Chains / Sprockets and Related

  • 360 Degree Chain Brush by Tirox. For all 400/500 series chains. This is without doubt the fastest, most effective, most meticulous, precise and systematic method for giving your chain a thorough cleaning. It will improve the performance of the chain, the sprockets and the engine. The brush – 2.25 coils of 360
  • 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.
  • 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.
  • 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.
  • BikeMaster 520 BMOR Series O-Ring Chains offer some of the highest durability at fractions of the price of other brand chains that claim they are stronger. Specially controlled heat treatment means tougher material which keeps you riding longer. Features
    • Up-graded BikeMaster O-ring chain offers chain offers not only the industry's best value-price but also the highest durability
    • Includes Clip style master link and Rivet Style master link
    • Tensile Strength of 8,000 lbs
    • 650cc max street/dirt use
    Note: This chain is 100 links long and must be cut for use on the RD250/350 which 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.
  • Chain length modification service by Economy Cycle. We will professionally modify any chain to your specified length/number of links. Simply choose the number of links you require. We do not simply cut the chain, the plates/pins (links) are removed and the chain will come ready to install. Choose number of lengths and click add to cart.
  • 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
  • DID ERT3 (supersedes ERT2) 520 Race Chain - Yamaha RZ350 and RD 520 Conversion - Gold. High-performance, lightweight, low-friction chains designed exclusively for racing. This is basically the same chain as the older ERT2, but now with larger and stronger pins. Pins for ER chains are put through a special patented heat-treatment process that is 1.5 times harder than conventional carbon heat treating. Provides the highest wear resistance, tensile strength and impact resistance available. ER chain used by top motocross OEM works teams. Distinctive gold-plated finish. This chain can also be used for the 520 conversion on RD's. Note: This chain is 120 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.
  • DID Standard Series 520 roller chain. Available in multiple lengths. This is an excellent medium grade chain, pre-stretched, anti-kink design, includes clip style master link. This chain is used on the RZ350 and for the RD250/350/400/R5 520 Conversion. Made in Japan. Choose Length and add to cart. Length for reference: R5/RD350/RD250 - 92 Links RD400 - 96 Links RZ350 - 106 Links
  • DID Standard Series 530 Chain - Yamaha RD250/350/400. Made in Japan. High quality solid roller chain. This is our mid-grade chain, great OEM replacement and the best you can get without going to an O-ring type chain. Pre-stretched, anti-kink design. Recommended specifically for bikes not originally equipped with O-ring chains. Includes clip styoe master link. Note: this chain comes in 100 links, 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.
  • Master Links - Multiple pitch sizes / styles (Sold each). High quality master links OEM quality.  Please contact us prior to or after placing your order if you require a master link. It is important to get the correct size/pitch and specific manufacturer when replacing master links. 
  • 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
  • RD400 (all) Rear Sprocket Washer Plate, sold each. Reproduction part no longer available from Yamaha. Replaces OEM part number 90201-66585-00. Laser cut, steel. Also fits XS360, XS400, XS500
  • RK Takasago 525 Chain for Yamaha R5. High quality solid roller chain. Heat treated, shot peened, factory pre-stressed and pre-stretched for long life. Great OEM replacement and the best you can get without going to an O-ring type chain. Recommended specifically for bikes not originally equipped with O-ring chains. Includes master link. Note: this chain comes in 110 links, the stock R5 requires the chain to be modified to 92 links. Optional chain length modification service available, purchase here on on the site under the chain category.
  • Yamaha R5 Economy O-Ring Chain, made in Japan. Reliable high quality O-ring chain at an economical price. Includes 2 master links (one clip style/one rivet style). Note: this chain comes in 108 links, the stock R5 requires the chain to be modified to 92 links. Optional chain length modification service available, purchase here on on the site under the chain category •Solid reinforced rollers and solid bushings for longer life and impact resistance •Quad stake riveted for exceptional shock absorption •Unique protruding bushings designed to reduce kinking and extend O-ring life •Made in Japan
  • Yamaha RD Billet Chain Adjusters. Yamaha RD250/350/400 & RZ350. Sold in pairs. Racing inspired design replaces that common bolt found on stock bikes. Features a fully CNC machined knob section with 3 methods of adjusting 1) by hand with the knurled section, 2) with an open or box end wrench on the hex, 3) with an allen wrench through the end of the knob to the 18-8 stainless steel screw! Available in your choice of 3 finishes: clear, black, or red Anodized and includes a "gold" cad plated alloy lock nut. Click picture for larger and other views. Note: Includes cap and bolt only, does not include adjuster bracket.
  • Yamaha RD250/350/400 Economy Chain. 530x100, reliable high quality chain at an economical price. Good OEM replacement, heavy duty tensile strength. Includes master link. Note: this chain comes in 100 links, the stock RD250/350 require 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.
  • Yamaha RD250/350/400 Economy O-Ring Chain, made in Japan. Reliable high quality O-ring chain at an economical price. Includes master link. Note: this chain comes in 100 links, the stock RD250/350 require 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 •Solid reinforced rollers and solid bushings for longer life and impact resistance •Quad stake riveted for exceptional shock absorption •Unique protruding bushings designed to reduce kinking and extend O-ring life •Made in Japan
  • Yamaha RD250/350/400 JT X-ring Chain 530. High quality X-ring chain in natural finish. X-ring chains are the latest in chain technology and provide the longest lasting chain life, superior to O-ring chains. 9,260 Tensile strength, 4.59lb per 100 links. This chain is 96 links which is the standard length for the RD400. The RD250/350/R5 requires a 92L chain. We do offer a chain cutting service that can be purchased here on the site in the chain section. Note: This chain comes from the manufacturer with a Rivet Style master link. We also offer it with an additonal Clip-on style master link, choose the option you prefer from the drop down box and add to cart.
  • Brand new fresh rubber cush drive for Yamaha RD350 RD250 R5 DS7. Replace your dry-rotted and cracked 30 year old cush drive with newly manufactured OEM replacement. This is an often over-looked part that needs replacing on older bikes and enhances performance, reliability (reduces wear on chain, gears and clutch) and results in a smoother ride and better handling bike. Reproduction part no longer available from Yamaha. Replaces original Yamaha part no. 278-25364-00-00
  • Yamaha RD350/250/R5/DS6/7 Counter Shaft Sprocket Lock Washer. Original Yamaha Part.
  • Front Sprockets - RD350/RD250 (all years 73-75), choose size below. (Sprockets manufactured by JT))(picture may vary from actual sprocket). Choose sprocket size and quantity, then click add to cart.
  • Yamaha RD350/RD250 Rear Sprocket (73-75), by JT, 39 Teeth (picture may vary from acutal sprocket)
  • Yamaha RD400 (C/D/E 1976-1978) Cush Drive Bushing. Reproduction part no longer available from Yamaha. Sold each
  • JT Front Sprockets - RD400 (all years 76-79), choose size below. (Sprockets manufactured by JT). Choose sprocket size and quantity, then click add to cart.
  • JT Sprockets Rear Sprocket, Yamaha RD400 (1979), choose size below (picture may vary from actual product). Available in 37 and 39 teeth. Choose sprocket size and quantity, then click add to cart.
  • JT Sprockets Rear Sprocket, RD400 1976-1978, 38T (picture may vary from actual product)