TYPES OF KITS AVAILABLE:

WARRANTY KITS

This high mileage performance kit features precision cut case hardened steel sprockets with matched OE gearing and RK's gold or non-gold RX or XW-sealed ring chain. Entire kit is warranted to provide 20,000 miles of street use. (Racing and chain neglect will void warranty)

520 CONVERSION STREET KITS

Drop that 525 size chain for these 520 steel conversion kits. This kit is optimized with quick acceleration gearing and features RK's RX or XW-sealed ring chain with a chromoly shot-blasted front sprocket and premium steel rear sprocket (Chain is available in gold or non-gold)

Q/A QUICK ACCELERATION KITS

Drop that 525 size chain for these 520 aluminum conversion kits. Features chromoly front sprockets and 7075 T6 aluminum rear race sprockets. Kit is geared for racing use and contains RK's RX or XW-sealed ring chain. (Chain is available in gold or non-gold, Sprockets are available in silver or black)

SUPERSTOCK KIT

Features RK's performance sealed-ring chain, 7075 T6 Aluminum rear sprockets and chromoly shot-blasted front sprockets. (Chain is available in gold or non-gold. Rear sprocket available in silver or black finish)

When the teeth of a sprocket become pointed, hooked or worn (as shown) they must be replaced. It's usually a good idea to replace both the countershaft and drive sprocket at the same time. If the rear sprocket is worn, the countershaft sprocket probably needs replacement too, because it is under a lot more load as directs power to the rear wheel.

Also when replacing worn sprockets, install a new chain. Worn sprockets can cause premature wear on a new chain and vice versa.

Although sprockets are virtually maintenance-free, they must be kept in alignment with each other. Careless rear-wheel alignment will throw the countershaft and rear-wheel sprockets out of plane, causing the sides of the teeth and the inside of the chain's sideplates to wear unevenly. Aside from the wear factor, there's also the problem of adverse steering to cope with. Thanks to the flexibility of the roller chain, however, the sprockets can be out of plan to a certain extent without the danger of immediate chain failure occuring.