Tritan Roller Chain,50ft,Riveted Pin,Steel 50-1R X 50FT - Walmart.com
Roller chain 50-2 - ecoplus
Amazon.com: Jeremywell 40 Roller Chain 50 Feet with 5 Connecting Links for Go Karts, Mini Bikes, Scooters, ATV, MTV, Dirt Bike and Other Industrial Machinery : Automotive