I think the sram chains pale in comparison to shimano. My opinion is that shimano HG-91s are the best new chains available for 8 speed and they shift brilliantly.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear