Instead of accumulating lots of bikes and wheels that won’t be used as you progress. Please allow users to sell or trade in bikes or wheels against new purchases
This is a reasonably common request. You should search the forum and vote up one of the already existing threads. In general, though, my feeling is that Drops are accumulated at a fast enough rate that there isn’t much need to really ‘trade in’, as you can typically get enough Drops to buy something else in a few weeks, or less.
What I would think nice, though, would be to ‘hide’ a bunch of the items in my garage I am no longer using so that I don’t have to scroll through such a long list to find stuff I do want to use. This, of course, is also a request in a number of other threads.