08-12 BMW F650 GS Driven Racing Steel 520 Rear Sprocket
Driven Racing Steel 520 Rear Sprocket Driven rear sprockets are made out of case hardened chromoly steel and machined to exact dimensions Heat treated for greater surface strength Hard anodized for protection against corrosion All sprockets are machined to tolerances no greater than 0.2mm, which is less than half OEM standards 2008-2012 BMW F650GS OEM Specs Front Sprocket - 17t Rear Sprocket - 41t Chain - 525 Pitch/116...