The listing is for One pair of black aluminum swingarm spools with 6mm mounting bolts , engraved with "R6"
Spool Size: 1" dia x 1.5 " Long.
Bolt size; M6x50mm
They will fit for:
Yamaha YZF R1 1998-2012
Yamaha YZF R6 1999-2012
Yamaha YZF R6S 2006-2009
swingarm spools or sliders are designed to protect your swingarm and axle nut during crash, swingarm spools or sliders allows operator to lift the bike with a stand from the spools when changing your tire, or oiling your chain. Most bikes come with pre-threaded holes to allow operator to install the spools.