Thread: 6mm. They can also be used with a lift stand to lift the rear wheel off of the ground for changing your tire or oiling your chain.. These swingarm spools are designed to protect your swingarm & axle nut in the event of a crash.. Fitment: YZF R1 1998-2012;YZF R6 1999-2012; YZF R6S 2006-2009. Instructions: no instruction,Material: Billet Aluminum.
