Factory Karts of America | Shifter Karts (2024)

FZ85

A return to the roots for the karting market, the FZ85 engine kit is a perfect starting point for anyone looking to learn how to drive a shifter or just have some fun on a budget.

Putting out about 25hp to the wheels, this modern 85cc shifter engine is incredibly durable and very affordable to maintain. In addition, it's designed to run on 91 octane pump-gas, to ensure you keep your money in your pocket and maximize your track time. The FZ85 engine will be targeted for use in the Junior-Shifter Class, but is also great for older drivers who still want the excitement of shifting gears without the intense horsepower that can be hard on the body.

FZ125

Bringing back the principles of the honda cr125 shifter class for the karting market, the FZ125 engine kit is a new take on the formula that brings brand new 2024 technology and performance to the budget-friendly spec-125cc shifter class.

Putting out about 36hp to the wheels, this modern 125cc shifter engine is incredibly durable and very affordable to maintain. In addition, it's designed to run on 91 octane pump-gas, to ensure you keep your money in your pocket and maximize your track time. The FZ125 engine will be targeted for use in the spec-125 Shifter Class.

TM 'R2' KZ 125

High-performance 2 stroke racing engine with 6-speed gearbox and dry clutch system, displacement 125 cc, carbon reed valve intake in the crankcase, Liquid-cooled through external water pump.

The TM KZ engine platform has been the most successful brand in the KZ 125cc category. Their new R2 hom*ologation makes improvements in the exhaust & cylinder port timing to deliver the maximum torque to the wheels.

The kz engines are the pinnacle of high-performance racing, producing over 50 horsepower to the crank with only 125cc displacement.They race in the 'Pro Shifter' and 'Master Shifter' categories here in the U.S.

IAME 'Screamer IV' KZ 125

High-performance 2 stroke racing engine with 6-speed gearbox and dry clutch system, displacement 125 cc, carbon reed valve intake in the crankcase, Liquid-cooled through external water pump.

While known as the largest single-speed karting engine manufacture in the world, IAME has now begun to focus their efforts on their kz shifter platform, and the results have been impressive. Their new 'Screamer IV' hom*ologation makes improvements over their previous iteration, and has been winning races all over the world, including becoming the 2023 KZ1 European Champions, which is a huge accomplishment. Here in America, the 'Screamer' KZ engines have been seeing more support and success, and has proven to be able to win at even the highest levels.

The kz engines are the pinnacle of high-performance racing, producing over 50 horsepower to the crank with only 125cc displacement. They race in the 'Pro Shifter' and 'Master Shifter' categories here in the U.S.

IAME SKUSA 175 SSE

The iame 175 sse Super Shifter is specifically engineered around the needs of the American shifter-kart drivers, providing the ultimate driving experience by showcasing a displacement of 175cc. The ideal solution for all drivers wishing to race a top level shifter engine with the benefits and the features of stock class engines.

The “175 SSE” combines the performance of the very best KZ engines while offering increased performance, reliability, consistency and ease of use. Provided with the new specifically developed Tillotson HB-15A diaphragm carburetor, an absolute innovation on shifter-kart engines and manufactured with enhanced components to increase longevity and reduce service costs, this powerplant comes ready to hit the track and turn heads with almost 50hp delivered to the wheels.