HelloSo why do you need to change from the RC100?
Are you looking to go faster?
Do you want something more comfortable for riding several hours?
Or is this a social pressure "that's not very high end" thing?
I believe the bike industry is largely built upn selling people far more than they really need, at a far higher price than they need to pay. Remember, if your goal is exercise, and your only race is against the time that the same ride took you last weekend, then the 'better' the bike you buy, the fewer watts you expend every kilometre, and probably every hour.
But if you want greater comfort (I have no idea how good the Triban is for that) check your clothing; if you want greater smoothness, check your bike cleaning regime.
If you have really decided that you have set 1000EUR aside for this, and you are starting from scratch, then don't forget that the bike is only part of your outlay: unless you are already equipped, keep money back for shoes, helmet, clothing, maintainance tools and other essentials, then check what you have left for a bike.
You do not need the same brands and levels of gear that people doing rides of several times the duration, and at much higher speed, than you aspire to. Don't get sucked in to the ostentatiousness of so much of cycling culture.
foolenthusiast and his money are soon parted.
Yeah, can't stand ultegra's left shifter, had to change the latest one I bought (thank Gawd, it was under warranty and the replacement came really fast - after 3-4 days it was at my LBS) , I guess that's one of the compromises you have to make + I don't have any experience with the other big brands on road bikes. Usually the LBS I'm using now (and in the past) are/were shimanoholics.Those handlebar shifters do seem a bit odd. You could of course just buy shimano 105 levers and derailleurs and fit those.
Why do you think you NEED disc brakes?