O ring O ring Oil seal DID 520 HV VX 120L chain for Universal Dirt Bike ATV Quad MX Enduro Motocross Racing Off Road Motorcycle|Chain Sets| - AliExpress
D.I.D - 520 x 114 - 520 Standard Series Non O-Ring Chain, 114 Links for sale online | eBay
$111.95 DID 520 V High Performance O-Ring Chain-120 #879067