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For sliding friction reduction between crankshaft of road bike and BB
On 2015-07-22 22:06:15
I put the appropriate shim ring of iron on the crankshaft with the convenience of the frame, but since it seemed that rust appeared, I decided to exchange it. It may be my imagination, but I think the rowing became lighter a bit. I am satisfied very much that I could make it with a trial sense in terms of price. Thank you very much.