KMC Z410 bike chain in 9 COLORS 1/2 in. x 1/8 in. for single speed bikes only. Accepts a single sprocket or cog. Compatible with fixed gear, single speed, direct drive, including cruisers, FIXIE, BMX, and exercise bikes. 112 links. Bushingless constsruction. Choose white, blue, gold, purple, lime green, pink, red, yellow, or brown.