Reliable, light and darn good looking Compatible with all 64mm 4 Bolt chainrings Narrow/Wide tooth profile helps prevent dropped chains Optimized to ride in heavy mud thanks to specially designed chamfers 7075 Aluminum construction 10sp chain is recommended for use with a 9sp cassette and drive train 64mm 4-bolt 26T 7075AL Black 1/9/10/11/12sp Narrow/Wide ...