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1998 KTM 380SX

Sunstar Chain & Works Z Sprocket Combo

Retail: $194.97
$152.99
OEM Stock Sizes for a 1998 KTM 380SX
Chain Type: 520 Chain Length: 118
Front Sprocket: 14 Rear Sprocket: 50
For reference only. Please verify with owners manual.
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FITS: 1998 KTM 380SX change
 
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Product Description

The MotoSport.com Sunstar Chain & Works Z Sprocket Kit includes ONE Steel Countershaft (Front) Sprocket, ONE Steel Rear Sprocket, and your choice of ONE Premium 520 Drive Chain, each with the following features:

Sprockets / Chainwheels Included:

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:

  • Manufactured from case-hardened chromoly steel for the ultimate in strength and durability.
  • "Parkerizing" surface treatment for rust and corrosion resistance.

Sunstar Works-Z Steel Rear Sprocket 520:

  • The evolution of the exclusive Sunstar Z sprocket, now made from the highest quality stainless steel.
  • Weighs up to 50% lighter than standard steel sprockets.
  • 100% heat treated AND even lighter than before with new weight reduction cut outs, but still has a hardness 5 times that of an aluminum sprocket and twice that of a standard steel sprocket.
  • Up to 4 times more durable with 1.2 times the lateral strength of any aluminum sprocket.
  • Great self cleaning capabilities due to the offset tooth design, same as the original Z Sprocket, which extends the life of the entire chain drive system.
  • The lightest steel sprocket available on the market.

Your Choice of Drive Chain:

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.

  • Great value in a lightweight chain.
  • Designed for off-road riding and motocross.
  • The DZ2 has twice the lifespan of the previous DZ.
  • SDH pin treatment - hard chromium-carbide layer formed on pin surface for exceptional strength and wear resistance.
  • Flexible inner soft core absorbs shock.
  • For entry level motocross, trial riding at an affordable price.
  • Average tensile strength of 7,870 pounds.
  • Wear life index: 410.
  • Rated for up to a 450cc motocross bike.
  • Weight (per 100 links): 3.08 pounds.
  • Includes a clip-style master link.
  • Gold finish, 120 links.
  • Notes: DZ and DZ2 Connecting Links are not interchangeable. Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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.

  • Exclusively designed for motorcycle racing.
  • High-performance, lightweight and low friction chain.
  • 3% bigger pin diameter and 5% lighter than former ERT.
  • Provides the highest wear resistance, tensile strength and impact resistance.
  • Average tensile strength of 8,100 pounds.
  • Wear life index: 430.
  • Rated for up to a 450cc motocross bike.
  • Weight (per 100 links): 2.99 pounds.
  • Includes a clip-style master link.
  • 120 links.
  • Notes: ERT and ERT2 Connecting Links are not interchangeable. Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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.

  • Exclusively designed for motorcycle racing.
  • High performance, lightweight and low friction chain provides the winning edge in World Class competition.
  • Features gold color plates.
  • Average tensile strength of 8,650 pounds.
  • Wear life index: 3100.
  • For 250 - 750cc Rally, 750cc Superbike and 250 - 750cc Endurance applications.
  • Weight (per 100 links): 3.30 pounds.
  • Includes a rivet-style master link.
  • 120 links.

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.

  • Shot-peened alloy steel side plates for high tensile strength and maximum impact load resistance.
  • Chamfered inner links to reduce the chance of chain derailment.
  • Extended bushings to reduce friction between outer and inner link plates, maximizing power output.
  • Chromized bearing pins for excellent resistance to wear.
  • Gold color side plates help prevent corrosion.
  • Most perfectly matched chain for Renthal sprockets allowing maximum power at the rear wheel. This also extends the life of both the chain and sprockets.
  • Average tensile strength of 7,644 pounds.
  • Wear life index: 300.
  • Maximum displacement (street / off-road): N/A / 500cc.
  • Weight (per 100 links): 2.13 pounds.
  • Each chain includes master link and a pair of latex gloves for mess free installation.
  • 120 links.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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.

  • Nitrile O-rings extend chain life by retaining special vacuum-injected grease inside the chain joint.
  • Shot-peened alloy steel side plates for high tensile strength and maximum impact load resistance.
  • High-carbon alloy steel bearing pins for excellent resistance to wear.
  • Gold colored side plates help prevent corrosion.
  • Pre-stretched to enhance performance of the chain.
  • Available in 520 pitch only.
  • Average tensile strength of 7,644 pounds.
  • Wear life index: 750.
  • Maximum displacement (street / off-road): N/A / 500cc.
  • Weight (per 100 links): 3.36 pounds.
  • Each chain includes a pair of latex gloves for mess free installation.
  • 120 links.
  • Note: The Renthal R3-2 chain is supplied with both an easy-fit split master link and a superior solid-pin rivet master link which matches the durability of the chain.

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.

  • Deep gold side plates and gold inner plates.
  • Super strong and lightweight design for high performance / racing mini off-road and motocross machines.
  • Utilizes TST (TripleStar Treated) ultra-hard pins and 100% heat treated components for high strength and durability.
  • Seamless rollers and bushings help provide the added life and durability.
  • Average tensile strength of 8,970 pounds.
  • Maximum rated displacement (street / off-road): N/A / 500cc.
  • Weight (per 100 links): 2.99 pounds.
  • Includes clip-style master link.
  • 120 links.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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).

  • Top of the line ATV and off-road racing chain.
  • Features exclusive TG (TripleGuard) sealed-ring technology to guard the chain from sand or dirt entering and causing wear.
  • Built specifically for handling the most extreme conditions encountered in ATV and off-road motorcycle racing.
  • TG-ring design prevents the loss of lubricant and is deigned to perform in any extreme heat or other course conditions.
  • Available only in Gold (gold outer plates / natural inners) finish.
  • Average tensile strength of 8,460 pounds.
  • Maximum rated displacement (street / off-road): 400cc / 750cc.
  • Weight (per 100 links): 3.75 pounds.
  • Includes press fit clip-style master link.
  • 120 links.

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.

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(2)
5.0 out of 5 stars
5 star   2
4 star 0
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1 star 0
1-2 of 2
Overall
Durability
Ease of Installation
Performance
Style
Top 1000 Contributor Verified Purchaser
Location: Mendenhall, MS 39114, USA
Great sprocket combo

A really good combo, and last longer that most we've tried, light weight durable.

Overall
Durability
Ease of Installation
Performance
Style
Location: Redding, CA
Great set up

Great sprockets they have held up really well and perform very well. I wish they had different colors, that's about all.

1-2 of 2
Total Questions (1)
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1-1 of 1
Jeremy 26 days ago Location: gallipolis oh
Does this come with the back sprocket bolts cause i seen buying the sprocket alone it comes with back sprocket bolts?
MotoSport Staff Expert
26 days ago Location: Portland, OR, USA
Yes, the rear sprocket bolts are included with every Sunstar Works Z Sprocket. You would get the bolts with the chain and sprocket kit as well.
1-1 of 1

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