RZ-42Y Crown Liner Clutch Pack these copper plates are specifically

these copper plates are specifically designed to fit Odenthal's line of racing engine motor mounts

Note that some karts and axle bearing cassettes (also known as flanges) utilize a 90mm OD bearing

multiple-mounting holes (that also double as weight reduction)

Allows for careful extraction of roller pin to edge of outer links

RZ-42Y Crown Liner Clutch Pack these copper plates are specificallyCrown Liner Padding for Zamp RZ 42Y Helmets. These pads replace the internal front crown and head lining for the RZ 42Y helmet, and is ideal for the top areas of the helmet when original padding may be oversized, undersized, or compromised by dust and debris, or sweat. One advantage Zamp helmets is the replaceable padding material in each helmet, like this padding. Padding is available in a variety of padding sizes for a variety of helmet sizes.