Upgrade your drive system with the DYC 420 Chain kit—pre-sized at 138 links and ready to cut-to-length for perfect fitment on popular 50–125 cc mini/pit/dirt bikes and 196/212 cc go-karts and mini bikes. The kit includes 5 master links for quick trail-side fixes plus a heavy-duty chain breaker tool to size and service your chain in minutes. Built to the 420 standard (pitch 1/2", roller width 1/4"), this chain delivers smooth power transfer and reliable durability for Coleman, SSR, TaoTao, Coolster, Apollo, Baja, Kazuma and more. Trim, install, ride—whether you're refreshing an old setup or finishing a new build, this is the simple, complete solution riders trust.