ISA Sprocket
ISA Sprocket
Bolzen - Bolts and Nuts
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SPROCKET Our Sprockets, with unparalleled strength and accuracy, cutting from extra super duralumin and which are made from the hard anodized aluminum, conform many Japanese and foreign bicycles' models and the number of teeth for both on and off road. Our satisfactory products surely meet your needs for conversion.
BOLZEN Bolt and Nut, shaved out of well examined titanium, aluminum and stainless steel, which are tangible and highly precise, thanks to the consistent production by our NC machines in the factory. The fine design tickles enthusiastic minds.

 I.S.A Co., Ltd.
Minamirokujo-cho 79-1, Tenri, 632-0098 Japan
ISA Sprocket