P&R Profess in Kepong
this shop, rim split in 2 oso they can fix. ive sent a set of my rims to them before for refurbishing n respraying. very very satisfied n pricing was quite affordable for my broke ass 10 years ago.
in Sg Buloh there is one as well.. cant remember the name of the shop but if u look for 66speedbike. next to it is the wheel repair shop. havent sent anything to them. just checked them out while my bike was at 66speedbike.
both of these shops are more like wheel repair foundry... they only do wheel repair n refurbishing. they dont sell, bukak tayar etc all on ur own.