Wheelie, spares are not easy to get by. If you want a good RD, either it has to have stock parts , or you need to import the parts. I have a few friends at rddreams.com .. and the moderator of the site, Ron, is a person who owns his own garage and the RD is his favourite. Mostly, you will get good RDs ( if you want to buy them ) in the southern part of india ( bangalore, trivandrum ).
