I had very much the same happen to my front wheel in Nica and got it repaired perfectly with a hammer and a welding torch. I was in Granada, went to my friend at "One on One " spanish school and he hooked me up with a taxi driver who then took me around to the " right" people. The repair and story is in this video. https://vimeo.com/42443080
. There is NO BMW MOTO DEALER in Nica but San Jose , CR has the largest and best dealer in Central America. Good Luck.