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520 Chain/Sprocket Conversion Kit for RD250/350/400. Each kit includes a steel 520 countershaft sprocket with correct offset, 520 aluminum rear sprocket and a high quality 520 roller chain made in Japan by DID and cut to the correct number of links for your model. We offer this kit for the RD250/350/400 in the most popular street performance configuration. The RD250/350 kit includes a 14T countershaft sprocket and a 39T rear sprocket and chain. The RD400 (76-78) kit includes a 16T counter shaft sprocket and a 39T rear sprocket and chain. The RD400F (1979) kit includes a 15T counter shaft sprocket and a 37T rear sprocket and chain. Note: All 520 rear sprockets come coated with Titan Tough coating which greatly increases the life of the sprocket. This coating is black, similar to black anodizing . This is the standard gearing for the RD250/350/400 with the front sprocket lowered by 1 tooth for acceleration. Note: RD400 sprockets will require shimming. RD400 Shim kit available separately here on the site. Sprockets made in the USA, Chain made in Japan. Choose model and click add to cart.
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520 Counter Shaft Sprocket. This sprocket is used to convert the standard 530 pitch chain to 520 and includes correct offset. High quality steel sprocket made in the USA. Available for the RD250/350 in sizes from 11-20 Teeth. Available for the RD400 in sizes from 11-18 teeth.
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This sprocket is used to convert the standard RD 530 pitch chain to 520. High quality light weight aluminum sprockets made in the USA. Available in sizes from 37-50 teeth. Other custom sizes avaiable, please inquire. We stock the most common sizes, for other sizes allow 2-4 Weeks for Delivery of this item - Note: All 520 rear sprockets come with a hard anodized Titan Tough coating (black) which greatly increases the life of the sprocket. RD350 sprocket pictured. Choose model, sprocket size and quantity, then click add to cart.
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DID 520 Professional Motorcycle Chain, Made in Japan. High quality, light weight premium chain. Includes clip style master link. Note: This chain is 110 links long and must be cut for use on the RZ350 which requires a 106 link chain. The stock RD250/350 requires the chain to be modified to 92 links, and 96 links for the RD400. Optional chain length modification service available, purchase here on on the site under the chain category. DAI-HARD (DHA) SERIES NZ AND NZ3 NON O-RING CHAIN •D.I.D.’s 520NZ professional high-performance non O-ring chain •DHA pin treatment – hard chromium-carbide layer formed on pin surface •Far better wear resistance than other chains •Up to 19% higher tensile strength •Increased anti-oxidation performance •Solid bushings, quad-riveted pins •Originally comes with clip connecting link •428 NZ available with either gold or black side plates •420 NZ2 has thicker side plates for added strength
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RD400 520 Conversion Shim Kit. Shim kit includes shims for front and rear sprockets used in our 520 conversion sprocket/chain kits for the RD400. Choose model and click add to cart