The advanced technology found in Keihin CR Racing Carburetors has been proven in over
twelve years of roadracing with countless World Championship and National Championship
Superbike victories. Along the way Keihin has established a respected reputation for
quality, reliability and performance.
Following in their tradition of high technology and performance, Keihin's latest
carburetor design for racing is the FCR designed for downdraft engine design use,
featuring a flatslide throttle operating on rollerbearings in a smoothbore venturi.
This is the ulimate racing carburtor for use on downdraft engines as found in many popular
sportbikes destined for serious competition. Keihin FCR's are the carburetors of choice on
most factory superbikes and endurance teams using inline 4 cylinder engines including Team
Suzuki and Team Kawasaki.
List of Keihin FCR's Available
The Mikuni RS Series Carburetors were designed and built in response to the needs of
the world's top motorcycle road race and drag race teams. They required carburetors which
would satisfy the precise fuel metering demands and high flow volume required by highly
modified race engines. And yet, also provide the smooth, controllable throttle response
that is needed by any rider pushing his motorcycle to its limits on the race track and
under high performance use.
The carburetors need to meter fuel correctly under a wide range of atmospheric
conditions and engine tuning modifications while being easily accessible for trackside
tuning changes which need to be made quickly.
Designed for in-line four cylinder performance motorcycle applications, the Mikuni RS
Series Radial Flat Slide Carburetors offer superior horsepower gains with their maximum
flowing smoothbore induction tract and radial flat slide design. An adjustable accelerator
pump system helps to provide instant throttle response, particularly in the lower RPM
The RS series Carburetors feature a compact design which is 25% lighter
than other performance carburetors, offers quick needle jet adjustment, and uses readily
available standard Mikuni jets. Carburetors are available in 34, 36, 38, and 40mm bore
sizes with different carb spacing for some Suzuki, Kawasaki, and Yamaha motorcycles.
List of Mikuni RS