Originally Posted by
Jakedatc
I am curious about that too.. I am putting 9 speed FD/RD and cassette on my new bike and have been looking for cranks.. have found plenty of 6500 cranks but limited BB.. can i use 6600 instead? or will that eff it all up
You can't use a 6600 in place of a 6500 as the designs are
completely different. The 6500 is an Octalink and the 6600 is an external bearing type.
The 6500 appears to be out of production and you will have to find an NOS one in some bike shops inventory. The only 6500's I've seen advertised recently were Italian threaded so they must be left-overs.
The 5500 is a fine substitute and it should be available for quite some time.