clearance

Twelve vents to allow for lots of fresh air!

Ventilation

Enjoy unmatched comfort with the adjustment dial and straps.

Adjustable

Washable, breathable foam inserts for more support.

User comfort

Optional lights for increased visibility.

Visibility

Complies with EN 1078: field of vision, shock absorption, chin straps, etc.

Impact protection

Protection on your regular rides around town, on bike paths, and in parks.

Adjustable Helmet

Ventilation Zippers

Condition

anti-insect grid

Frequency

Weight (g)

Season

helmet compatible with

protection technology

ear pad

material of the exterior shell

type of chin guard

helmet shape

reflective

removable foams

number of aeration points

Weather Conditions

integrated lighting

Bluetooth Connection

Adjustment Dial

detection system

RECCO system

Style

Certification

Detachable Visor

Fastener Type

Main Material

Complies with bike helmet standard EN 1078, A European standard for test requirements and methods applicable to helmets for skull protection when cycling, skating, scootering, or skateboarding around town. The corresponding test requirements and methods cover the following aspects: construction, including field of vision; shock absorption properties; restraint system characteristics; and resistance to penetration.

EN 1078 Certified

If you’re between sizes, choose the larger size.
Choosing the right-sized helmet and getting the fit right is essential. Never buy a helmet for a child that is too big on the assumption that they will grow into it.
M: 53 cm–58 cm (21 x 23")
L: 56 cm–61 cm (22 x 24")

Sizes

For maximum protection, the helmet should fit snugly on 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. Several sizes are available. We recommend that you try on different sizes to find the best fit.

Adjustment

This product has a hook for attaching a Vioo Clip, an LED light that can be clipped on anywhere and unclipped in an instant.
It has a red or white light that can be used in continuous or flashing mode, making you clearly visible from a distance of up to 110 m (120 yd).
Accessories such as mounted cameras that have not been approved by the manufacturer may damage the helmet’s features and affect its performance.

Compatibility

EPS liner: Expanded polystyrene 
Outer shell: Polycarbonate

Main Materials

We recommend that you replace your helmet after five years from the manufacture date (indicated on the label inside the helmet).
We recommend discarding and replacing your helmet if it has suffered an impact, as damage may not be visible.
Using solvents or other aggressive products could affect your helmet’s effectiveness.

Lifespan

Make sure that this helmet fits you properly.

If you do need to return it, make sure it still has their instructions, labels and, if applicable, original packaging. 

Return conditions for personal protective equipment

Helmets

Security level rating: 8/10.
Additional cable 1/10.

Theft resistant

Usable shackle length: 15.9 cm (6")
Usable cable length: 150 cm (59")

Volume

U-lock weight: 0.8 kg (1.8 lb)
Cable weight: 0.36 kg (0.8 lb)

Lightweight

This high-security lock is designed for protecting your bike from theft during long stops. ART 2 certified bike lock, Sold Secure silver.

Lock type

Bike Lock Type

Width

Length (cm)

Bike Safety

Contrary to popular belief, tamper-proof locks do not exist.
Bike locks are intended to act as a deterrent, makingit more complicated to steal a bike.

A good lock has an anti-picking lock mechanism and is made out of materials requiring the use of specific tools, which makes theft more difficult.

Safety

The security rating helps you choose the lock that’s best suited to your needs.
Btwin devised test protocols based on real-life theft techniques with CNPP, an autonomous laboratory.
This unique protocol assigns each lock a theft-resistance rating from 0 to 10. It is also certified by the external organisations ART2 and Sold Secure silver.

Security rating

Hardened steel, tubular shackle for superior resistance (to bolt cutters, saws, and hammers).
Rubber coating to prevent the lock from banging against your bike and damaging the paintwork.

Longest inner shackle length: 15.9 cm (6.3")
Shortest inner crossbar size: 8.8 cm (3.5")
Accessory cable length: 150 cm (59")

Lock body

Anti-picking lock mechanism
Hundreds of different keys to limit the risk of theft.
Comes with 3 numbered keys. Keys can be duplicated in case of loss.

Lock

This kit contains a high-security U-lock plus a cable.
The U-lock allows you to secure your bike by attaching your frame to a fixed point.

The cable is great for securing accessories and components such as your wheels, saddle, bags, helmet, baby seat, etc.

How to use the kit

Locks

Capacity

Basket can be mounted on all types of pannier racks. Mounts using 4 screws.

Easy assembly/dismantling

Interface for attaching a VIOO Clip light (not included).

Our team has developed this rear basket for carrying your belongings on your pannier rack.

Volume (L)

Height (cm)

Waterproof

Position

Attachment Type

Hook Type

Place the basket the length of the pannier rack.
Several possible positions so as to not touch the saddle.

Position on the bike

Bike Baskets

onlyonline

75 dB. Aluminum dome creates a clear, powerful sound.

Audio efficiency

Only compatible with 22.2 mm (9/10") handlebars (one of the most widely used)

This bell ensures your safety when riding in a less noisy environment.

Assemble With Tools But Without Tools Provided

Assembly Type

Bike's Bells

80dB.The brass body creates a clear, powerful sound.

Only compatible with 22.2 mm handlebars (one of the most widely used)

We have designed this fantastic classic bell so you can be heard as you ride through town!

Allows you to carry up to 27 kg and can be used with a child seat.

For bikes with 26”, 27.5”, 28”, 650B, and 700C wheels with frame inserts.

Compact design

Comes with screw hardware for attachment. Adjustable length and height. 

Weight

This pannier rack is designed to carry your belongings on your bike: bags, panniers, child seat, etc.

Wheel Size

Maximum Load

You can fit your pannier rack with luggage straps.
Model 8169680 is compatible.

Accessorizing

Bike Bags & Backpacks

Wide coverage protects the back and feet.

Non-messy

Stability

Compatible with the Riverside 500, 500E, 520E, 540E, 900, and 920.

Designed for Riverside 500, 500E, 900 or 920 models only.

Skill Level

removable

Foldable

Attachment

This mudguard only fits Riverside 500, 500E, 520E, 540E, 900, and 920 bikes.

Which bikes are compatible with this mudguard?

Mudguard + stays + screws: 500 g (17 1/2 oz.)Front length: 635 mm (25").
(1 stay).
Back length: 1147 mm (45").(2 stays).

Weight and dimensions

Max. width of tires

Steel stays.
Steel screws.
Plastic blades (ABS-PC).

Materials

Bike Fenders and Mudgards

The height can be adjusted without tools.

Ease of use

Designed for parking a bike weighing maximum 25 kg (including baggage). Tool-free length adjustment. Kickstand weight: 350g.

Item Weight

The 500 chainstay stand attaches to your bike's chainstay (screws included).

Where does it mount onto your bike?

Given the variety of bikes, frame shapes, and bottom bracket heights, we recommend asking our sales assistants for help.

What kind of bike is it for?

Bike Kickstand

Security rating: 3/10. Not designed to protect your bike from theft.

Protect your low-value belongings from theft.

The security rating helps you choose the lock that’s best for your use. Btwin and third-party laboratory CNPP created a test protocol based on real-life theft techniques.

This unique protocol assigns each lock a rating from 0 to 10 that indicates how theft-resistant it is.

This lock is not strong enough to secure a bike.
However, you can attach small accessories or certain components on your bike, such as wheels, saddle etc.

Sheathed cable with 12 mm diameter and low theft resistance.
Code can be set between 0000 and 9999.

Characteristics.

Adjustable strap length. 3D adjustment dial

17 vents for ventilation during ascents. Quick-drying absorbent foam.

Size S: 280 g
Size M: 320 g
Size L: 370 g

Can be worn with a ponytail. Compatible with bike light 8487105.

Fixed side straps. Quick and easy to pull your ponytail through.

Designed for bike rides lasting over 2 hours.

Intensity

Practice Conditions

Tightening Type

Weight: Size S:280 g
Size M: 320 g
Size L: 370 g
Number of vents: 17
Specific protection technology: NS
Fastening type:clip
Occipital adjustment: 360° dial
Comfort foam: detachable and washable (available from after-sales)
Number of visor positions: Fixed
Shell material: Inmold polycarbonate
Size S: 52–55 cm
Size M: 55–59 cm
Size L: 59–62 cm
Warranty: 2 years
Certifications: EN 1078

In a nutshell:

To find your helmet size, simply measure your head circumference (around the forehead). This mountain bike helmet comes in three sizes:

S:52–55 cm
M: 55–59 cm
L: 59–62 cm

Choosing your mountain bike helmet size 

European standard setting out the requirements and test methods for helmets to be worn by users of inline skates, skateboards, scooters, and bicycles. The corresponding test requirements and methods cover the following aspects: construction (incl. field of vision), shock absorption properties, characteristics of the retention system (incl. chinstrap and tightening devices), marking and information.

EN 1078 certified

A cushioning foam replacement kit is available for this helmet on our website.

Please note that on some helmets, the colour of the EVA cushioning foam (in contact with the top of the head) may vary.

Cushioning foam

We recommend replacing your helmet in 2 cases:

1. After a fall:
In the event of a fall, your helmet's material can deteriorate or even break. Sometimes, you won’t even notice. That’s why we recommend replacing it if you have the slightest doubt.

2. After 5 years' use:
The foam deteriorates. It can deteriorate due to impact, storage location, the climate, and its use. We therefore recommend replacing your helmet at least every 5 years.

When should I replace my helmet?

3 quick steps for adjusting your helmet in 2 minutes:
1. If needed, pull your ponytail through the back of the helmet (lower the dial rim).

2. Adjust and clip both strap buckles together:make sure you can slide two fingers between the strap and your chin.

3. Adjust the tightness around your head using the rear dial.

The helmet should be in contact with your head without tipping forward, backward, or sideways, even when you’re moving.

How do you adjust the helmet?

Based at the B’twin Village in Lille, our product design team works constantly to make biking more comfortable for our users.
Our goal is to create products that respond to our users’ needs and foster a good cycling experience.


Product tests

Make sure this helmet fits you properly.

If you do need to return it, make sure it still has the instructions, labels and, if applicable, original packaging. 
Conditions: https://www.decathlon.ca/en/help/returns-exchanges

8/10 theft resistance rating.
For long stops.
8.3 mm (1/3") chain section.

Usable length: 80 cm (31").Lets you attach 1 bike.

This chain lock can secure your bike in a variety of settings.

What do we mean when we talk about security?

The security rating helps you choose the lock that’s best suited to your needs.
For this reason, Decathlon defined a test protocol with an autonomous laboratory, CNPP, based on real-life theft techniques.
This unique protocol gives each lock a comparable rating from 0 to 10 (10 being a tamper-proof lock).

Security rating.

This lock is certified by the external bodies ART2 and Sold Secure Silver.
These certifications are often required by bike insurance policies.

Other certifications.

8.3 mm (1/3") section chain links with treatment for greater cut resistance.
Usable chain length 80 cm (31").
Pick-resistant and drill-resistant high-security Abloy type lock.
Comes with 3 keys.

Allow to dry out after use. Regularly lubricate the lock with a suitable lubricant.

Product care

Security rating: 1 out of 10.
Not designed to protect your bike from theft.

Durability

Usable length: 100 cm (39.4").
Perfect for securing accessories.

Designed to protect your everyday belongings against theft. 

Contrary to popular belief, tamper-proof locks do not exist.
Bike locks are intended to act as a deterrent, making it more complicated to steal a bike.

A good lock has an anti-pick locking mechanism and is made from materials that can only be cut or broken with special tools, which makes theft more difficult.

The security rating helps you choose the lock that’s best for your use. Btwin and third-party laboratory CNPP created a test protocol based on real-life theft techniques.
This unique protocol assigns each lock a rating from 0 to 10 that indicates how theft-resistant it is.

Designed to attach a bottle cage and/or other frame accessories.

Bike Screws

Wide and convex for a better field of vision. 3D adjustment

Visual efficiency

Attaches to the bar end of a 22.2 mm diameter handlebar. 

This rear-view mirror makes it comfortable to look behind you when cycling.

Bike Stem, Posts & Clamps

Securely holds the water bottle.Compatible with bikes with bottle cage screws.

Control

Designed to securely hold a water bottle on your bike.

Bike Hydration

Easily attach your hook using 2 screws (not supplied).

Flexibility

Hang any type of bike by the front or rear wheel.

This hook is designed for you to optimise your storage space by hanging your bike on the wall or ceiling.Screws not included.

Sports/

Cycling/

Bikes/

Folding Bikes & City Bikes/

elops

Low-Frame City Bike, Classic 520