Features: Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication. Lightweight piston with a tight piston wall clearance for a quieter running engine. Skirt coated for reduced friction and improved break in performance. Ring land treatment for improved ring seal and oil control. Double bridged forging design where noted. Kit includes piston, rings, wrist pin and pin locks. Double bridge forging. Kit Includes: • Piston #8559DA • Ring Set #RIK77.00D3 • Wrist Pin #WP070-SP • Retaining Clips #CW16.
This product would be ideal for Yamaha YZF250 bike owners in the 2001-2004 model year who need to replace the piston or want to improve engine performance.
