These are the adjustable sprockets that allow you
to set your cam timings as necessary for your racing or street applications.
APE sprockets are fully machined on the latest state of the art
computerized equipment to precision tolerances and fully heat t
reated for extra long wear life.
APE cam sprockets are used by most leading racers who
demand top performance along with the safety of not chancing
their expensive racing heads to reworked stock sprockets.