Product overview
The Tsubaki Offroad Chain 428 MXC with 146 links is a high-performance motocross and off-road drive chain designed for competition-level to Tsubaki’s MXC off-road series, it is engineered specifically for professional dirt track conditions and developed in cooperation with leading MX racing teams to deliver maximum reliability and power transfer in demanding terrain.
Key features
- Off-road specific 428-pitch drive chain from Tsubaki’s MXC series
- Non-sealed (no O- or X-rings) construction for extremely low friction and weight
- Developed together with top European MXGP racing teams for professional use
- Optimised for efficient power transfer from engine to rear wheel in motocross and enduro conditions
- Supplied in a 146-link length, suitable for long wheelbases or large sprocket combinations
- Gold-coloured plates for a premium, race-inspired appearance and basic corrosion protection
- Robust pins and bushings for high tensile strength and resistance to shock loads typical of off-road riding
- Includes a clip-type connecting link for convenient chain installation and adjustment
Technical specifications
| Specification | Value |
| Brand | Tsubaki |
| Series | MXC off-road motocross chain |
| Manufacturer reference | 55316428146 |
| Chain pitch | 428 (off-road motorcycle standard) |
| Number of links | 146 |
| Chain type | Non-sealed roller chain (no sealing rings) |
| Primary use | Motocross, enduro and general off-road motorcycles |
| Plating / finish | Gold-coloured link plates |
| Connecting link | Clip-type (spring clip) connecting link included |
| Typical engine category | Small and mid-displacement off-road motorcycles specified for 428 chains |
Performance characteristics
The MXC series is Tsubaki’s motocross-focused solution, created for racing environments where low friction, reduced rotating mass and instant response are more important than extended street absence of sealing rings reduces drag so that engine output is transmitted as directly as possible to the rear wheel, which is especially beneficial on soft, rutted or sandy tracks where drive traction is critical.
The chain construction is optimised for strength and stability under repeated high load, with carefully treated pins, bushings and rollers designed to withstand aggressive starts, hard landings and rapid on–off throttle -stretched manufacturing processes minimise initial elongation, helping the chain maintain adjustment more consistently during early use compared with generic off-road chains.
Typical applications
This 428 MXC 146-link configuration is aimed at off-road motorcycles that use 428-pitch chains and require a longer chain length due to swingarm dimensions, sprocket sizes or specific gearing is suited to:
- Motocross bikes in youth, junior and light- to mid-capacity classes using 428 drive chains
- Enduro and cross-country models with 428 pitch where strong acceleration and consistent traction are required
- Off-road conversions and custom builds specified for 428 chains, where chain length is adjusted by removing or adding links
- Trials and technical off-road motorcycles in applications where a lightweight, free-rolling, non-sealed chain is preferred
Installation and maintenance notes
The 146-link length provides generous capacity for a wide range of sprocket length can be removed during installation with appropriate tools so that the final chain length matches the motorcycle’s wheelbase and sprocket sprocket alignment, chain tension and lubrication are essential factors influencing service life, especially for high-performance non-sealed chains used in abrasive off-road environments.
