High-quality, all-steel sprockets meet the demands of today's highest-horsepower machines
Powerdrive countershaft (front) sprockets are manufactured from case-hardened chromoly steel for the ultimate in strength and durability
They also receive a parkerizing surface treatment for rust and corrosion resistance
Sunstar steel rear sprockets are manufactured from the highest quality 1045 high-carbon steel, and most are heat-treated for added strength and wear resistance
Computer-designed weight-reduction holes are included where possible
Most rear sprockets are zinc-plated, and some have a baked-on durable paint for corrosion resistance
Many conversions are available from unusual 632 and 532 sizes to 630 and 530 sizes for better chain selection, as well as other lighter weight options for racing
NOTE: Any time you use other than the standard front/rear sprocket sizes, clearance must be checked.
NOTE: This is a 520 conversion for the following models: FZS600 FZ6 04-08
YZF-R6 600 03-05
YZF-R6S 600 06-09
When converting to a smaller chain size, especially for racing, be sure to use the highest grade O-ring chain available (non-O-ring heavy-duty acceptable for drag racing).
NOTE: At this time we are not able to specify on our website the standard tooth sizes of the sprockets or size and length of chain for your motorcycle. We will display every sprocket that fits. If you need the standard tooth size information or chain size and length, call us toll-free at 800-969-7504