described as:
This item, a Durham Elliptical Chainwheel, 54-tooth, provides a unique alternative for the person who thinks he or she has everything bicycle. Not many Campagnolo or Shimano addicts will have a Durham Ellipitical Chainwheel. This comes with instruction sheet. I do not know whether it has been mounted. It has the same bolt hole pattern as a Campagnolo NR or SR crankset.
someone explain this item...
---