RK RACING CHAIN 420MXZ-80 Steel Link Mx/sx

( Brand: Rk Racing Chain ), ( Manufacturer Part Number: 420MXZ-80 ), ( Product: Roller Chain ), ( Compatible Model: Please Reach Out To Seller To Confirm Compatibilit ), ( Color: Steel ), ( Size: 80 Link ), ( Item Weight: 1.05 Lbs )

Review RK RACING CHAIN Series Steel Link Heavy Duty Mx/sx Non fits MX SX 420 1980

420MXZ-80 Racing Chain for MX and SX Bikes - 420 Steel, 80 Link

The 420MXZ-80 Racing Chain from an esteemed manufacturer is meticulously designed for off-road motorcycles competing in Motocross (MX) and Supercross (SX) events. This top-tier chain is engineered using 420 high-performance steel, ensuring exceptional strength, durability, and resistance to wear and tear.

The 80-link configuration of this chain caters to the demands of high-performance bikes, providing optimal power transfer between the engine and the drive sprocket. Each link is meticulously machined to ensure precise fitment and smooth operation, reducing the risk of chain derailment or skipping.

This racing chain features a roller chain design, where each roller is mounted on a bushing, resulting in reduced friction and improved efficiency. The rollers are also made of chrome-molybdenum steel, which is known for its superior strength and wear resistance.

The 420MXZ-80 Racing Chain incorporates a master link that facilitates easy chain installation and removal without the need for tools. This design feature not only simplifies the maintenance process but also saves valuable time during pit stops.

The 420MXZ-80 chain is rigorously tested to meet and exceed industry standards, ensuring unparalleled performance and reliability on the racetrack. It is specifically designed for high-revving engines and the rigors of off-road racing, making it an essential upgrade for any serious MX or SX competitor.

In summary, the 420MXZ-80 Racing Chain is a high-performance, 80-link chain engineered for Motocross and Supercross bikes. Its 420 steel construction, roller design, and master link make it a durable, efficient, and convenient choice for competitive off-road racing.

The 420MXZ-80 racing chain from MX/SX is a popular choice among motocross and supercross riders due to its durability and performance. However, like any product, it comes with its own set of pros and cons.

1. Increased Power: The 420MXZ-80 chain provides more power transfer between the engine and the rear wheel due to its roller design and reduced weight.

2. Longer Life: The chain's roller design reduces friction and wear, resulting in a longer lifespan compared to OEM chains.

3. Quieter Operation: The roller design also leads to quieter operation, reducing noise levels during racing.

4. Improved Shifting: The chain's design allows for smoother and faster shifting, making it easier for riders to find the right gear at the right time.

1. Cost: The 420MXZ-80 chain is more expensive than OEM chains, making it a significant investment for some riders.

2. Maintenance: While the chain does last longer than OEM chains, it still requires regular maintenance to ensure optimal performance.

3. Installation: Installing the chain can be a more complex process than installing an OEM chain due to its unique design.

The 420MXZ-80 racing chain from MX/SX offers significant performance advantages over OEM chains, including increased power, longer life, quieter operation, and improved shifting. However, these advantages come at a cost, both in terms of initial investment and ongoing maintenance. Ultimately, whether or not this chain is right for you depends on your budget, your racing goals, and your willingness to invest time and resources into maintaining it.

If you're a serious motocross or supercross racer looking for every possible performance edge, the 420MXZ-80 racing chain is definitely worth considering. However, if you're on a tight budget or prefer a more low-maintenance option, an OEM chain may be a better choice for you. Ultimately, the decision comes down to your priorities and your budget.

Details:

All components are heat-treated using KS exclusive HIT Heat Induction Transfer process. RK Racing Chain 420MXZ-80 420 Series Steel 80 Link Heavy Duty MX/SX Non O-Ring with Connecting Link: Packaging May Vary: 420MXZ Chains are made for the serious Motocross racer looking lightest, strongest O-ring. Master link Type: Clip. With a maximum tensile strength rated at 5000 foot pounds and weighing in only 1.76 lbs.

420MXZ Chains feature Chorally steel construction with seamless rollers and bushings, oversized special alloy pins for added strength. There is absolutely no warranty of any kind for an RK Chain used in ANY Racing competition.

part #: 420mxz80 prices

• $28.99-$41.24

specifications drivebeltcycleoi:

• for models: Mx, Sx, 420
• for years: 1980
• brand: Rk Racing Chain
• mpn: 420mxz-80
• product: Roller Chain
• compatible model: Please Reach Out To Seller To Confirm Compatibilit
• color: Steel
• size: 80 Link
• item weight: 1.05 Lbs

returns drivebeltcycleoi:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer drivebeltcycleoi:

• quantity: 3
• sold: 0
• options: Ship-to-home
• started: February 20, 2026
• availability: In Stock

shipping drivebeltcycleoi:

• service: Standard
• transit: 4-10 Days
• cost: $0.00
• type: Fixed
• class: Standard

seller drivebeltcycleoi:

• rating: 99.8%
• city: Anaheim, California
• # reviews: 1683

general drivebeltcycleoi:

• Transmission Drivetrain > Final Primary Drive Parts Kits > Final Drive Belts Chains
• condition: New

payments drivebeltcycleoi:

• credit card: Mastercard
• other
• wallet: Google-pay

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