TBParts - Big Valve Kit for Honda MXS125 Grom and Monkey

These valves are superior in strength and longevity over stock and have different valve profiles as to yield better flow characteristics which in turn produces more horsepower.

Key Features:

• +1.5mm intake valve
• +0.5mm exhaust valve
• Constructed of EV8 stainless steel

Application:

Note: This kit should be installed by a professional mechanic or shop that offers valve job service as the valve seats must be cut to accept the larger valve head diameters and valves sunk deeper to allow for overlap clearances. 
SEE TECH
LINK
http://www.tbparts.com/wp-content/uploads/2017/02/exhaustvalveinstall.pdf
LINK
http://www.tbparts.com/wp-content/uploads/2017/02/intakevalveinstall.pdf