Hello .. I had a bit of play in my kress bottom bracket, so if its any good to anyone, Thought id post the cad files to a top bracket i designed for my kress 1050 fme, although i believe it should work for the 800 fme also. (though it may be worth cutting a wood prototype before milling from ali) And you may want to check/change the dimension of the rear half of the bracket, depending on your ox. Zip here: (contains iges, step, and ipt files) http://jmp.sh/b/Vu0ClYF8J785pH46HQ15