ABOUT US

D.I.D branded motorcycle drive chains and aluminum rims have been selected and highly appreciated by domestic and foreign manufacturers, as well as famous racing competitions such as MotoGP for many years. Feedback from manufacturers and harsh racing is fully utilized in the development and production process.

Through D.I.D’s global network, the products have been supplied to manufacturers and motorcycle enthusiasts around the world, affirming high quality and performance, bringing absolute reliability in the global market.

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NEWS

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15 May 2025

Notice Regarding Execution of Business Integration Agreement and Share Exchange Agreement (Simplified Share Exchange) for Business Integration of Tsubakimoto Chain Co. and Daido Kogyo Co.,Ltd’D.I.D’.

Official announcement of the execution of a Business Integration Agreement and a Simplified Share Exchange Agreement between Tsubakimoto Chain Co. and Daido Kogyo Co., Ltd., marking the commencement of their full-scale business integration scheduled for […]

22 April 2025

Company Trip to Bái Đính – Tràng An

D.I.D Vietnam Co., Ltd. Organizes Company Trip to Bái Đính – Tràng An April 19, 2025 – With the aim of strengthening team spirit and providing employees with an opportunity to relax after busy workdays, […]

20 March 2025

D.I.D Motorcycle Chain Expands Its Presence in the Hanoi and Ho Chi Minh Markets

As of March 2025, D.I.D motorcycle chains are gaining increasing attention in Vietnam’s two largest markets — Hanoi and Ho Chi Minh City. Known for their superior quality and exceptional durability, the products continue to […]

18 March 2025

Daido Kogyo (DID) Develops High-Precision Sprockets, Gears, and Chain Components Using Plastic Forming Technology

Daido Kogyo (DID), a leading Japanese chain manufacturer, is advancing the development of high-precision sprockets, gears, and chain components using its proprietary plastic forming technology. This innovation enhances durability and reduces weight, contributing to various […]

17 March 2025

Daido Kogyo’s Home Stairlift Developed in Welfare-Advanced Japan

Daido Kogyo manufactures and provides home stairlifts that allow elderly individuals and those with mobility difficulties to safely navigate stairs at home. Incorporating chain technology cultivated over many years and a design tailored to the […]

COLUMN

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9 May 2025

Understanding Chain Sizes: 420 vs. 428

When it comes to motorcycle chains, numbers like “420” and “428” are not just product codes—they are standardized specifications with real technical meaning. The first digit (e.g., “4”) refers to the chain pitch, which is […]

28 April 2025

The Performance of Roller Chains and Important Technical Terms

Roller chains are an essential part of the power transmission system in many vehicles and machines. To ensure optimal performance and durability, it is crucial to understand the key characteristics of the chain. In this […]

25 April 2025

MIDAS: The World’s Fastest Bicycle Chain | Developed by DID

In competitive cycling, chain performance directly impacts speed, efficiency, and victory. Developed by DID, the MIDAS chain leverages decades of expertise from the motorcycle industry to meet the highest standards of professional cycling. With superior […]

25 April 2025

What Is a Motorcycle Chain? How to Choose and Maintain It for a Smoother, Safer Ride

What Is a Motorcycle Chain? How to Choose and Maintain It for a Smoother, Safer Ride 1. What is a motorcycle chain? A motorcycle chain is a crucial drivetrain component that transfers power from the […]

25 April 2025

DID Rim, Spoke, and Wheel Assemblies – Born from Racing, Built for Performance

DID rims were born from the relentless pursuit of weight reduction demanded by the harsh and unforgiving world of motorcycle racing. In competitive motorsports, where even milliseconds matter, achieving lighter weight without compromising strength is […]