Well that's sorta what I meant. The CL77's used 19" flanged rims and a 200mm DLS brake....at least the ones I've taken apart. Not sure about the CL72, never had one of those in the shop. Now the CA77 used a smallish SLS brake...that's the 305 commonly known as the "Dream".
Didn't know the CB had 18" rims...makes sense though.