428 or 520 sprockets, which last longer

10-04-2015, 01:50 PM	#1
Mudflap Join Date: Sep 2014 Posts: 1,870	428 or 520 sprockets, which last longer The Lifan 200 has 428, the Roketa (Zong) 200 has 520. It would be handy to have the same size on both so I could carry just 1 spare master link and section of chain in the tool kit I swap between bikes. Does anyone have evidence that 520 sprockets last longer than 428 or vice versa?
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