Keihin Flat-CR (FCR) Carburetor
Product Information
On-Road Motorcycles & ATV
Keihin Flat-CR (FCR) Carburetor
Originally designed and developed on world-class Superbike racing circuits, the Flat-CR carburetor broke new technological ground with an innovative flat-slide throttle valve that rides on roller bearings. This practically frictionless design allows for much lighter throttle return springs and a finer degree of power control for riders. Produced with the highest level of technology available, the Flat CR has proven its advantage with race wins around the world.
Flat-CR Features and Benefits:
- Industry leading Keihin precision fit, finish, and hardware
- Smoothbore venturi for maximum air flow
- Throttle valves are supported by rollers and opened with a progressive linkage for smooth operation and control.
- Vacuum release plate (separates engine vacuum from the throttle valve)
- Equipped with accelerator pump for rapid acceleration without flat spots
- Available in down-draft and side-draft configurations from 28mm to 41mm throttle bore
- Modular design with single, dual, and multi cylinder applications for easy installation on popular motorcycles
- Easily tunable with a wide range of jetting parts available
- Throttle Position Sensor (TPS) available for some applications
