I agree that bikes are a great way to dip your feet into maintenance. But everything is not swappable. There are a handful of "standards" for each part of the b

I agree that bikes are a great way to dip your feet into maintenance. But everything is not swappable. There are a handful of "standards" for each part of the bike. It's not insane, but replacing a part often requires researching all the standards and understand what you have and what you could upgrade it to. Getting a new bike often requires getting a couple of new tools. That said, if you ride bikes regularly but take it to the shop for maintenance, try doing your next service yourself. There are tons of online videos to help you. It will require an upfront investment of some tools, but they will pay for themselves the second time you use them.