Finding a rental spot that's not running scuffed bikes held together with zip ties is the real challenge in tourist towns. Half these places don't do basic maintenance and you end up with something that sounds like it's about to fall apart mid-ride. You can rent a motorbike in Alanya here
https://getrentacar.com/en-US/motorcycle-rental/turkey-alanya . The bikes there are kept in working order, pick what suits you, sort the deposit and paperwork, then head out exploring the coast without stressing about breakdowns or getting scammed on the return.