Tsubaki Offroad Chain 420 MXC 136 Links
The Tsubaki MXC 420 offroad chain in 136-link length is a non-sealed, lightweight racing chain engineered for professional motocross and enduro in cooperation with leading MX racing teams, it is designed to deliver maximum power transfer and reliable performance in demanding dirt conditions.
Key features
- MXC offroad racing series developed with top European MXGP teams for high-performance motocross and enduro riding.
- Non-sealed construction (no O-ring or X-ring) to minimise friction and weight so that engine power is transmitted efficiently to the rear wheel.
- 420 chain size with 136 links, suitable for small-displacement offroad motorcycles and minis where a longer 420 chain run is specified.
- Gold-coloured finish on the plates for a distinctive racing look and additional surface protection.
- Precision Japanese manufacturing from a specialist chain producer for consistent quality and durability.
Technical specifications
| Specification | Detail |
| Manufacturer | Tsubaki |
| Series | MXC offroad chain |
| Chain size | 420 (approx. 1/2" pitch x 1/4" inner width standard motorcycle chain) |
| Type | Non-sealed roller chain (no O-ring / X-ring) |
| Number of links | 136 |
| Finish | Gold-coloured steel plates |
| Primary use | Motocross, enduro and offroad riding where a 420 non-sealed chain is specified |
| Application segment | Professional and amateur dirt riding, MX training and competition |
| Country of origin | Japan |
| Manufacturer part number (MPN) | 55316420136 |
Typical applications
- Motocross tracks and jump-intensive circuits where low drivetrain friction and quick acceleration are important.
- Enduro and cross-country stages on lightweight or youth offroad motorcycles equipped with 420 pitch chain drive.
- Replacement for worn OEM 420 chains on machines requiring a 136-link non-sealed chain with offroad-focused performance.
- Mini bikes, pit bikes and small-displacement motorcycles that use 420 chain and benefit from reduced rotating mass compared with sealed chains.
Compatibility
Based on the referenced OEM part number, this Tsubaki 420 MXC 136-link chain corresponds to the following application:
| Brand | Model | Year |
| Beta | 50 RR Enduro | 2018–2020 |
In addition to this fitment, the chain is suitable for other motorcycles that require a 420 pitch, 136-link non-sealed chain as specified by the manufacturer.
