner materials seem strong.
Good protection at an excellent value.
Not if your size is 1 cm in the other upper limit by the next size up
Love the look of Decathlons cycle helmet,reminds me of retro italian motor /Cycle sports helmet.
£10 for a cycling helmet for my wife. Cheap as chips, looks good and does the elemental job of keeping her head safe.
Comfortable good fit, great in warmer weather, we'll vented.
Good, but will be investing in something more sturdy in the future.
A valuable sports store
Comfortable and beautiful
As above plus excellent service Would highly recommend
Purchased for my daughter. One of the only styles she likes, it looks quite good and seems robust so far. The fit is good. Only issue is the lack of vents, however you can tell by looking at it that it was not designed with maximum ventilation in mind. So we can't complain.
i got a size large and its an excellent fit for me its comfortable and also has great support for my head so i am insured a safe cycle. I have had many more expensive helmets which I must admit felt no more comfortable and light on my head. I wouldnt say it looks that "flash", but maybe thats a plus for some people. My daughter in particular says it does not look that cool, more like a horse riding helmet. As per all the other reviews and for Decathlon gear in general fantastic value for money and sporting excellence.
Arrived very quickly, Looks great, feels great & I don't look like a complete berk whilst wearing it (I sometimes wear a baseball cap with it too/under the helmet)
Great mid range helmet - not too garish. Good adjustments and a handy light clip on the rear. I particularly like the fact it is one of those helmets which does not make you look like a Stormtrooper.
Additional Product Information
Composition
Shell
- 100% Polycarbonate
Webbing
- 100% Polypropylene
Buckles
- 100% Polyoxymethylene
Foam
- 100% Polyurethane
En 1078-certified
Complies with bike helmet standard EN 1078. European standard defining the test requirements and methods applicable to helmets used for skull protection when cycling around town and for skating, scootering and skateboarding. The corresponding test requirements and methods cover the following aspects: construction, including field of vision; shock absorption properties; characteristics of the restraint system and resistance to penetration.
Sizes
If you're between sizes, choose the bigger size. Choosing the right-sized helmet and getting the fit right is essential. For children, never buy a helmet that is too big on the assumption that they will grow.
Adjustment
For maximum protection, the helmet should be in close contact with your head, and the fastening system must always be correctly adjusted without being too tight around your forehead. When the straps are properly adjusted, the helmet should not slide forward, back or sideways. For this reason, there are several sizes available. We recommend that you try on different sizes to find the best fit.
Weight
Size S: 8.5 oz Size M: 8.8 oz Size L: 11.4 oz
Compatibility
This product has a hook for attaching a VIOO Clip, an LED light that can be clipped on anywhere and unclipped in an instant. With a red or white light that can be used in continuous or flashing mode, you are clearly visible from up to 120 yds. away. Accessories, such as mounted cameras, that have not been approved by the manufacturer may damage the helmet's features and affect its performance.
Main materials
EPS liner: Expanded polystyrene Outer shell: Polycarbonate
Lifespan
We recommend that you replace your helmet after 5 years starting from the manufacture date (shown on the label on the inside of the helmet). As damage may not be visible, we recommend throwing away and replacing any helmet that has suffered an impact Using solvents or other aggressive products could affect your helmet's effectiveness.
Origin
Imported
Storage instructions
Do not expose to high temperatures (over 122°F), and store in a dry place away from UV light.
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
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Btwin, City Bike Helmet
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
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.
