Koso Cam Chain Tensioner - Honda Grom & Monkey (2014-2021)

The Koso High Performance Cam Chain Tensioner (MU623100) is made from high quality materials that could save your engine from expensive damage. Koso came up with this long lasting solution to replace the OEM chain tensioner which has a tendency to wear out prematurely. 

• Koso Part MU623100
• The arm is made with Aluminum 6061, and the wheel is made with JIS SCM415 (=SAE 4115) Alloy Structure Steel (Chromium Molybdenum Steel).
• Works on stock engine and highly recommended to use with Koso Big Bore & 4V Head kit