I'm very sorry to have to say this, but service is just really bad (and to some extent dangerous).

My experience:
1) Far too much waiting time, staff does not seem to be organized at all.

2) Missing simple tools:
Apparently there was an issue with the back-wheel that needed the tool to remove the cassette, that was however not available. Luckily they have been able to simply swap the wheel from a presentation bike (that apparently had a few scratches, but that is more or less fine for me).
When I was in the store and like to get the left crank changed (have a left crank with a pomermeter). But who might have guessed that, they don't have a simple tool to remove the plastic cap of the left crank.
On a serious note, which bike seller does not have the right cassette remover available? I even have these tools personally (in Europe, and now as well here in HK). All these tools you can get in a standard simple bike toolbox for

The size chart of this bike is a little bit confusing customer, different Decathlong websites at different countries showing different height limit to the same size frame, better to try it in the store.

I have been riding RC 520 since a week and its a perfect bike for beginners looking for good road bikes to help you start your biking journey. This bike offers a lot for its price. Totally recommended.

This was undoubtedly and by a clear margin the best bike for the money being charged. In these times of COVID short supply, who else will give a 105 geoupset bike at this price. Plus, it has the service support of Decathlon which was again friendly and professional at the same time. This is one reliable, ease to maintain, great to ride bike. Not the lightest, not the most aero but a great overall package.

Pls don’t ever buy this. I rode my brand new Triban RC 520 for less than 50km on smooth asphalt road and the REAR SPOKES BROKE along with some strange noise coming from the wheel. Experience at Decathlon Kozhikode (for in-warranty product) was the worst imaginable and far below the high quality experience at other Decathlon stores. I offered to wait until they check the problem (also spoke to the Store Incharge) but they said they’ll need ~2 days to just check and diagnose the problem. Its a bicycle, not the human body! It’s understandable that the actual service and spares may take longer but I can’t understand why the person can’t spend 10-15 mins to just identify the cause of the problem and let the customer know. Our cycling group tour plan is now in limbo thanks to DSI Kozhikode

Really good bike on paper as well on Mumbai roads. Have fitted 35c wide tyres and they fit easily making this a perfect road bike for Suburban Mumbai roads!

The overall bike is good but when it comes to changing tires ... especially when u get flat on road, these wheels are nightmare. Even at home it took 4 hours for me to change a single tyre. It will be so tight from all side at the end that it won’t go up.

So if u think tubeless ready rim is any great, forget it if u don’t use tubeless tyres. Else it will make u suffer all the time.

To all those complaining about heavy weights.. This product is actually average weighted like the rest of endurance bikes at this price bracket .. No Bike offers 105 derailers and shifters in this price .. With all these specs you are looking to spend well above 1,10,000 and and still many cokes with Tiagra and not 105 groupset ..
Weight of similarly priced Trek models are 9.8-10kg mainly because they come with Rim brakes . When I checked US websites for upcoming Trek models in 2021 like Domane AL3 , AL4 which is coming only with disc brakes because they trashed the rim brakes it was 10.5 for Medium sized models which is exactly the weight of Btwin models for a much lower price than AL4 .. So there it is .. It's not heavy ... It's because you are not comparing it to the right models ..
and those who all complain about handling .. Me and my friends didn't feel it and even if it comes just remeber that it's an endurance long touring vehicle .. not for quick sprints ..
At this price bracket this bike is a catch ..

Faulty bike. Fragile and bad handling on the bike. Too heavy