OK, I was looking at possible freewheel upgrades, in order to manage the hills a little better, and decided to look at my current freewheel just for the heck of it. Since it's new to me, I was under the impression it had the standard 7 speed, 13-24 setup. Darn if it isn't already a 12-28 setup. The markings are "made in Japan". There is a similar freewheel on eBay, and it says it's an Accushift.

Was this 12-28 setup a normal production for Centurion? Is it an Accushift?

Thanks