Cylinder head UMA 180cc Superhead Yamha YZF-R 125

The UMA Racing products are specially imported from Malaysia to offer the best possible performance

The UMA Racing 180cc Superhead cylinder head is a true high-end upgrade for your Yamaha YZF-R 125 and is made for racing. The cylinder head features a reinforced rocker with a 23mm intake and 20mm exhaust valve (19.5/17 in the original head). The reinforced rocker provides optimized stability and durability as well as better long-term performance of the head.

The piston inner diameter of the cylinder for the head is 62-63 mm. With the help of the oval inlet port, the cylinder gets a better fullness, which makes the better performance for the gasoline-air mixture with the size of the cylinder. The cylinder head is delivered and installed in the assembled state, instructions in English with assembly help as well as torque specification are included.