I have a 1981 CSR 1000 with tired chain and sprockets, and I want to change to a 530 chain. Ebay has about 377,437,484,389 kits available for pre 1980 bikes, to get rid of the original 630 chain, but none for my 81 CSR. JT makes a rear sprocket that converts, but not a countershaft sprocket. Anyone out there know of a set of sprockets that will upgrade to a 530? The 630 was fine in its day, but the metallurgy today on 530 chains approach 11,000 pounds tensile strength, I am a touring kinda guy, 530s are more common, etc. etc... as you guys know. Anyone out there had success converting a 1981 or 1982 CSR or LTD 1000 to 530? Thanks.