DescriptionPerformance up-grade for your XT, TT, or SR500, also XS650. Reduces side force & pitting on the valve tip and gives less noise from valve gear.No modification of the rocker arm needed.Upgrade for the standard adjuster 583-12159-00Sold as a pair (set of 2) – 8.0 diameter, 1.0mm thread. Overall length 22.0 mm.
