At DMG Motorsports, we present the D.I.D 520ERV7 124L Gold/Gold X-Ring Racing Chain (SKU 690-49124G) — the flagship racing chain trusted by factory teams and championship-winning riders around the world. Built with D.I.D's patented X-Ring seal technology, this 124-link, gold-on-gold chain delivers the strength, low friction, and long service life demanded by serious street riders and racers alike. Whether you're lapping the track or logging hard miles on the street, this chain is engineered to keep your power delivery smooth and your maintenance intervals long.

Features:

• Patented X-Ring seal technology that reduces friction and locks in lubrication better than standard O-ring designs
• Upgraded from the 520ERV3, the 520ERV7 boasts a 3% higher tensile strength, a 13% longer chain life, and less friction due to X-Ring material improvements
• Chosen chain of road racing teams in MotoGP, WSBK, and MotoAmerica, and used by top talents such as Valentino Rossi, Andrea Dovizioso, and Alex Rins
• Average tensile strength is 8,800 pounds, with a weight of approximately 3.41 lbs per 100 links
• Manufacturer rated for use on motorcycles up to 1000cc
• Gold/gold finish on both inner and outer links for a premium, high-visibility look
• 124-link length, ready for street, track, or off-road applications
• Made in Japan and includes one rivet-style master link
• Regular cleaning with X-Ring safe cleaners and lubricants is recommended to maximize chain life