Tsubaki 520 RQ2 Road Chain – 120 Links
The Tsubaki 520 RQ2 road chain with 120 links is a high-performance sealed drive chain engineered for real-world street and sport use on motorcycles specified for a 520 pitch chain and engine outputs up to approximately 150 hp.
Main Features
- RQ2 series road chain designed for balanced performance, durability and weight.
- 520 pitch, 120-link configuration for common road and sport motorcycle applications.
- Low-friction X-ring sealing for reduced drag and extended service life compared with standard O-ring chains.
- Gold-coloured outer plates for enhanced corrosion resistance and a premium appearance.
- Factory pre-stretched to minimise initial elongation after installation.
- Supplied with a hollow rivet master link (rivet-type, ZJ) for a secure, permanent connection.
- Recommended for motorcycles with engine output up to around 150 hp.
Technical Specifications
| Brand | Tsubaki |
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| Series | RQ2 road chain |
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| SKU | 55250520120 |
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| Chain size | 520 (5/8" pitch x 1/4" inner width) |
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| Number of links | 120 |
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| Seal type | X-ring, low-friction |
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| Outer plate finish | Gold-coloured steel |
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| Recommended engine output | Up to approximately 150 hp |
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| Master link type | Hollow rivet link (rivet-type, ZJ) |
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| Application type | Motorcycle drive chain for 520 pitch sprockets |
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Performance and Durability Benefits
The RQ2 series is developed for real-world road riding, combining low-friction operation with long service X-ring sealing helps retain lubricant between the pins and bushings while reducing drag compared with conventional O-ring designs, supporting efficient power transfer to the rear wheel over extended mileage.
- Lower mechanical losses in the drivetrain thanks to the advanced X-ring profile.
- Improved wear resistance of pins, bushings and rollers when correctly maintained.
- Gold-plated outer plates offer additional protection against corrosion in everyday use.
- Factory pre-stretching assists in stabilising the chain length early in its service life, helping to reduce the frequency of initial adjustments.
- Sealed construction helps protect internal components from dirt and moisture encountered in mixed weather riding.
Typical Use Cases
This 520 RQ2 120-link chain is suitable as a high-quality replacement or upgrade in many motorcycles where the manufacturer specifies a 520 sealed chain and the correct link count after sprocket and wheelbase is particularly appropriate for mid-displacement and larger road machines operated within the recommended power range.
- Standard replacement for worn 520 chains on street, naked and sport motorcycles that require a 120-link chain before length adjustment.
- Upgrade from basic or non-sealed chains to a durable X-ring chain for intensive commuting and touring use.
- Applications where consistent power delivery, reduced maintenance effort and clean running are priorities.
- Motorcycles used for occasional track days or spirited riding while remaining within the specified power limit of the RQ2 series.
The chain length can be shortened by removing links during installation to match specific motorcycle and gearing requirements, provided that correct tools and procedures are followed according to manufacturer recommendations.
