Triban RC520 Flat Bar

REF: 8543912



Welcome to the after-sales service page for your Triban RC520 Flat Bar. We have made this bike versatile and comfortable by giving it an aluminium frame, a carbon fork and ergonomic grips. The cable-operated hydraulic brakes are powerful, while the tubeless ready wheels reduce the risk of a puncture. The Shimano 105 groupset provides quick, smooth gear changes.

1/ Assembling your bike

To help you assemble your bike, take a look at our video tutorial! Pay special attention when assembling the stem: the screws which hold the handlebar to the stem need to be tightened in a cross pattern with a torque of 6Nm. Check it out now.

3 / Maintenance

Find all the info you need to keep your bike in good shape

Essential workshop tools

To look after your bike properly, you need to have the right tools.

How to clean your bike

Step 1: Degrease it Step 2: Clean it Step 3: Lubricate it To find out more, click the link below:

What should you check before a bike ride?

In the article below, you'll find all the checks to be performed before any bike ride:

What is the right tyre pressure for your road bike?

The tyre is the only part of your bike in contact with the ground, so it's important to minimise the risk of losing grip. This means keeping your tyre at the right pressure. Find our tips here: 

How to tighten your seat post

To set your saddle correctly, it's important to fasten your seat post properly. A loose seat clamp runs the risk of your saddle dropping during your ride. On the other hand, if you tighten it too much, you might crush your seat post and therefore damage your bike.    The best way of tightening your seat post is to use a torque wrench. We recommend tightening to 6 to 7 Nm.   Be careful not to exceed the maximum height shown on the seat post.

How to mount tubeless tyres

Before starting to fit your tyres, make sure your wheels are tubeless ready.  Follow our tutorial for mounting tubeless tyres.

When to change your tyre

Riding with worn tyres comes with risks: Loss of grip, Exposure to punctures. In this article, we're going to help you avoid a puncture.

When to change your brake pads

To know whether your pads are worn, you'll need to check the thickness of the brake pad lining. If it's less than 0.5 mm, you should change them to prevent your brakes from becoming less effective.

4 / Repair

You're sure to find the answer to your questions in the FAQs

Changing your pedals

Are your pedals broken? Do you want to swap your pedals for clipless ones? Follow our tips. Please note that the screw thread on the left pedal is the other way around. You therefore screw this pedal on anticlockwise. The right pedal has a normal thread.  Make sure to use the correct tool to remove your pedals as you will need to use some force to unscrew them.

Changing an inner tube

If you get a puncture, follow our tutorial to change your inner tube.

How to change your grips

With time, your handle grips will deteriorate, you will therefore need to change them when they are worn out.

The disc is noisy

If your disc is noisy:  - Check that your wheel is properly centred. To do so, undo the screw then re-tighten it.  - Check that your calliper is set properly. - Check that your brake pads aren't worn. - Check the tension of your brake cables.  

Your bike isn't braking well

If you notice that your brakes aren't very effective, there are several things you can do:  - Clean your disc using a brake degreaser. - Check that your brake pads aren't worn. - Check that the cable tension is OK.

How to change your brake cable and housing

Do you need to change your brake cable and/or housing? Follow our tutorial.

The gears are skipping

If your gears are skipping, you should check:  - Whether your drivetrain is worn. - The tension of the cables. - That the derailleur hanger isn't bent. After that, adjust the derailleur.

The derailleur hanger is broken or bent

If your derailleur hanger is broken or bent, you need to change it.  

How to change your chain

Below are our tips on easily changing your bike chain.

How to change your cassette

Worn drivetrain? Want to change the number of sprockets on your cassette? Watch our tutorial to find out how to change your cassette. Please note: the maximum cassette size for this bike is 11 - 34.

How to change your chainrings

Are your chainrings worn? Do you want to change the number of teeth? It's easy to change your chainrings. To do so, simply use an Allen key to undo the screw that holds the chainrings on. Then install the new chainrings. On this bike, the minimum chainring size is 34t.

How to change your derailleur cable and housing

Do you need to change your derailleur cable and/or housing? Follow our tutorial.

5 / Workshop services

You can do all of the procedures described below yourself or you can get your local Decathlon workshop to do them for you. For more information about the services the workshop offers, please click the link below.

6 / Instructions

7 / Warranties

  • Our commitment

    TRIBAN guarantees the frame, handlebar and stem of your road bike for life (in normal conditions of use). The guarantee for other parts is two years.   As soon as you start using the bike, some components will move slightly. It's for that reason that we offer a free check of your road bike within 6 months of purchase.   The table shows the main bike components, the types of wear that aren't covered by warranties, and the warranty length within the European Union.

Triban RC520 Flat Bar (2020)

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