Genuine Keihin Carburetors in the UK

 

As an authorised UK importer and distributor for genuine Keihin aftermarket carburettors, Mad Biker Designs ensures you receive only authentic Japanese-made components. With many fake Keihin carburettors flooding the market, you can trust that every carburettor, jet, and spare part comes quality-checked directly from Keihin's Japanese facilities. 

 

 

Keihin's reputation speaks for itself - they supply carburettors to major motorcycle manufacturers including Honda, Yamaha, Suzuki, Kawasaki, and KTM. Whether you're into trials riding, motocross, road racing, or karting, Keihin has proven carburettors from their class-leading PWK range and PWM Air Striker versions with throttle position sensors and power jets. 

 

 

We offer competitive pricing on all Keihin carburettors, making premium performance accessible to UK motorcyclists. Trade deals are available on request. 

 

 

 

Producing power without compromise, Keihin PWK carburetors have set the standard for two-stroke ATV, motocross, and off-road racing performance. Featuring a chrome plated D-shape cross section slide and a conventional idle speed adjuster, PWK sets the modern standard for two-stroke carburetor performance. Available in 28, 33, 35, 36, 38, and 39mm throttle bores, there's a PWK carb for nearly any two-stroke engine configuration. 

 

Chromed semi-flat (D) throttle valve for excellent response and flow at high RPM 

Several throttle bores available to give maximum power and flexibility 

Easy jetting with a wide selection of jetting parts available 

Quad Vents: Eliminates post jump bogging from fuel-plugged float bowl vents 

PWK Air Strikers: Directs air to the main nozzle for improved signal and throttle response 

 

 

Designed for high-RPM two-stroke racing engines, PWM is a 38mm, short body carburetor aimed squarely at motorcycle road-racing, flat track, and shifter kart applications where maximum peak power output is the key to lowering lap times. 

 

Shorter overall length for better top end power 

New throttle slide design for improved signal at the main nozzle 

Easy access to both the main and slow jets through the float bowl plug 

Single control for both idle speed and enrichener settings. 

Easy jetting with a wide selection of jetting parts available 

 

 

The market is flooded with Chinese copies of Keihin designs, but these counterfeits compromise performance and safety: 

Poor quality materials lead to premature failure 

Inconsistent manufacturing tolerances affect fuel metering 

Potential safety risks from substandard materials