RK 520 MXU Gold UW-Ring Racing Chain – 120 Links
RK 520 MXU Drive Chain – 120 Links (Gold)
🛠️ Description
The RK 520 MXU is the lightest sealed-ring racing chain on the market, designed for serious off-road and motocross competitors. Built with UW-ring seals, this chain minimizes friction while extending chain life — offering consistent power transfer throughout a moto. At only 3 lbs. per 100 links yet with 8,000 lbs. tensile strength, it provides the perfect balance of strength and lightweight performance.
✅ What’s Included
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(1) RK GB520MXU Drive Chain (120 links, gold finish)
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Clip-style master link
📦 Fitment
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Universal fit for machines requiring a 520 pitch chain
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Ideal for race applications 125cc–500cc off-road bikes & ATVs
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Commonly used in motocross, off-road racing, and ATV competition builds
🛡️ Warranty Info
RK chains are built in Japan to racing standards. Warranty covers manufacturing defects only; racing wear and misuse are excluded.
🔑 Key Features
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Lightest sealed-ring chain available (3 lb. per 100 links)
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UW-ring sealed for long life and low friction
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35.6 kN / 8,000 lb tensile strength
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Extended service life vs. non-sealed MX chains
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Clip master link included for easier install
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
