APE is a leading supplier of high performance and racing valves for motorcycles. APE stainless steel valves are precision manufactured from aircraft quality Inconel based stainless steel. This special material offers excellent resistance to heat and distortion. APE stainless steel valves are designed to be used in the most extreme racing applications including the use of exotic fuels, or will give many miles of trouble free street use. They present an outstanding value. In most cases you can upgrade to APE stainless steel valves for less than the cost of replacement stock valves. All stainless steel valves feature hard chrome stems for extra long stem to guide life.
1000J / GPZ1100
98003
Exhaust
32 mm
Std Size
980008
Exhaust
33mm
max stock seat
98004
Exhaust
33 mm
Blank
98001
Intake
38.6 mm
Max stock seat
98039*
Intake
38.6 mm
Blank
980105*
Intake
40 mm
Blank
98002*
Intake
42 mm
Blank
980072*
Intake
44 mm
Blank
900 / 1000 thru 1980 7 mm stem (Radius groove)
98803
Exhaust
30 mm
Std size
98014
Exhaust
31 mm
max stock seat
980008*
Exhaust
33mm
3.512" oal
98004*
Exhaust
33 mm
Bank stem
98802
Intake
36 mm
Std size
98020
Intake
37.5mm
.055" Short - allows installation with adequate valve-to-valve clearance