If you purchase your cams and press on cam sprocket assembly
from GSXRzone.com, we will install the sprockets on the cams
at no charge.
APE adjustable cam sprocket assemblies
allow the cam timing to be adjusted on models with factory pressed
on sprockets. The CNC machined APE adapters are pressed on the
cams in place of the stock sprocket.Then the slotted sprockets
can be adjusted. All assemblies include two adapters, adjustable
sprockets, four bolts. The sprockets are available separately
above, but only fit APE adapters.