The bumpers are pretty tough and made to take lots of hits, they will get scraped up, no need to worry about it. That Uni is a pretty tough uni, you needn’t worry too much about damaging it as long as it’s under normal use.
I wouldn’t worry about the seatpost, it shouldn’t be a problem at all.
You can check out this thread from someone who has just been learning and doing a kick-ass job at it by the way, it took me about 4 times as long but I’m going to blame it on my age
This forum is a huge help in getting started, just about every question to be asked has been asked so dig around and use the search function… All your questions will be answered, and if you can’t find the answer, feel free to ask, there are many people here who are VERY experienced and happy to help.
