All Balls Racing Wheel Bearing Kit (25-1076) Category_Helmets Lightening and drill holes are

Lightening and drill holes are designed to improve braking performance and reduce the disc temperature

Oil Seal Kit

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POM composite washer bearings replace thru needle washers and increase service life and superb resistance to water and dirt

All Balls Racing Wheel Bearing Kit (25-1076) Category_Helmets Lightening and drill holes areAll the bearings and seal required to refit a wheel in one convenient package. Features: Premium high speed bearings feature low drag. Double lip seals on both sides to provide superior exclusion of water and dirt Improved grease retention.