The sprockets are light and haven't cupped significantly after several rides. They installed easily on my yz125.
|Chain Type:||520||Chain Length:||114|
|Front Sprocket:||13||Rear Sprocket:||48|
The MotoSport.com Sunstar Chain & Aluminum Sprocket Kit includes ONE Steel Countershaft (Front) Sprocket, ONE Aluminum Rear Sprocket, and your choice of ONE Premium 520 Drive Chain, each with the following features:
Sunstar is the largest O.E.M. supplier of sprockets and brake rotors in the world. In fact, your motorcycle probably came from the factory with a Sunstar sprocket. Need a reason to choose Sunstar? Every Sunstar product is imbued with superior quality, uses an exclusive heat-treatment and quenching process, is based on advanced research and design, and is sold at an added value price.
Sunstar Front Sprocket 520:
Sunstar Aluminum Rear Sprocket 520:
D.I.D 520 DZ2 Chain - 120 Links:
The All New D.I.D 520DZ2 is the best value in a lightweight, high-performance chain designed for motocross racing.
D.I.D 520 ERT2 Gold Chain - 120 Links:
The D.I.D ERT2 chain is the most trusted chain in Supercross and motocross racing because of its reputation of meeting the high quality demands that are required when pushing the limits. It was designed with the intention of making a chain that is optimized for the purpose of racing. D.I.D beefed up the ERT2 chain by increasing the pin size by 3% to give the chain an average tensile strength of 8,100 pounds. Increasing the strength of the ERT2 chain did not come with a sacrifice of weight, in fact DID was able to shed 5% from the previous ERT chain.
D.I.D 520 ERV3 X-Ring Chain - 120 Links:
The D.I.D ERV3 X-ring chain is the ultimate high-performance, lightweight, low-friction race chain available and is used extensively by many off-road race teams. The ERV3 X-ring chain utilizes D.I.D's patented X-ring technology which reduces friction by 50% over standard O-ring chains for minimized power loss. The pins on the ERV3 X-ring chain have been put through a patented heat-treatment process to produce a pin that is 1.5 times harder than conventional pins. The result is a chain that is significantly stronger and offers better wear resistance than many other chains on the market. D.I.D ERV3 X-ring chains feature a gold-plated finish that resists rust and adds a little style to your motorcycle or ATV.
Renthal 520 R1 Gold Race Chain - 120 Links:
Renthal's R1 Works Chain is a high-strength non O-ring chain with excellent impact load resistance designed specifically to withstand the stress found in off-road applications. This chain is the choice where a combination of high strength, light weight and maximum power transfer are important considerations.
Renthal 520 R3 O-Ring Chain - 120 Links:
Renthal's R3-2 O-ring Chain is a high-strength sealed-ring chain with excellent impact load resistance designed specifically to withstand the stress found in off-road applications where an O-ring chain is desired. This chain is the choice where a combination of high strength, light weight and maximum power transfer are important considerations. The O-rings help extend chain life by retaining the special vacuum-injected grease near the critical pin area. Chain comes pre-stretched to shorten break-in period.
Sunstar 520 HDN Heavy Duty Non-Sealed Chain - 120 Links:
For a quality non-sealed O.E.M. replacement level chain, Sunstar offers the 520HDN (HDN = Heavy Duty Non-sealed). This cost effective replacement chain offers great performance and durability at a great price point. This chain is recommended for any motorcycle up to 250cc and is available in pre-cut lengths. It uses a clip-type master link and provides great strength with a 7,850-pound rating.
Sunstar 520 MXR1 Works MX Racing Chain - 120 Links:
Sunstar's MXR1 Works MX / SX / Off-Road race chain (MXR = Motocross Xtreme Racing) is a premium quality, highly durable non-sealed chain specifically designed for Motocross, Supercross and/or off-road racing. Featuring Sunstar's oversized TripleStar treated ultra hard pins and 100% heat treated components, the MXR1 chain is constructed to handle the demands of the highest levels of racing. This is also one of the lightest MX chains on the market thanks to its superlight design - the 520MXR1 120 link version weighs less than 3.6 pounds, yet is super strong with an 8,970-pound tensile strength rating. Its combination of strength, durability and light weight make it the top choice for serious racers.
Sunstar 520 Road Dualguard Sealed Chain - 120 Links:
Sunstar's heavy duty, street motorcycle chain model is the RDG series (RDG = Road Dual Guard) for 520, 525 and 530 applications. It uses Sunstar's DualGuard sealed ring street bike chain technology where the sealing ring has an 'X' shape - meaning there are two sealing points and two lubrication pools versus the one-sided, single-lip design of a standard O-ring. This sealed ring design type dramatically improves lubricity in high heat conditions while providing lower friction and longer chain life - and it is available for just about every street motorcycle on today's market. It comes in the natural color option and uses a strong rivet-type connecting link. For a higher performance road chain at a non-premium price, the Sunstar RDG answers the bell and is great for everything from everyday commuting to closed course riding.
Sunstar 520 XTG Tripleguard Sealed ATV & Off-road Chain - 120 Links:
An excellent choice for the most extreme off-road conditions encountered in ATV and/or off-road motorcycle racing, Sunstar's premier sealed Works level chain is the 520XTG (XTG = Xtreme Triple Guard). It features Sunstar's TripleGuard sealed ring technology meaning there are 3 sealing lips and lubrication pools per side of the ring versus a single sided lip that is typical of standard O-rings. This design effectively protects the critical areas of the chain from mud, sand, dirt and the harsh conditions encountered in off-road racing (hence the name Xtreme for extreme conditions) and the chain stays well lubricated for a long duration of use. The XTG is perfect for all ATV's and off-road motorcycles 750cc or less. All components are 100% heat treated and its tensile strength is rated at 8,460 pounds. It's offered in pre-cut lengths and uses a press fit, clip-type connecting link in the gold color option (gold outer plates / natural inners).
Note for installing X-ring chains: As X-ring chains are wider than standard roller chains, when fitting an X-ring chain to a motorcycle that was fitted with a non O-ring chain as original equipment, it is essential to check that there is proper clearance of the engine cases near the countershaft sprocket and any other places of close contact. Failure to do so could result in damage to the chain and motorcycle and could ultimately cause the chain to fail.
Note: Image is for reference ONLY, actual product will vary based on fitment and selection.