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Due to the national holidays as Golden Week, we will close 2018/4/28~2018/4/30 and 2018/5/3~2018/5/6.
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Because the maintenance of the non-seal chain is tough and the drive sound of the chain is concerned, it is a little over spec, but we attached the seal chain. You need a tool, but you can work easily. The effect can be experienced immediately. Friction loss decreased, noise became inaudible, and the maximum speed also increased. It is recommended.