rhydon will only evolve if you make it hold protector and trade it.
You must have a protector which is located in Route 228, you must first evolve Ryhorn to Ryhdon at lvl 42 then give Ryhdon the protector to hold and then trade it with someone, trade it back and you'll get Ryperior.
trade it
level 42 then trade to get ryperior
Rhydon will not evolve in leafgreen or firered you have to migrate it to diamond, pearl or platinum then trade it to evolve it.
Pinsir, Rhyhorn, Ryhdon, ryperior, typhlosion(kinda), torterra, oh yeah and look for more on pokedream.com you person
Rhyperior doesn't evolve, but you can evolve a Rhydon into one by trading it while its holding protector
you have to evolve a ryhorn from the safari zone
To evolve rhydon you must equip it with the protector and trade it, and probably get it back.
dont catch it instead evolve rhydon into it.
It doesn't, ryperior didn't come out until generation 5 srry
Give to a rydon and trade it and it will evolve into a ryperior.
37.