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Need help assembling, maintaining, or repairing your bike?

Use our guides and videos to help out.

You'll also find instructions and accessories compatible with the Riverside 120.

You and your bike can set off on rides without a care in the world!  

Assembly video

assembly video

First use

Get started with your first bike tour


Read on for our tips:


Wear a certified helmet, purchased recently — the head is impacted in one out of every two falls!!

IMPORTANT: Helmets have a limited effective lifespan, even if they haven't been involved in a crash! Find out more when making your purchase.

- Set off with a bike that is properly adjusted and well maintained

- Take along a mobile phone (charged!) to be able to make a call should you need help.

- Map out your itinerary ahead of time so you can as much as possible take bike trails and paths free of cars.

- Take a first aid kit (in a bag under the saddle, for example)

- If you will be riding in the dark, make sure you have front and back lights with you


- If you're just starting to cycle, gradually lengthen your rides, starting out at one hour

- Wear clothing that is appropriate for the length of your ride, plus gloves.

- Don't try to push hard on the pedals. Instead, switch gears so you can pedal more efficiently and faster. You'll be able to go further for longer

- Depending on the weather, bring along clothing to protect you from the cold or rain

- Don't forget to stretch after your ride



- A tyre pump. Some pumps will fit onto the frame's screws for the water bottle holder

- 3 tyre levers, one inner tube and a Riverside 100 15 mm spanner: which you can fit into a saddle bag.

Learn to make repairs yourself!! Watch the following video.


- Make sure your bike has a bottle cage so you can drink while riding, or take a bottle of water in a backpack.

- Remember to drink water regularly (every 20 minutes and at least half a litre per hour)!


-Take energy bars (you can carry them in a frame or handlebar bag)

- Don't wait until you're hungry to eat. Eat something every hour to give your muscles more energy.

Taking off your front wheel (so you can fit your bike in your car, for example)
Storing your riverside

Storing your Riverside (for long periods)

Store your bike in a dry, sheltered place

Before you put it away, clean your bike to remove mud or sand that could corrode your bike.

Lubricate the chain. Spray "All In One" over the entire bike to protect it from corrosion

Shift the derailleur to the smallest cog

The right tyre pressure

Why? Because it makes the ride more comfortable and easier, and less likely to puncture.

Here's the recommended tyre pressure based on the bike load (the rider's weight + luggage):

45 to 65kg: 3 bars

65 and 80kg: 4 bars

80 and 100kg: 5 bars

The brakes are working properly
How to properly adjust your seat height

Why?Sitting at the right height eliminates pain from pedalling in an uncomfortable position.

Equipping for a ride

You need the right equipment to make the most of your ride. Comfort and safety are ensured thanks to our range of accessories and clothing specially designed for the sport.


Our clothing

Helmets and glasses



Servicing your Riverside 120 will keep all of its parts working for as long as possible and ensure you have the most fun when riding. Aside from the aesthetic aspect of having a clean bike, failing to service it can lead to problems, and problems lead to accidents: jammed cables, rust, leaks, premature wear

Your bike's parts will also last longer, which means a lower environmental impact.

As soon as you start using the bike, some components will move slightly.
This is why we offer a free check for your bike 6 months after purchase. 

Spring cleaning

You should take time to fully clean your bike. Read on for guidance on how to deep clean your bike, step by step. We recommend this cleaning method if you use your bike often.

You'll cover a lot of distance with your bike over its lifetime, and you'll eventually need to replace parts for safety and to keep it working properly.

Every 100km: Clean the chain and lubricate the drivetrain

Every 2000km: Change the brake pads by visiting the nearest Decathlon workshop or following our guide to replace them yourself.
Get your tyres replaced or do it yourself by following our guide.

Every 5000km: Get your chain and rear wheel cogs changed (visit the nearest Decathlon workshop).

Degreasing your drivetrain 

Degreasing your bike chain
In order to properly degrease your chain, it's important to spray a degreasing product on the entire chain and drivetrain. Then, wipe the chain and the cassette with a clean cloth to remove grease and dirt. Depending on the general condition of your chain, be sure to clean any particularly dirty parts thoroughly!
Lastly, rinse it abundantly until you've gotten all the residue off. Sometimes even after spraying with cleaning product, some dirt might still remain,
Finish by letting it sit for a few minutes before wiping your chain down again with a dry cloth in order to fully remove any remaining residue.

To perform this task more efficiently and for a cleaner chain, we recommend using our chain cleaner.

Lubricating your chain

We're going to show you a tried and tested method that's been approved by the mechanics on the VAN RYSEL | AG2R LA MONDIALE U19 team, our ambassadors.

Changing the brake pads
How to check tyre wear

A worn bike tyre can have consequences: from loss of grip to falling, as well as punctures. To reduce these risks, we've prepared some advice to help you check the wear on your bike tyres.

Changing your tyres
Changing your cassette 

Simply unscrew the cassette using the cassette removal tool and chain whip, then screw on the new cassette.

You'll find the cassette removal tool and chain whip at the link below and if you need a cassette, you can find it in the "Spare parts ".

If you need equipment for your repairs, we've got what you need to maintain and repair your bike.

Have a problem? 

Your gear lever is touching the handlebar
Your wheel is bent

Visit one of our Decathlon workshops. You should not ride the bike while the wheel is still bent.

Have a problem? 
Repairing a flat
You've broken your frame

The frame, stem, and handlebar on your bike are guaranteed for life.

The guarantee applies only for suitable use. Your bike is designed for low-level sport use. If you use your bike for mountain biking or downhill and the frame cracks, the guarantee will not apply.

You'll find the rest of the details on the guarantee by clicking on the link below.

Have a problem? 

Haven't been able to fix your problem or find what you need?

Please contact one of our technicians who will be happy to help

Spare parts

Cycling isn't without danger. A branch could get caught in your derailleur. The benefit of the Riverside 100 is that you have a whole range of spare parts available.

All spare parts for the riverside 120

How to install a stand on your riverside bike
Fitting a pannier rack on your riverside bike
How to install mudguards on your riverside bike
Which baby seat to use on your riverside bike

Your bike is compatible with the Groovy baby seat sold in Decathlon stores.

Caution: Baby seats that use Hamax type fastening nuts are not compatible with Riverside size S bikes.


Workshop services

Every Decathlon store has a workshop for maintaining and repairing your Riverside 120. Read on for all the services our trained technicians can provide to help you.

User guide and software app



Riverside commits to doing as much as possible to reduce gas emissions created by manufacturing bikes.
Each component is designed to have the smallest possible carbon footprint .

We guarantee the frame, stem, and handlebar for life.