The MotoSport.com Supersprox 525 Stealth Sprocket And Chain Kit includes ONE Supersprox Front Sprocket, ONE Supersprox Stealth Rear Sprocket, and your choice of ONE Premium Drive Chain, each with the following features:
Sprockets / Chainwheels Included:
Supersprox Front Sprocket:
Supersprox offers a full range of sprockets for most modern motorcycles. Supersprox sprockets last longer, saving on running costs for your motorcycle.
- Made from SCM-435 case-hardened steel for extended life.
- The refined core structure ensures that the teeth will not break when worn, unlike cheap C-45 sprockets.
- Grooves and lightening holes for off-road bikes / lightening holes for street bikes.
- The lightest and strongest sprocket on the market.
Supersprox Stealth Rear Sprocket:
The legendary Supersprox Stealth sprocket motorcycle sprocket is the only hybrid sprocket available for street, MX, off-road and ATV's. Supersprox sprockets last longer, saving on running costs for your motorcycle, and they can offer a full range of sprockets for most modern motorcycles. Supersprox Stealth will last 3 times longer than an aluminum sprocket and is between 10 - 50% lighter than a steel sprocket (depending on model and tooth count). Supersprox guarantees that their sprockets will outlast, outperform and outshine the competition or your money back.
Supersprox Stealth was developed for riding in extreme conditions, where aluminum sprockets can't handle the torque delivered through the chain drive system. Supersprox engineers conceived and developed the combination of the two materials in the millennium year. Supersprox have counted 12 world titles since that time and 2005/06/07/09/10/11/12/13 Dakar wins.
- Only hybrid aluminum carrier / steel tooth sprocket available for all riding types.
- Pound-for-pound, the strongest sprocket on the market.
- Extremely durable and will outlast the competition.
- Designed for bikes up to 1400cc in displacement.
- Guaranteed - it works as designed or your money back!
What is the Supersprox Stealth about? Supersprox Stealth is about longer life, without compromising weight. The primary goal; to last 3 times longer than an all-aluminum sprocket and remain as light as possible. It's about performance and function first and last.
Better than steel! Supersprox Stealth is infinitely better than steel! You just can't achieve this level of strength on a steel sprocket with the same weight. Sure, there are light steel sprockets out there, but they can't handle the torque. Pound (lb) for pound foot (lbs/ft), Supersprox Stealth is the best.
Better than aluminum sprockets! OK, this is no contest! Try 20,000 miles on a Hayabusa with an aluminum sprocket or the whole Dakar rally on one sprocket. What about the Baja 1000? These are extremes and factory teams actually buy Supersprox Stealth for these grueling challenges. Don't waste your money on aluminum, invest in Supersprox Stealth.
Will a steel sprocket damage my chain? Kind of dumb sounding question, but there's a lot of misinformation out there. So, think about bearings for example. They're steel on steel and that works pretty well. Steel on steel is the best combination. So when someone tells you different, you should ask if they only sell aluminum sprockets. Supersprox guarantees their sprockets. If they don't do what Supersprox claims, you can have your money back.
Are the rivets strong enough? There is no doubt that riveting is the only possibility for fixing such a high performance sprocket. Supersprox knows how to use this technology, forging rivets into the sprockets. Supersprox has never had one single rivet break since starting to produce these sprockets. That's over 5 million rivets in the past 11 years.
It's for your bike! It's perfect for any bike up to 1400cc. Do you have a powerful 4-stroke or performance street bike? Covering high mileage or road racing, then this is your best option. A single sprocket can last more than 20,000 miles. Whatever your bike, if you want peace of mind and the knowledge that you have the best of the best, then choose Supersprox Stealth.
Your Choice of Drive Chain:
| Chain |
Chain Type |
Avg. Tensile Strength |
Maximum Rated Displacement |
Weight (pounds per 100 links) |
Master Link Type |
| BikeMaster 525 BMXR X-Ring Chain |
Q4 Seal-ring |
9,000 pounds |
990cc |
N/A |
Rivet |
| BikeMaster 525 BMOR O-Ring Chain |
O-Ring |
9,300 pounds |
900cc |
N/A |
Rivet |
| BikeMaster 525 BMXR X-Ring Chain - Colored |
Q4 Seal-ring |
9,300 pounds |
1,100cc |
N/A |
Rivet |
| BikeMaster 525 BMZR Z-Ring Chain |
Z-ring |
10,420 pounds |
1,300cc |
N/A |
Rivet |
| DID 525VO O-Ring Chain |
O-ring |
9,220 pounds |
900cc |
3.88 |
Rivet |
| DID 525 VX3 X-Ring Chain |
X-ring |
9,980 pounds |
1,000cc |
4.09 |
Rivet |
| DID 525 VR46 X-Ring Chain |
X-ring |
9,980 pounds |
1,000cc |
4.09 |
Rivet |
| DID 525 ZVMX X-Ring Chain |
X2-ring |
10,408 pounds |
1,300cc |
4.65 |
Rivet |
| EK Chains 525 SRX2 QX-Ring Chain |
Quadra-X ring |
9,000 pounds |
1,000cc |
N/A |
Screw-style |
| EK Chains 525 MVXZ2 Quadra-X Ring Chain |
Quadra-X ring |
9,300 pounds |
1,000cc |
N/A |
Rivet and clip |
| EK Chains 525 ZVX3 NX-Ring Chain |
NX-ring |
10,300 pounds |
1,300cc |
4.52 |
Rivet |
| Renthal 525 R4 SRS Road Chain |
SRS-ring |
9,217 pounds |
1,300cc |
N/A |
Rivet |
| RK 525 XSO RX-Ring Chain |
RX-ring |
8,850 pounds |
900cc |
4.30 |
Rivet |
| RK 525 GXW XW-Ring Chain |
XW-ring |
9,300 pounds |
1,100cc |
4.30 |
Rivet |
| Vortex 525 SX3 V3 2.0 Chain |
Tri Glide-X seal |
9,000 pounds |
1,000cc |
N/A |
Rivet |
| Vortex 525 RX3 V3 2.0 Chain |
Tri Glide-X seal |
10,300 pounds |
1,300cc |
N/A |
Rivet |
Notes on Chain Type:
- Q4 Sealed Ring - Q4 seal ring and reinforced pin and roller provide superior wear resistance, higher impact resistance and fatigue strength. Q4 seal ring offers less friction, which leads to less power loss, almost half that of standard O-ring chain.
- X2-Ring - D.I.D proprietary X-ring design. New X2-ring design provides 40 percent greater wear resistance and better overall chain life.
- SX2-ring - Slim-sized SX2 ring strengthen the stiffness by reducing clearance between plates. SX2 ring has better wear-resistant performance than SX ring by 30%.
- Quadra-X ring - EK Chains proprietary X-ring style.
- NX-ring - Adopted new NX-ring and lasts 15% longer than ZVX series.
- SRS-Ring - Renthal proprietary X-ring design. The special SRS ring is pre-loaded during assembly creating a spring effect. As the chain wears, conventional O-rings and X-rings lose their seal integrity, whereas the SRS ring is designed to maintain itself during use, keeping a tighter seal against the side plates. This offers increased longevity as the specially formulated grease remains incased around the critical pin and bushing area longer while also keeping dirt, water and other contaminants out.
- RX-Ring - RK proprietary X-ring design. RK RX-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wear life. Viewed in cross-section, the RK "RX-Ring" has two lubrication pools and seal points versus the single seal point / pool design of a regular O-ring chain.
- XW-Ring - RK proprietary X-ring design. Uses an advanced design with XW-Ring construction for better sealing that provides extended wear and chain life up to 100% over conventional chains. XW-Ring chains are the best high-speed, extreme heat performance chains available today.
- DG-Ring - Sunstar proprietary X-ring design. 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.
- TG-Ring - Sunstar proprietary X-ring design. TripleGuard sealed ring technology where there are three sealing lips and lubrication pools on each side of the ring to maintain top performance in high heat, extreme conditions; the TripleGuard ring type is the best for lubrication and protection.
- Duo Glide (X-Ring) - Vortex proprietary X-ring design. Duo Glide seal design reduces heat and friction resulting in a seven times longer wear life than a standard O-ring chain.
- Tri Glide (X-Ring) - Vortex proprietary X-ring design. Tri Glide seal provides three pockets of lubrication and two stabilizers ultimately reducing heat, friction, and increasing wear life by as much as 10 times over standard O-ring chains.
Note for installing O or X-ring chains: As O-ring chains are wider than standard roller chains, when fitting an O or X-ring chain to a motorcycle that was fitted with a non O or X-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.
Some Helpful Tools: Try the Motion Pro Chain Breaker & Riveting Tool or BikeMaster's Heavy-Duty Chain Breaker & Rivet Tool to make removing your old chain and installing your new chain as easy and painless as possible.
BikeMaster 525 BMXR X-Ring Chain:
BikeMaster is a brand that focuses on quality, performance, and value priced products for motorcycles and ATV's.
- Ideal O.E.M. replacement Q4 Sealed Chain (Q4 seal-ring chain) offers 1.5 to 2 times longer wear resistance than regular O-ring chains.
- Each refined component, designed with computer analysis, provides higher tensile strength.
- Specially controlled heat treatment means tougher material and more durability.
- Q4 seal ring and reinforced pin and roller provide superior wear resistance, higher impact resistance and fatigue strength.
- Q4 seal ring offers less friction, which leads to less power loss, almost half that of standard O-ring chain.
- Round rivet head offers superior rigidity over 2 or 4-point (quad-staked) riveting.
- Average tensile strength of 9,000 pounds.
- Maximum rated displacement (street / off-road): 990 / 800cc.
- Includes rivet master link.
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BikeMaster 525 BMOR O-Ring Chain:
O-ring chain offers high durability. Component designs, optimized with computer analysis, provide higher tensile strength. Specially controlled heat treatment means tougher material. Reinforced roller offers higher impact resistance and longer durability.
- Average tensile strength of 9,300 pounds.
- Maximum engine size of 900cc street / 750cc off-road.
- Includes rivet master link.
- Made in Japan.
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BikeMaster 525 BMXR X-Ring Chain - Colored:
BikeMaster is pleased to announce the addition of colored chains to their BMXR Series Sealed Chain product line. The chains will now be available in red, blue, green, yellow, orange and pink, making it easy for customers to customize their bikes to fit their style.
Made in Japan, each chain is an O.E.M. replacement Q4 Sealed Chain that offers 1.5 to 2x longer wear-resistance than standard O-ring chains. They have been designed with computer analysis to provide refined components and higher tensile strength. Each chain has also undergone a specially controlled heat treatment. This results in a chain that is tougher and more durable. The Q4 seal ring with reinforced pin and roller ensure higher impact resistance and fatigue strength as well as less friction.
The new color chains by BikeMaster are available in 520, 525 and 530 chain types.
- Ideal O.E.M. replacement Q4 Sealed Chain (Q4 seal-ring chain) offers 1.5 to 2 times longer wear resistance than regular O-ring chains.
- Each refined component, designed with computer analysis, provides higher tensile strength.
- Specially controlled heat treatment means tougher material and more durability.
- Q4 seal ring and reinforced pin and roller provide superior wear resistance, higher impact resistance and fatigue strength.
- Q4 seal ring offers less friction, which leads to less power loss, almost half that of standard O-ring chain.
- Average tensile strength of 9,300 pounds.
- Maximum engine size of 1,100cc street / 900cc off-road.
- Includes rivet master link.
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BikeMaster 525 BMZR Z-Ring Chain:
Specifically developed for today's 1,000cc to 1,400cc, high-performance sport machines. High-quality components coupled with a factory-greased seal ring ensures superior rigidity. High-tensile steel used throughout the chain components; larger pins mean loads spread out over wider area, resulting in longer life and more strength. Specially controlled heat treatment means tougher material and more durability.
- Average tensile strength of 10,420 pounds.
- Max engine size of 1,300cc.
- Includes rivet master link.
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DID 525VO O-Ring Chain:
D.I.D is the number one motorcycle chain in the world. D.I.D chains are used by factory races teams from all manufacturers in race series everywhere.
- Premium quality at an affordable price.
- Professional O-ring chain designed for street, off road and ATV.
- Stake riveted with solid bushings for superior strength and extended chain life.
- Average tensile strength of 9,220 pounds.
- Wear life index: 2,500 (standard chain = 100).
- Rated up to a maximum displacement of 900cc.
- Weight (kgs/100 links) = 1.76 (3.88 pounds).
- Includes a rivet-style master link.
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D.I.D 525 VX3 X-Ring Chain:
The VX Series chain is a great chain upgrade from O.E.M. and is D.I.D's most popular and widely used chain on both on and off-road bikes.
- The 525VX3 boasts a 41% longer chain life than the VO Series due to the patented X-Ring seal technology.
- It also has increased rigidity as to reduce flex, which gives you a more responsive and smooth driving experience.
- Max cc: 1,000cc.
- Tensile strength: 9,980 pounds.
- Weight (per 100L): 4.09 pounds.
- Seal: X-Ring.
- Chain life index: 4000.
- Pin length: 0.866".
- Pin diameter: 0.217".
- Inner plate thickness: 2.2.
- Outer plate thickness: 2.2.
- Rivet connecting link.
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DID 525 VR46 X-Ring Chain:
MotoGP rider Valentino Rossi has teamed up with D.I.D to create the signature series VR46 racing chain, with which his Petronas Yamaha Racing Team YZR-M1 will be equipped this season. The chain features VR46's "Sole e Luna (Sun and Moon)" symbol mark, and it runs a silver outer plate, and gold inner plate, with a VR46 yellow master-link. For racing and Rossi enthusiasts, this will be a golden opportunity to use a product backed by The Doctor himself.
- X-Ring seal design gives you low-friction, increased sealing performance for extended chain life.
- Designed in collaboration with renowned motorcycle road racer, Mr. Valentino Rossi.
- Unique look of gold inner plates and silver outer plates.
- Valentino Yellow rivet-style master link.
- Average tensile strength of 9,980 pounds.
- Wear life index: 4,000 (standard chain = 100).
- Rated up to a maximum displacement of 1000cc.
- Weight (kgs/100 links) = 1.86 (4.09 pounds).
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DID 525 ZVMX X-Ring Chain:
D.I.D is the number one motorcycle chain in the world. D.I.D chains are used by factory races teams from all manufacturers in race series everywhere.
D.I.D's engineers are continuously improving chain designs in order to handle the tremendous horsepower loads of today's high performance motorcycles. In developing the new DID ZVM-X series, D.I.D focused on "Rigidity." Traditionally, "Tensile Strength" has been the bench-mark to indicate overall strength, but tensile strength is only a laboratory static measurement of a chain's fracture point. Rigidity, on the other hand, is the ability of a chain to withstand the forces that occur in the real world that riders experience. Increased rigidity means better power transfer from the engine to the ground, greater resistance to stretching under load, and overall improved performance that meets the demands of the current high-power bikes and the people who ride them.
- Increased rigidity for better power transfer and greater resistance to stretching under load.
- Overall improved performance that meet the demands of the current high-power bikes.
- Designed to meet requirements of machines bigger than 1000cc.
- Same excellent characteristics of the ZVM chains, but its new X2-ring design provides 40 percent greater wear resistance and better overall chain life.
- Average tensile strength of 10,408 pounds.
- Wear life index: 4000.
- For use on Superbikes; maximum rated displacement 1300cc.
- Weight (per 100 links): 4.65 pounds.
- Includes a rivet-style master link.
Half the Power Loss - Compared with Normal O-ring chains, D.I.D's patented X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-rings and other makers' modified O-rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss.
1.5 to 2 Times Longer Wear Resistance - Compared with Normal O-ring chains, the X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-ring. X-Rings have the greatest wear resistance of any other type of O-ring or non-O-ring chain.
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EK Chains 525 SRX2 QX-Ring Chain:
The Ultimate Sportbike Chain: The SRX2 Series chains are an excellent value for any street machine. The SRX2 chains feature lightening holes, reduced friction and Quadra X-Ring design which increases chain life from up to two times longer than standard O-Ring chain.
- Can be used for street or dirt.
- Max displacement: Street - 1000cc / Dirt - 750cc.
- Tensile strength: 9000 pounds.
- Quadra X-Ring design - QX-Ring is 40% less friction and 150% more durable.
- Lightening holes reduce weight without compromising strength.
- Comes with screw-style master link; rivet and clip types sold separately.
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EK Chains 525 MVXZ2 Quadra-X Ring Chain:
EK's Supreme Quadra-X Ring Chains, The Ideal O.E. Replacement.
EK's MVXZ2 Quadra-X Ring chain is the ideal replacement chain for any 1000cc street bike. Features like lightening holes in the sideplates, large-diameter pins, and friction-reducing Quadra-X Rings help ensure high-performance and up to two times increased wear life compared to a standard O-ring chain.
- For street use only.
- Maximum displacement: Street - 1000cc.
- Tensile strength: 9300 pounds.
- Standard with rivet-type or clip-type (semi-press) master link.
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EK Chains 525 ZVX3 NX-Ring Chain:
The Pinnacle of Chain Technology.
- Ultra Strong: ZVX3 series chains easily surpass every other brand with a tensile strength of 11,100 pounds.
- New NX-ring: Adopted new NX-ring and lasts 15% longer than ZVX series.
- Minimizing the clearance between the plates: Improved stiffness and weight (4.85/100 pounds).
- Tensile Strength: 10,300 pounds.
- Weight: 4.52 pounds per 100 links.
- Maximum Displacement: 1,300cc.
- MLJ Rivet-type Connecting Link: The MLJ is the most dependable connecting link, more commonly used on street machines. Requires special riveting tool to install.
- Note: May also use the SLJ Screw-type Connecting Link, sold separately.
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Renthal 525 R4 SRS Road Chain:
Renthal's R4 SRS Road chain is a specially developed sealed ring chain utilizing Renthal's Self Regulating Seal (SRS) technology to increase the service life of the chain in road applications. The special SRS ring is pre-loaded during assembly creating a spring effect. As the chain wears, conventional O-rings and X-rings lose their seal integrity, whereas the SRS ring is designed to maintain itself during use, keeping a tighter seal against the side plates. This offers increased longevity as the specially formulated grease remains incased around the critical pin and bushing area longer while also keeping dirt, water and other contaminants out.
The Renthal "Road R4" chain is supplied with a solid pin rivet link, matching the durability of the chain.
- SRS ring technology enhances chain flexibility and offers smoother operation than standard O-ring chains.
- All R4 SRS Road chains feature high-alloy steel plates and pins, solid bushings and rollers, shot-peened side plates for added strength and gold side plates.
- Special quad riveting process and thicker outer plates increases overall strength.
- Chains come pre-stretched from the factory so less adjustment is needed during initial break-in.
- Average tensile strength / Maximum displacement: 9217 pounds / 1300cc.
- Every chain comes with a pair of latex gloves for mess free installation.
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RK 525 XSO RX-Ring Chain:
As part of their continuing quality improvement program, the RK Chain Factory has made a running production upgrade to their best selling 525XSO chain. The 525XSO chain features RK's proprietary "RX-Ring" seal design and is offered in 520, 525 and 530. Viewed in cross-section, the RK "RX-Ring" has two lubrication pools and seal points versus the single seal point / pool design of a regular O-ring chain. RK's new GBXSO chains offer quality, performance and unbeatable value, for all but the most demanding high performance applications.
- High-performing, durable chain that will last five to eight times longer than your standard motorcycle chain.
- Constructed from polished, shot-peened alloy steel providing high tensile strength for maximum performance.
- RK RX-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wear life.
- Side plate treatment helps prevent corrosion.
- Designed to make any motorcycle look stylish.
- Average tensile strength of 8,850 pounds.
- Wear life index: 750.
- Maximum displacement (street / dirt): 900cc / 750cc.
- Weight (per 100 links): 4.30 pounds.
- Includes a rivet-style master link.
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RK 525 GXW XW-Ring Chain:
525GXW is RK's premium quality 525 XW-Ring chain. XW-Ring chains are the best high-speed, extreme heat performance chains available today. So, If you've modified your ride into an extreme high-speed machine, you need the strength and performance of GXW. With a maximum tensile strength rated at 9300 foot pounds and suitable up to 1100cc street bikes and 800cc off-road bikes, GXW can handle anything you dish out!
- New lightweight high-performance sportbike chain.
- Uses an advanced design with XW-Ring construction for better sealing that provides extended wear and chain life up to 100% over conventional chains.
- Constructed from polished, shot-peened alloy steel providing high tensile strength for maximum performance.
- Side plate treatment helps prevent corrosion.
- Designed to make any motorcycle look stylish.
- Average tensile strength of 9,300 pounds.
- Wear life index: 1000.
- Maximum displacement (street / dirt): 1100cc / 800cc.
- Weight (per 100 links): 4.30 pounds.
- Includes a rivet-style master link.
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Vortex 525 SX3 V3 2.0 Chain:
The V3 Chain 2.0 (SX3) is built to last with its new design increasing its wear time to 2 times longer. The V3 2.0 chain uses lightening holes which reduces weight and extending the wear life of the chain. Manufactured in Japan with the highest quality and performance. Includes rivet type connecting link.
- Need a replacement for your O.E. chain - this is the chain for you.
- Lighting holes in the side plates.
- Large-diameter pins.
- Friction-reducing X-rings which helps to ensure high-performance.
- Increased wear life.
- Tri Glide-X seal type.
- Ultra-strong with a tensile strength of 9,000 pounds.
- Maximum displacement: 1,000cc.
- Includes rivet-type connecting link.
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Vortex 525 RX3 V3 2.0 Chain:
The V3 Racing Chain 2.0 (RX3) is a ultra-strong chain for road racing and for street riding. The chain has a tensile strength of 10,300 pounds. Now available in black and gold. The V3 2.0 chain uses lightening holes which reduce weight and extend the wear life of the chain. Manufactured in Japan with the highest quality and performance. Includes rivet type connecting link.
- Minimized the clearance between the plates.
- Improved the stiffness and weight.
- Tri Glide-X seal type.
- Ultra-strong with a tensile strength of 10,300 pounds.
- Maximum displacement: 1,300cc.
- Includes rivet-type connecting link.
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