i have found that bearing in the top picture at SJS http://www.sjscycles.co.uk/product.asp?pf_id=11467&src=froogle - -says its a push fit bearing for frames without a thread. Check park tools for a way to get these out...
@zeflar started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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i have found that bearing in the top picture at SJS http://www.sjscycles.co.uk/product.asp?pf_id=11467&src=froogle - -says its a push fit bearing for frames without a thread. Check park tools for a way to get these out...