D.I.D Group is a leading corporation in the field of chain manufacturing, providing high-quality chain products for various industries. With over 80 years of experience, D.I.D Group has established a strong reputation in producing and supplying chains for industrial, agricultural, and many other applications.
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Sprockets
DID sprockets have evolved with the development of the automotive industry. As a sprocket used in automobile engines, the optimal meshing design with the chain suppresses noise and vibration, and its excellent wear resistance contributes to a longer engine life.
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 Tensioners
Combination of the hydraulic mechanism and the no-back mechanism suppresses chain vibration due to torque fluctuations during engine operation, and it automatically follows chain wear and growth, then suppresses noise caused by chain flapping when the engine is in a non-hydraulic state at engine start.
The tensioner body uses aluminum for weight reduction.
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 Levers/Guides
Levers and Guides are parts that guide the chain in a sliding manner, shape the running trajectory, reduce the free span of the chain, and suppresse vibration.
For strength requirements, it has a body made of glass fiber reinforced plastic, aluminum or steel, and the chain running surface is made of low friction plastic containing fluorine. |
 Rims/Spokes/Wheels
The DID rim was born from the constant challenge of reducing the weight of the motorcycle machines required in severe motorcycle racing. The successful development and mass production of aluminum-based light alloy rims have created the era of today’s light and strong alloy rims.
We supply various spokes to manufacturers according to the purpose of use, and we also supply wheels assembled with rims, spokes and other parts to manufacturers. |
 Handle Pipe
Utilizing the aluminum processing technology and surface treatment technology that we have cultivated so far, we are also mass producing and delivering tapered aluminum handle pipes.
The material used is a 7000 series aluminum alloy, and the surface treatment uses alumite treatment, which has been proven in DID rims. We have delivered to the domestic manufacturer such handle pipe having high strength, corrosion resistance and beautiful appearance, just like DID rims. |
 Competitive bicycle chain
As one of our founding products, it has received high recognition both domestically and internationally. Leveraging the technology developed through motorcycle chains, we have developed a lightweight chain with high strength and rigidity.
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Product Catalog 