Hello, I am relatively new to road biking (less than a year) and a few months into using Trainer Road. I also swim and run, focused a bit more on running at the moment as I am doing a half marathon in Feb (hope to do about 1 hour 50 min) and my first full marathon in May (just under 4 hours hopefully).
I am trying to keep some biking up though as I hope to try 1 or 2 gran fondos this coming summer. I am currently using a vintage cannondale CAAD3 R900 (free hand me down bike I got this year to see if I actually like biking) on a dumb trainer with Trainer Road and virtual power (wahoo combo speed and cadence sensor).
I want to get a new, used bike (new to me but a few years old) for this coming season that is a bit newer, maybe an aero style bike so I can also use it for triathlon.
My questions are:
1 - Should I plan on using my new bike for outdoor rides and keep the old bike as a trainer only bike? Or is it better to exclusively ride my new bike both outdoors and on the trainer as the new bike will be better in every way, I will be riding a consistent fit and set up, …
2 - I would also like to get a real power meter. I would also then like to be using the same power meter outside and on the trainer. I am aware of some pedal options (favero & vector 3) for power meters but crank based ones seem way more common and popular. However, if I go crank based I won’t be able to switch between bikes easily, or at all in my case maybe. This may not matter if based on the above question if the answer is to only use my new bike for both indoors and outdoors.
3 - For crank based power meters how do I know what will fit on my bike. I would like to consider the used market to save some money but don’t want to buy something that won’t work on my bike.
Thanks for any feedback and information.