All Balls 28-1025 Yamaha YZ490 YZ 490 1986-1987 Swingarm Bearing Kit

All Balls Swingarm Bearing Kit (28-1025)

Bike Fitment:

• Yamaha YZ 490 1986
• Yamaha YZ 490 1987

Specifications:

• A quality swing arm repair kit from All Balls Racing.
• Bushings are case hardened and plated to prevent wear and corrosion.
• POM composite washer bearings replace thrust needle washers for superior resistance to water and dirt and increase service life.
• Shafts are made from 52100 bearing steel, through hardened and precision ground.
• Needle Bearings are made from 52100 bearing steel and ARC61-65 heat treated ST13 steel shell.