10-20 Aprilia Tuono V4/RR Driven Racing 520 Front Sprocket
Driven Racing Steel 520 Front Sprocket Driven front 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 2010-2015 Aprilia Tuono V4 OEM Specs Front Sprocket - 16t Rear Sprocket - 42t Chain - 525...