Oil filter
I use Mobile One P/N M1-110 on mine. Twelve dollars and some change. Made for synthetic oil and rates high in all of the oil filter tests I have read. Available at most automotive parts supply retailers.
The filter is about one inch longer, thus allowing more oil. The factory chrome can cover fits over the filter except for a "Non noticeable" 1/2" at the block side of the filter. What else can a guy want?
And no, the front tire does not hit the filter. Far from it.