Might be a dumb question but I'm not sure what the heck is wrong. New chain,new cassette, new shift cables, new sprockets. On a 9er air 9 hard tail, it seams like the chain is jumping on the rear cassette when I am in a low gear (small sprocket on the rear) really cranking on it. Only when I am really cranking on a fast up hill or flat? Almost thinking the cassette is jumping on the hub?????
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