Description
The D.I.D 520ERV7 is the preferred chain of world-class road racing teams in MotoGP, WSBK and MotoAmerica and is used by prominent racers such as Valentino Rossi, Andrea Dovizioso and Alex Rins. The improved version of the 520ERV7 compared to the 520ERV3 features 3% higher tensile strength, 13% longer chain life and less friction due to improvements in the X-ring material, resulting in even higher performance and durability.
Chain features:
- Division: 520
- Color: gold
- Length of links: 140
- Lock type: Endless
- Chain type: X-ring chain
- Chain name: 5/8 x 1/4 x 10,16
- Wheel diameter d1:10.16 mm
- Chain type: 520
- Chain pitch P: 15.88mm = 5/8"
- Inner chain width b1:6.35mm = 1/4"
Overview of available sizes
| Name | Ø d1 | Type | Division P | Width b1 |
| 1/2 x 3/16 x 7.75 | 7.75mm | 415 | 12.70 mm = 1/2” | 4.76mm = 3/16" |
| 1/2 x 1/4 x 7.75 | 7.75mm | 420 | 12.70 mm = 1/2” | 6.35 mm = 1/4” |
| 1/2 x 5/16 x 8.51 | 8.51mm | 428 | 12.70 mm = 1/2” | 7.94mm = 5/16" |
| 5/8 x 1/4 x 10.16 | 10.16 mm | 520 | 15.88 mm = 5/8” | 6.35 mm = 1/4” |
| 5/8 x 5/16 x 10.16 | 10.16 mm | 525 | 15.88 mm = 5/8” | 7.94mm = 5/16" |
| 5/8 x 3/8 x 10.16 | 10.16 mm | 530 | 15.88 mm = 5/8” | 9.53 mm = 3/8” |
| 5/8 x 3/8 x 11.10 | 11.10 mm | 532 | 15.88 mm = 5/8” | 9.53 mm = 3/8” |
| 3/4 x 3/8 x 11.96 | 11.96mm | 630 | 19.05 mm = 3/4” | 9.53 mm = 3/8” |
| 3/4 x 3/8 x 12.70 | 12.70mm | 632 | 19.05 mm = 3/4” | 9.53 mm = 3/8” |
About the manufacturer D.I.D
D.I.D is a manufacturer of drive chains and other products for the motorcycle and automotive industries. In addition to drive chains, the company also sells sprockets, chain kits and other drive elements that play an important role in improving vehicle performance and safety. In the motorcycle world, D.I.D is best known for its premium motorcycle chains, such as the X-Ring and ZVM-X chains, which are very popular due to their durability and performance. D.I.D is also the No. 1 original parts manufacturer for Japanese and European motorcycle manufacturers.