NIYOK SEALING PARTS CO., LTD. - NIYOK has 40 years of professional experience in manufacturing seals.

Bicycle Industry | NIYOK SEALING PARTS CO., LTD.

NIYOK Bicycle Industry Introduction. NIYOK combines expert sealing engineering, 40 years of manufacturing experience, and advanced production equipment to deliver comprehensive sealing solutions for customers worldwide. With over 40 years of sealing component manufacturing experience, NIYOK holds ISO 9001 and IATF 16949 certifications, backed by a complete quality traceability system that ensures consistent delivery across every batch. From 2026, NIYOK is formally expanding into the electric vehicle (EV) and semiconductor sectors — bringing in-house engineering development capabilities that support customized sealing solutions from design through to mass production. We are committed to being your trusted precision sealing partner. Inquiries are welcome.

Bicycle Industry

Sealing Applications in the Bicycle Industry

Sealing Applications in the Bicycle Industry

Bicycle Industry

Bicycle Industry

In the transportation industry, sealing components are directly tied to vehicle safety, fuel efficiency, and service life. Whether in the drivetrain of commercial vehicles, the braking mechanisms of rail transit, or the hydraulic systems of port machinery, NIYOK's sealing solutions offer material selection tailored for high-vibration, high-temperature, and multi-media environments — ensuring reliable operation across varied road conditions and climates.

NIYOK Elevates Sealing Precision in Every Riding Detail.

NIYOK's sealing solutions address the bicycle industry's demands for lightweight construction and high performance, offering material recommendations that balance low friction resistance with weather durability. Whether it's the smooth seal action required by competition-grade components or the waterproofing needs of e-bikes in outdoor environments, NIYOK can provide rubber material and geometry design recommendations tailored to each application, ensuring sustained sealing performance over extended riding use.

Key Features:
．Low-friction material selection (competition-grade applications)
．Mud, grit, and outdoor weather resistance
．UV and wide temperature range material recommendations
．Lightweight material options
．Engineering and QA team support for sample confirmation

Bicycle Applications:
．Fork suspension oil seals
．Rear shock U-cup seals
．Hub dust seals
．E-bike motor waterproof seals
．Disc brake caliper oil seals

Not sure which seal is right for you? Tell us your requirements — NIYOK will take care of the rest. Contact Us
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NIYOK Bicycle Industry Introduction

Based in Taiwan, NIYOK SEALING PARTS CO., LTD. is a seal and rubber products supplier and manufacturer in the Seal Industry.

With over 40 years of sealing component manufacturing experience, NIYOK holds ISO 9001 and IATF 16949 certifications, backed by a complete quality traceability system that ensures consistent delivery across every batch. From 2026, NIYOK is formally expanding into the electric vehicle (EV) and semiconductor sectors — bringing in-house engineering development capabilities that support customized sealing solutions from design through to mass production. We are committed to being your trusted precision sealing partner. Inquiries are welcome. From oil seals, O-rings, to gaskets, and customized products, application industries include manufacturing, chemical processing, defense, water treatment and filtration, hydraulics, fluid power, heavy trucks, automobiles, aerospace, oil and gas, medical and For life sciences, food and beverages, a complete product line is available for customer needs and specifications.

NIYOK has been offering customers high-quality Oil Seal, Seal, Rubber Parts, Gasket, O-Ring, Custom-slit-valve since 1983, both with advanced technology and 40 years of experience, NIYOK ensures each customer's demands are met.