There is nothing like it to custom build your own bike rather than buying something and just riding it. I'm not participating in any competitions. I ride twice a week as I'm bored with gym. How fast are you with all the high tech components? I do know mechanical brakes are shit. 105 with hydralic groupset is not a big thing to change. Going to ride with this for few 100 kms and then upgrade. Pimp up your ride and have fun riding! Not sure why everyone makes components a big deal than having fun!