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. Stock gearing with laser cut steel rear sprocket. All chains in these Vortex kits include a rivet type master link, clip type links are also available (sold separately). OE Gearing 16/45. Vortex Kit Gearing 15/45. Chain Type/Length 525SV3-114Yamaha YZF-R6 2006-2018