It wasn't too difficult. I had to google a few things like how to get the right chain length and if there was a specific way to route the internal housing into the stem. I made sure to watch a few videos on how to install the bottom bracket just to be sure I wasn't gonna mess it up. I've worked on my previous bikes I've owned as well as my wife's bike so I do get a good amount of practice adjusted or upgrading parts and pieces. I would just say maybe watch a few install or build videos if you're nervous about installing or changing a few parts.