Review on 🚴 GANOPPER Single Speed Crank Set Rings - Narrow Wide Teeth Chainring (30T, 32T, 34T, 36T, 38T) for Shimano SRAM Bike Parts by Patrick Burton

The ring is threaded so you need to make sure you have the correct screws. I had to pull some out of an old bike (they're not all the same threads). At first I was surprised to see that the ring rises above the cranks, this is necessary due to the smaller diameter otherwise the chain wouldn't cope with the cranks. Just note that this will change your chain. For me it didn't matter since I used it for a tandem timing chain. A couple of rides with no issues and the finish has withstood chain wear (about 30 miles mountain bike so far).