Triumph Chain and Sprocket Set - ProSeries - Custom Designs

*This listing includes a CUSTOM MADE TO ORDER rear sprocket that generally ships in 3-10 business days. Complete Chain and Sprocket Kit All ProSeries Sprockets are Made in the USA from the harder grade 7075-T6 certified aero space industry aluminum for long life and light weight. Kits include a lightweight 7075-T6 alloy rear sprocket, drilled and lightened case-hardened steel front sprocket, and an EK X-ring chain. *The Chain and Front sprocket will be separate items in your cart and will not be included if you delete them from your cart. All 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 f