KOSO Honda Grom/Monkey 61mm 4V Replacement Piston Kit

KOSO's 4V Piston Kit for the Honda Grom / Monkey is a complete piston to be installed in a cylinder kit that fits 4V Cylinder Heads. This is a forged piston that measures 61mm and includes a piston, pin, pin clips, and a set of rings. These are completely forged pistons and is highly prefered over cast pistons. The reason is cast pistons are made up of brittle content, over the much more stout forged piston. Although forged pistons are heavier, it makes up for being stronger, able to withstand higher compression. This enables the engine to rev more and harder providing more power and efficiency. This is and the unique 4 valve design allows for better airflow and increased performance. A strong piston for upgraded big bore Grom or Monkey engines.

Includes:

• 1x 4V 61mm Forged Piston
• 2x Pin Clips
• 1x Piston Pin
• 1x Piston Ring Set