M-Wave Single Speed Cog Set

Perfect for rat bikes

I give it four stars because four fifths of the five piece order worked.Watch out for that 18T sprocket. It's a dud

The sprockets are so thin and the rest is aluminum and I am sure they will split. I am sending them back I try them because they are not what was advertised. Z

I can't recommend this product. There's not enough spacer variation to get a straight chain line and the sprockets are very poor quality. 18T was ok but 16T didn't work at all with a new 3/32" width chain which it was advertised as compatible with. I think the 16T was a QC fail and not a 1/2" pitch but slightly bigger. I swapped this kit out for another which came with a better quality Cr-Mo sprocket with no issues. Shop around. Better options than this.