Cleaning my electric bike yesterday and I noticed a few splits at the spoke holes on the rear wheel rim. So, I've been researching replacement rims and have come up with a few (Rigida Sputnik, Rigida Chrina, Exal ML21, Exal EX21, Mavic A119, Mavic A319) and wondered whether anyone had any thoughts/experience regarding this subject. This leads me onto my next question: are 13g spokes necessary on a 36 hole rim? There seem to be some interesting alternatives out there such as DT Alpine Swiss III spokes which are triple butted, strong and yet light. Again, anyone with any thoughts? My budget is not unlimited, so no exotic suggestions please! Thanks in advance for your replies.