04-06 Yamaha R1 Stock Bore MX Series Pistons
Bore Size: 77mm
Compression Ratio: 13:1
Set of 4 Pistons.
CP Pistons are the highest quality pistons you can buy for your Street Bike. To go with there high quality, they also offer many standard features that are not included in many other piston manufactures standard pistons.
CP Pistons come standard with these Features:
-Double Pin Oilers
-Accumulator Groove
-Anti Detonation Grooves
-Light-weight wrist pins
-Moly Skirt Coating
-Boxed X-Forgings
All these features allow CP to produce the best performing pistons available on the market. For more information about these features, please click here.
OEM and Cometic Gaskets are available.
