Triumph Rear Sprockets Sprocket Size:72 Upgrade to a colored chain

Upgrade to a colored chain if you like

- Stock size for Z125 is 43 tooth

offer a perfect fit and come with a lifetime warranty

the MVXZ2 line is also available in gold or chrome

most ProSeries front sprockets are milled with lightening holes for optimum performance

Triumph Rear Sprockets Sprocket Size:72 Upgrade to a colored chainAll ProSeries Sprockets are Made in the USA from the harder grade 7075 T6 certified aero space industry aluminum for long life and light weight. They are machined to exact specs with tolerances much more stringent than other aluminum sprockets and many times tighter than OE sprockets. What this means is that your chain will fit the sprocket better and everything will last longer. Additionally, they are chemically etched to give them a uniform, even