Internal Parts

Active filters
High-quality main bearing manufactured to original equipment manufacturer specifications for reliable performance.
Manufactured at leading OEM factories, mainly in Japan. Made to exact OEM specifications for reliable fit and performance.
Manufactured at leading OEM factories (mainly Japan). Made to exact OEM specifications for reliable crankshaft support and long service life.
Precision-made at leading OEM factories in Japan. Produced to exact OEM specifications for reliable performance and long service life.
Precision main bearing made to OEM specifications for reliable performance.
Mounts S&S E/G or Keihin CV style air cleaners to Mikuni HSR 42/45 carburetors. Made in the USA.
Aircraft-grade pushrods with heat-treated steel tips; fits stock stroke lengths.