Vortex GFRA Go Fast 520 Conversion Chain and Sprocket Kit CKG2256 All Vortex Performance Links chain kits are ready to install and require no chain cutting Vortex Performance Links chains are made in Japan to the highest quality specifications in the industry SV3 Series chains feature a dual pocket sealing system resulting in up to 7 times longer wear life compared to standard o-ring chains GFRA (Go Fast) 520 conversion kits with a lower gear ratio are available for most popular models for faster acceleration, aluminum and steel sprockets available. Compare OE gearing to Vortex kit gearing to verify gear ratio differences Hardcoat aluminum rear sprocket. Gearing one down in front, stock rear. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Transmission & Drivetrain\Final & Primary Drive Parts & Kits\Final Drive Kits".The seller is "atvunlimited" and is located in this country: US. This item can be shipped worldwide.