I saw a 10S Chorus rear cluster at an LBS and was wondering if the spacers were original. They are all black plastic, except for one that is blue anodized aluminum. The aluminum one says something like "6 Spacer 7", which I assume means it should be placed between the 6th and 7th sprockets. Can anyone comment on whether these are the factory originals? Also, anyone know why just one of them is metal?
Thanks in advance.
Thanks in advance.