Well after 12 weeks of riding I returned my Triban 3 to Decathlon . The trouble was ,after lots of attempts to adjust the front mech I was still getting intermitent rubbing of the chain when on the outer chainring. I checked it and was sighting down the chainring from above and noticed there was about a quarter of an inch side to side movement in the chainrings , hence the intermitent rubbing and no amount of tweaking would resolve it and the pedals, bottom bracket were tight. I contacted Decathlon and they picked the bike up for inspection. When I called to ask what they would do they said because of the scratches on the bike they would replace it anyway , don`t know if got damaged by the courier re the scratches. However, I had been toying with the idea of putting a shorter stem on the 57cm triban as I felt a little stretched and my arms were stretched straight out. Also when I used the forearm from front of saddle to handlebars, I know it`s only a basic guide, there was about 30+cm gap between the handlebars and my fingertips. So I asked if they would replace the 57cm to a 54cm. I am just a little over 5`9" with 32 " inseam, I must say the 54 feels a better fit for me , the forearm distance is spot on and , again I know it`s only a basic guide, but I cannot fully see the front hub from the bars whereas they were way out past the bars on the 57cm. I will probably keep this for a little while longer but am really looking at a Cube Peloton for my next bike and there are 2 dealers near me so I can check out size wise before I buy . Still like my Triban though and decathlon are A1 as far as i`m concerned for customer service.