One of the CX motors lists a single bearing. That is ok too. No one has offered that for many decades. The prices are not shown for all of them. Interesting to see a full lineup of motors. Some look very dated and would be quite slow. Personally, I would spend my $100 ($138 Canadian) on the Novarossi if the rear exhaust would fit at all.
http://www.planethobby.com/collectio...ducts/rfx-15tc The ASP blue head .15 is a better deal if you search a bit.