Racing chain DID 520 pitch, 120 links, ZVM-X G&G. The DID racing-chain with 520 pitch saves 0.5 kg weight compared to the stock 525 chain. It is two links longer than OEM chain to compensate for a larger rear sprocket if needed. Weight: 1.98 kg. Note: For example an OEM gear ratio of 17/44 would require a chain length of 118 links.