Will a 40-41 chain fit a 428 sprocket

JimD

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No it will not. The roller in a #41 and #420 are the same .306 and the roller in a #40 chain is .312 BUT the roller in a #428 is .330 and that is to large to get all the way down in the valley of the sprocket. #428 chain takes a special sprockets which needs a special hob for the teeth. #41, #420 and #40 can use the same hob.
 
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