Tsubaki Offroad Chain 420 MXC 126 links – overview
The Tsubaki Offroad Chain 420 MXC with 126 links is a high-performance, non-sealed 420 drive chain from Tsubaki's MXC series, engineered for demanding off-road and small-displacement street applications.
Key features
- MXC series chain developed in collaboration with top European MXGP racing teams for maximum reliability and performance.
- Non-sealed construction (no O- or X-rings) for minimal friction and reduced rotating mass, helping more engine power reach the rear wheel.
- Standard 420 pitch chain with 126 links, suited to many 50–125 cc geared motorcycles using 420-size drive chains.
- Gold outer and inner plates (G&G) for enhanced corrosion resistance and a premium appearance.
- Supplied with an FJ clip-type connecting link for straightforward installation and trackside servicing.
- High-quality Japanese manufacture and durable steel construction for long service life when correctly maintained.
Technical specifications
| Manufacturer | Tsubaki |
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| Series | MXC off-road chain series |
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| SKU / Part number | 55316420126 |
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| Chain size | 420 (1/2 inch pitch, approx. 1/4 inch inner width) |
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| Number of links | 126 |
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| Chain type | Non-sealed roller chain (no sealing rings) |
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| Finish | Gold / Gold plates (G&G) |
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| Connecting link type | FJ clip-type master link |
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| Material | Steel |
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| Intended use | Off-road, motocross, enduro and small-displacement street motorcycles |
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| Country of manufacture | Japan |
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Typical use cases
The 420 MXC 126-link chain is commonly used on lightweight geared motorcycles such as 50 cc enduro and supermoto models, small road-going 50–125 cc machines and youth off-road bikes that require a 420-pitch, non-sealed low-friction construction and robust design make it suitable for training, club-level racing and everyday riding in demanding dirt or mixed on/off-road conditions.
Example compatibility
The following table lists selected motorcycle models for which this specific 420 MXC 126-link chain is used as a replacement drive chain, according to professional application data from resellers.
| Brand | Model | Year |
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| Aprilia | 50 RX | 1998–2005 |
| Malaguti | 50 Drakon | 2005–2008 |
| Rieju | 50 Tango | 2007–2022 |
| Motorhispania | 50 Furia Enduro / SM | 2005–2010 |
| Yamaha | DTR50 (DT50R) Norway | 1989 |
This list is not exhaustive; many other 50–125 cc motorcycles specified for a 420-pitch, 126-link non-sealed chain may also use this product.
Benefits in operation
- Reduced drivetrain losses thanks to non-sealed design and carefully engineered roller and plate geometry.
- Stable power transfer under repeated load changes typical of motocross and enduro riding.
- Gold-plated finish that helps resist corrosion from mud, water and road grime while keeping a clean, race-inspired look.
- Wide availability of different link counts within the MXC 420 range, simplifying gearing changes while staying within the same high-quality chain family.
Maintenance notes
As a non-sealed off-road chain, the 420 MXC benefits from regular cleaning and lubrication to maximise durability, especially when used in wet, sandy or muddy chain tension and alignment further contribute to smooth operation and reduced wear of both chain and sprockets.
