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@johnQdarwin
so, ive just changed my chainwheel from 46t to 48t. and got myself a new chain.
been getting a vibration through the crankarm, the right side , the one the chain ring is attached too.
at first i thought it might just be the chain needing to break in or something. but , after a couple of hours ride today , it was still happening. ..... just put the old 46t back on , just to see what would happen and .... no vibration.
both chainrings are brev m . why would i be getting a vibration on the 48t ?
got me a reet bit peeved .