sumc 12 speed bike chain crescent chain road bike mountain 126 links ultra light bicycle chain for Shimano

I received Shimano compatible SUMC flattop chains and so far I'm impressed. The packaging is premium, I really like how the chains look on the bike. I did a couple of rides so far and the chains are somehow super quiet with a ZTTO ultimate cassette. I used shimano chains with those cassettes and the noise was unbearable, KMC was much better but SUMC is next level quiet. I use it with a newest generation of the Ultimate cassette so the new cassette design might also help. Can't comment on the durability, will see if it lasts. Buying these chains does not make a lot of sense though unless you really want flattop with a non-sram drivetrain since these chains are very expensive.