>>1820173Just get on the bike and start riding and exploring. I got into cycling as an adult 15 years ago on a 90's Trek 830, a very basic MTB and fell in love with riding. You don't need anything fancy, just a good bike that's the right size for you and you can have a lot of fun.
>>1820287Could be a setup where the lower gear intentionally unthreads once the bike is up to speed, to give an advantage when accelerating from a standing start in the early seconds of a race.
>>1820344I doubt it that will happen any time soon, just look up 3d printed titanium aerobars (and how much they cost). There would need to be major advances in additive mfg. tech to make such things for anything aside from ultra high end custom parts.
>>1820469I would reach out to the guy who makes the innicycle adapter headsets, pretty sure he mentioned possibly making a 1-1/4 version at some point if there's interest.