Hey Junk,
It's not oversized - 28.6 is the right size - your solution was down on my list of solutions because I am I have become a fan of Cyclone 2's . I am using a 122.5 spindle. I glad that combination works there were mixed messages whether it would in the blogs I still need to find out if there is more than 1 variations of the Cyclone . I forgot I tried the Suntour Expert combination with no success. I have the XD2's on 2 bikes and love them. These Retro Specialized cranks were made by Sugino - just a little different profile.