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The VORTEX RX4 X-Ring 520 chain is a black road-race chain designed for road race and track use only. This 120-link chain features drilled links that reduce rotating mass and Tri Glide X rings designed to reduce friction.
Quad-peened pins and pre-stretching help ensure proper fit. The chain includes a rivet-style master link. According to the manufacturer, clip-style links are available separately for SX3 series chains only and are not included with this RX4 chain.
Manufacturer part number: 520RRX4-120. Vendor part number: 3-520RRX4120.
Features:
- Drilled links reduce rotating mass
- Tri Glide X rings reduce friction
- Quad-peened pins and pre-stretched construction help ensure proper fit
- RX4 Roadrace series chain intended for road race and track use only
- Includes a rivet-style master link