Their precision tooling and knowledge of porting is outstanding
Dear Patrick, I’m enclosing pictures and a testimonial for J Precision. Thanks for the help. J Precision designed a port, valve combination for my race motor that far out performed anything out there. Their precision tooling and knowledge of porting is outstanding which gave me the ability to make more useable horsepower and achieve my goals on the race track; 5 time Gene Romero’s West Coast Flat track Series #1 Sadlemens Champion, and 2007 open twin champion.
I highly recommend them for modern to vintage motorcycle application. The best is J Precision.
Owner/Builder, Knight Racing #1
Twins and Singles