JT Sprockets 525 Steel Rear Sprocket KTM 950 / 990 / 1090 / 1190 / 1290 Adventure / R / S / T / 950 Super Enduro R Features: 525 pitch JT front sprockets are made from ultra durable Scm420 steel alloy All sprockets are heat-treated and hand-finished to meet or exceed the highest quality standards Will require 520 chain conversion for some models