Phil make a bearing specifically for Formula hubs - called the PW000.
http://www.philwood.com/products/bearinghome.php
I'd be surprised if that didn't fit most other generic hubs.
@Howard started
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Phil make a bearing specifically for Formula hubs - called the PW000.
http://www.philwood.com/products/bearinghome.php
I'd be surprised if that didn't fit most other generic hubs.