JT Sprockets 520 Front Sprocket Ducati 748 / 851 / 888 / 916 / Monster / Multistrada 620 / Scrambler / SS Features: 520 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 Note: Will require 520 chain conversion for some models.