Sram Pc991 Hollowpin 9 Speed Chain

This is a premium, Hollowpin, 9 speed, Power Chain II chain, with 114 links that offers maximum performance levels.
It has a nickel-plated, inner plate and bulged outer plate design, that not only looks good, but offers faster and more accurate shifting in all conditions.
It also has improved PowerRollers, a chamfered inner link design and a powerlink closure system.