All images
ROCKRIDER

20" expl 900r red children's mountain bike 6-9 years

We've designed this mountain bike for children aged 6 to 9 (120 to 135 cm) who want to improve their mountain biking skills. The main advantage of this bike is its lightness! With its aluminum components, this bike weighs just 9.9 kg! Equipped with 8 gears and notched balloon tires, it's the ideal bike for progressing in mountain biking.

Minimum term
3 months CHF 24.00 / month
12 months CHF 18.00 / month
After your chosen plan, your subscription becomes flexible. Continue at the same rate and cancel anytime. Learn more
CHF 18.00 / month
Minimum commitment of 12 months
Subscription available only in store

Only CB, Visa, and Mastercard cards are accepted

Services
Your bike is covered against accidental damage and breakage due to falls or impacts, up to its sale value including VAT.
Accidental damage coverage

What is covered

In case of accidental breakage, the insurance included in your subscription covers the following cases:

Repairable damage

All parts broken accidentally as well as labor are covered.

Irreparable product

Your product will be replaced as soon as possible.

What to do in case of damage
  • It is essential to report your accident in your customer area before coming to the workshop.
  • Once the accident is reported, we advise you to make an appointment at our nearest workshop for better handling.

What is not included

Abnormal wear or vandalism

Deliberate damage, obvious vandalism, and non-compliance with conduct rules are not covered.
Our service includes maintenance and replacement of worn parts.
What is included in the maintenance and checkup
Don't repair your bike yourself, we take care of everything!

What is included

The maintenance of wear parts and your bike is covered for free in our workshop:

Tyres

Replacement of worn tyres and inner tubes.

Braking

Cables, housings, pads, discs, and levers.

Transmission

Chain, derailleur, cassette, and crankset.

Wheels & Adjustments

Wheel truing, complete safety adjustments.

Safety point checks

Functioning of the lights, braking efficiency, checking the tightness of moving parts.

What is not included

Abnormal wear or vandalism

Deliberate damage, obvious vandalism, and non-compliance with conduct rules are not covered.

Online subscription will be available very soon!
At this time it is only possible to subscribe in-store, but we are working on it and the online subscription will be soon available.

To subscribe in-store:
  1. Come to your favourite Decathlon store
  2. A teammate will check the stock availability and help you with the subscription process
  3. You will need a credit card and mobile phone to make the payment
  4. Take the product with you and enjoy the sport!
For more info take a look at our FAQ
Understanding minimum term
Choosing a minimum term is how you unlock our best pricing! The longer you commit, the more you save each month.
During your minimum term

For the duration you choose, your low monthly price is guaranteed. This is the minimum time you agree to keep your subscription.

After your minimum term

Once your initial term is complete, your plan becomes flexible. You'll continue month-to-month at the same great rate and can return your products at any time.

A key point on Pricing

Your monthly rate is based on the minimum term you choose at the start and does not change later. In case of early return, the whole commitment fee is due.

checkout.basket.warning.title

checkout.basket.warning.message

Caracteristics

Maintenance and repair
We take care of everything: from routine maintenance to minor issues.
No deposit required
No security deposit is required upfront.
Return to any Decathlon store
Simply return the product at the end of your rental period.

Technical information

Technical information

A lightweight frame for committed mountain biking:

Our engineers designed this aluminium frame to make this a lightweight bike, under 10 kg. Very sloping for better handling on challenging terrain. There are also 2 inserts on the frame so that you can attach a bottle cage for longer rides.

A rigid fork is a choice:

There is no suspension fork on this 20" EXPL 900 model. The goal is to save weight without compromising on shock absorption. To keep a suspension effect, we used a new pair of tyres with a wide cross-section of 2.2. Cushioning and traction guaranteed.

A 8-speed drive train designed for kids:

This bike is equipped with our innovative Easytrigger shifter, designed to make it easy to shift between the 8 speeds. The derailleur allows you to switch gears on the 11/34 freewheel. The 32-tooth chainset has 140 mm cranks and is equipped with a double chainguard to prevent derailment.

Controlled braking:

We have equipped the bike with front and rear mechanical disc brakes for progressive, powerful braking. The discs are 160 mm.

Breaking in disc brakes:

A bedding-in process is required. On a flat, dry road, perform 3 sets of 10 progressive brake applications at increasing speeds. 1) Ride at 15 km/h, brake down to 5 km/h, and repeat 10 times. 2) Ride at 20 km/h, brake down to 5 km/h, and repeat 10 times.3) Optional (kid's bike): Ride at 25 km/h, brake down to 5 km/h, and repeat 10 times.Between each step, release and ride for a few dozen metres in order to ventilate the disc.This bedding-in process optimises the pad/disc adhesion.

A comfortable cycling position:

The 580 mm oversize handlebars provide stability on descents, good balance when standing, and improved handling. This handlebar width also allows for better chest opening to optimise breathing.

A chainset with cranks adapted to children:

The new chainset has a 140 mm crank that is designed for a child's leg length. This chainset allows you to start pedalling more easily.

20" wheels and all-terrain tyres:

To transport the bike, we’ve made it easy to remove and attach the front wheel. It is equipped with a quick-release system. The 20" lugged tyres with a 2.2 cross-section provide traction and lots of comfort. They help compensate for the lack of a suspension fork. The recommended tyre pressure is displayed on the tyre sidewall (between 2 and 3.5 bar). The 20" inner tube is compatible with cross-sections of 1.7 to 2.2. It has a Schrader valve.

This bike can be equipped:

This MTB is equipped with a bell, lighting, wheel reflectors and platform pedals. The frame is also compatible with other B'Twin accessories: - front and rear mudguards - kickstand - bottle cage and bottle - bag - stabilisers

Dimensions of the bike ready to use:

Length: 140cm.Height: 76cm. Width: 58cm.

Frame dimensions:

Top tube length: 450 mm Seat tube length: 285 mm Chainstay length: 360 mm Seat post length: 300 mm Head angle: 69°

Ordering online:

For smoother shipping, our bikes come with their pedals removed and the handlebar unscrewed (instructions and tools are supplied)

Weight:

9.9 kg

Photos non-binding:

For the drive train parts (freewheel and derailleur), the photos or videos provided on the product description show a particular model of derailleur and freewheel. However, because of procurement issues, an equivalent derailleur and cassette from a different brand may be present on the bike.

Look after your child's bike!

Look after your child's bike so that it's always ready for a new adventure! To ensure full maintenance, we recommend that you follow these 3 steps: 01 Degrease your drive train 02 Clean your bike 03 Lubricate your chain 3 steps that 3 require 3 products that can be found in our bike cleaning kit (8751194), that will become your best friend!

How does it work?
1 Choose your product Find the product according to your needs and let the adventure begin!
2 Rent & collect in store Ready for an adventure? Select your product, pay and pick it up in store. For daily rentals you can pay in advance and pay online before you pick it up in store. If you do it in store all you need is your ID, a credit card and your smartphone with internet access.
3 Practise your sport You're all set! Now, it's time to dive into your sport with total peace of mind, just focus on the thrill of the experience and enjoy every moment.
Learn more

Similar offers

BTWIN 500 20-inch children's city bike, 6-9 years

1 model

From
CHF 14.00 / month

Kids' MTB 20" expl 500 ages 6-9 - Green

1 model

From
CHF 14.00 / month