The best mechanical tank selector you can get

an exclusive collaboration with the MotoGP world champion rider

Then we 3D-modeled what we found in order to figure out where the oil was coming from

Manufacturer Part#:CST-517-17-2

BMC Air Filters - Kawasaki ZZR1100 '93-2001 High Performance Air Filter Option:Standard (FM196/03) The best mechanical tank selectorThis High Performance air filter is made from premium material that allow increased air flow and filtration efficiency, blocking containment as small as 7 microns (compared with 10 microns in most other filters). BMC air filters are produced using a "Full Moulding" system. This prolongs the life and durability of the filter. The rubber used in BMC air filtering systems has a long life with optimum adhesion characteristics to all shapes of airboxes.