The sram pc850 8 speed chain is a great value replacement chain which compatible with both 78 speed road and mtb systems this chain features the easy to use powerlink connection which can be opened and closed without tools sram are passionate about cycling they ride their bikes to work and around town they also ride their bikes in the peloton on the trails and down the mountains itrsquos this passion and participation that leads to many of the innovations seen in their products we hope