和泉チエン List of Products and Services

We would like to introduce our bicycle chain 'IZUMI-V'. This high-quality chain is used in track and keirin racing. It is loved by competitors in track races around the world and has produced many medalists. In addition to being for competitive use, it is also used on fixed-gear bikes (piste) and urban bikes. 【IZUMI-V Features】 ■ NJS Certified ■ Durability: More than three times that of standard chains ■ Quick drive response ■ Stable performance over long periods ■ Connecting link: Bolt-nut type (Standard chain: Spring clip type) *For more details, please refer to the PDF document or feel free to contact us.

Introducing the track racing chain developed for top athletes in cycling, the 'IZUMI-V/-KAI'. The conventional bicycle track racing chain 'IZUMI-V' has received high praise from top athletes around the world for many years. The 'IZUMI-KAI' is an improved version based on the 'IZUMI-V', designed to have even less drive resistance. Both chains feature a unique technology that minimizes drive resistance. The power from pedaling is transmitted efficiently, resulting in effective pedaling force. 'IZUMI-V' - Experience a direct feel of the power transmitted from the pedals. - Decorated with a beautiful gold/black design. 'IZUMI-KAI' - Enjoy a smooth and light feel. - Decoration is eliminated, focusing solely on functionality. Both chains are developed for competitive use. Please select the chain that suits your style. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study about the development of a chain that minimizes drive resistance, achieving a performance level among the fastest in the world. Our bicycle track racing chain, "IZUMI-V," has already received high praise from top athletes. However, in preparation for a world competition, we received a request for a chain with even lower drive resistance than the conventional model. To achieve this, it was necessary to apply a surface treatment to reduce the sliding resistance only on the inside of the bushing. If the entire bushing were surface-treated, we would not be able to maintain the necessary fitting force (interference fit) of the bushing. Since partial surface treatment was difficult, we applied a surface treatment to the entire bushing and then performed our proprietary treatment on the outside of the bushing. This unique process allowed us to successfully reduce sliding resistance by 20% while maintaining the required strength. The chain is available exclusively in gray. It is a product that thoroughly eliminates all non-essential decoration, focusing purely on functionality. 【Case Overview】 Request: A product that surpasses the conventional IZUMI-V. Challenge: It was necessary to reduce drive resistance while maintaining strength. Result: 20% reduction in sliding resistance. For more details, please download the PDF or feel free to contact us.