The EK 630SRO-98 is a high-quality 630 series O-ring chain designed for dirt bikes, ATVs, and street motorcycles. With 98 links and a durable sealed construction, this chain helps maintain internal lubrication while keeping water, mud, and other contaminants away from critical moving components. It is a dependable replacement for applications requiring a 630-size chain and is built for consistent performance in demanding riding conditions.
Manufactured in Japan by EK, the 630SRO-98 features solid rollers and extended anti-kink bushings to support longer chain service life and smooth operation. The pins are secured to the side plates with quad-staked riveting, providing strong assembly integrity under load. These construction details make the chain well suited for off-road and street applications where durability, resistance to contamination, and reliable power transfer are important.
Fitment should be verified against the vehicle manufacturer’s specifications, including chain size, link count, sprocket compatibility, and required clearance. This EK chain is intended for dirt, ATV, and street applications that call for a 630 O-ring chain with 98 links. Manufacturer part number: EK 630SRO-98. Vendor part number: 69-9398.
Features:
- Application: Designed for dirt bike, ATV, and street motorcycle use
- Chain Size: 630 series chain with 98 links
- O-Ring Seals: Help retain lubricant and keep water and mud out
- Solid Rollers: Support durability and consistent chain operation
- Anti-Kink Bushings: Extended bushings help increase chain longevity
- Riveting: Quad-staked pins provide secure attachment to the side plates
- Manufacturing: Japanese-made EK chain
- Fitment: Verify chain size, link count, sprocket compatibility, and vehicle specifications before installation