Whether you are building up a full new custom or just freshening up some old BB bearings, the Demolition Mid bottom bracket kit looks good and does the job right. It comes in 19mm, 22mm or 24mm to match your cranks.
Each kit includes two sealed bearings, an internal spacer, curved cone spacers with an etched Demolition logo and washer spacers. Weight is 6 oz, and it is only compatible with Mid BB frames.
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