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d Click here for SEATS CLICK HERE TO GO TO APE'S CYLINDER HEAD CENTER FOR A COMPLETE LIST OF SERVICES.

VALVES, RETAINERS & VALVE SPRINGS

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.

All stainless steel valves
Price Key
$27.95
$33.52
$49.95
GSXR STAINLESS STEEL VALVES
GSXR 1100 thru 1990 5.0 mm stem
All screw adjusting rocker arm. 2.8 mm tip length
984215 Exhaust 25 mm Std size
98036 Exhaust 26 mm .
980042* Exhaust 27 mm .
984216 Intake 28.5 mm Std size
98037 Intake 30 mm .
98068 Intake 31.5 mm .
GSXR 1100 '91 - '92 5.0 mm stem
All shim adjusting rocker arm. 1.7 mm tip length
98106 Exhaust 25 mm Std size
98105 Intake 28.5 mm Std size
GSXR1100w '93 - 99 4.5 mm stem.
98107 Exhaust 27 mm Std size
98207 Exhaust 28 mm  
98108 Intake 31 mm Std size
98208 Intake 32 mm  
GSX 1300R Hayabusa 5 mm stem
98151 Exhaust 27.5 mm Std size
98152 Exhaust 28.5 mm  
98153 Intake 33 mm Std size
98154 Intake 34 mm  
SV650 '99-'09 4.47 mm stem.
98297 Exhaust 25.5 mm Std size
98298 Exhaust 26.5 mm .
98295 Intake 31 mm Std size
98296 Intake 32 mm .

BLANK STEM STAINLESS STEEL AND TITANIUM
VALVES AVAILABLE FOR CUSTOM APPLICATIONS

GSXR750 '86 - '90, 5.0 mm stem
Screw adjuster rocker arms. 2.75mm tip length
98022 Exhaust 24 mm Std size
98023 Exhaust 25 mm .
98055 Exhaust 26 mm .
98024 Intake 27 mm Std size
98025 Intake 28.5 mm .
98054 Intake 30 mm .
GSXR750w '93-'95 4.5 mm stem.
98121 Exhaust 24 mm Std size
98221 Exhaust 25 mm .
98120 Intake 27 mm Std size, Flat Face
98220 Intake 28 mm .
GSXR750 SRAD '96-'99 4.5 mm stem
980221 Exhaust 25 mm Flat Face
980181 Intake 29 mm Flat Face
980086 Intake 30 mm Flat Face
GSXR750 / GSXR1000 2000 - 04 4mm stem
98203 Intake 29 mm Std size
98204 Intake 30 mm  
98206 Exhaust 24 mm Std size
98205 Exhaust 25 mm  
GSXR1000 2005 - 08 4.5mm stem
Stainless replacements for OEM titanium
98377 Ex 24 mm  
98378 Ex 25 mm +1mm
98379 In 30 mm  
98380 In 31 mm +1mm

CLICK HERE TO GO TO APE'S CYLINDER HEAD CENTER FOR A COMPLETE LIST OF SERVICES.

For Valve Lash Shim Sets, click here.

TITANIUM VALVE SPRING RETAINERS -
APE valve spring retainers are machined from aircraft quality titanium bar stock in the APE plant on the latest state of the art computerized CNC machinery.CNC machining allows us to offer such advantages as bored taper keeper holes for exact keeper fit. Special gauging fixtures allow dimensions to be held close to provide exact installed heights when assembling the cylinder head.
APE titanium retainers are shorter than stock to provide additional retainer to valve guide clearance for high lift cams.
APE is the only manufacturer of motorcycle retainers that also builds cylinder heads.
We know how they have to fit, how they have to clear the bucket, etc. No other manufacturer can offer this expertise.
You might think this extra precision is expensive.The fact that we are the manufacturer allows us to provide these super precision retainers at a price everyone can afford. See the chart above for applications.
NO MATTER WHO BUILDS YOUR CYLINDER HEAD, INSIST THAT THEY USE APE TITANIUM RETAINERS.
You'll never see this happen with an APE titanium retainer...
BIKE APE PART # PRICE
GSXR600 '01-'03 TVSR1000GSX 245.95
GSXR600 '04-'09 TVSRS1000GSX-2 245.95
GSXR750 '86 - '90 TVSRS750 245.95
GSXR750 '91-'92 (shim style) TVSRS750SH 245.95
GSXR750 '00-'03 TVSR1000GSX 245.95
GSXR750 '04-'08 TVSRS1000GSX-2 245.95
GSXR1000 2001-2004 (4mm stem steel valves) TVSRS1000GSX 245.95
GSXR1000 2005-2008 (4.5mm stem titanium valves) TVSRS1000GSX-2 245.95
GSXR1100 '86-'90 TVSRS750 245.95
GSXR1100 '91-'92 ( shim style) TVSRS750SH 245.95
GSXR1100 '93-'99 TVSR1100GSX - Availability limited to stock on hand. 219.95
HEAVY-DUTY VALVE SPRINGS -
World famous APE valve springs are made from premium chrome silicone wire for consistant pressure and excellent fatigue life. Racers as well as street riders have come to depend on APE springs for winning performance. For use with any high lift cam and / or agressive camshaft profile.
BIKE APE PART # NOTES PRICE
Suzuki GSXR750 '86 - '90 VS750GSX Street / race 128.34
Suzuki GSXR750 '91-'92 (shim style) VS750GSX Street / race VSA204 shims req. 128.34
Suzuki GSXR750T '96-'99 VS750ST Street / race DISC.
Suzuki GSXR1000 2001-2004 (4mm stem steel valves) VS1000S - See Below Street/race - not for use with stock cams. 125.95
Suzuki GSXR1000 2005-2008 (4.5mm stem titanium valves) VS1000S - See Below Street/race - not for use with stock cams. 124.95
Suzuki GSXR1000 2001-2008 - Stock Cams VS1000S-EN Endurance type spring for use with stock cams. 185.00
Suzuki GSXR1100 '86-'90 VS750GSX Street / race 128.34
Suzuki GSXR1100 '91-'92 ( shim style) VS750GSX Street / race VSA204 shims req. 128.34

VS1000S - High performance Valve Springs - Suzuki GSXR1000 - NOT FOR USE WITH STOCK CAMS

These springs have been specifically designed for the GSXR1000 and will correctly fit either APE titanium retainers or oem retainers. The pressures are set up for the GSXR valves so that there is not unnecessary excessive load. GSXR1000 valves weigh less than 2/3 of a Busa valve, so it is not necessary to run Busa type pressures to control the valves in racing applications. Excessive spring pressures are a power robber. As the chart shows, there is plenty of room to shim the APE spring for more pressure.

Spring Seat .300 lift .400 lift .500 lift coil bind
APE #VS1000S 55 lbs. 115 lbs 132 lbs 152 lbs .550"
Stock GSXR 25 lbs. 80 lbs. 102 lbs - .435

VALVE SPRING SHIMS

.060", .030" and .015" thick valve spring shims. A variety of IDs and ODs available.

Click here to see APE's complete list of valve spring shims.