Camshaft CNC X250RR 8.6 & reinforced Rocker Arms Honda eSP 125/150 Yuminashi

Yuminashi camshafts CNC X250RR 8.6 and big Rocker Arms (eSP 125/150) are designed in conjunction with racing efforts which ensures the customer gets the best power gains.

YUMINASHI Billet CNC X250 8.6 Camshaft Kit is the best option for getting the most out of your Honda eSP 125 or eSP 150 engine.

Yuminashi R&D designed this camshaft to be used in combination with the stock 125cc, 150cc or Yuminashi 31mm valves, with an increased lift and duration to produce a potent curve with solid torque to red-line. 

The stock 12.95mm rocker arm rollers diameter is adequate for all stock camshafts, but high-performance engines with high lift camshafts benefit from larger diameter rollers for the simple reason that the larger face of the 16.9mm rollers accepts a more aggressive lobe profile.

The rocker set with larger, more durable rollers comes together with the camshaft as a complete set to ensure increased durability and reliability.

The manufacturer strongly recommends the installation of the larger roller rockers as camshaft damage will be the direct result of the installation of the camshaft with the stock 125 or 150 roller rockers.

Installing a high-performance camshaft with more lift and duration might affect the operation of the Idle Stop-Start system (if installed on the bike).