Our super premium roller chain is manufactured from premium quality materials with through hardened pins. On average our super premium roller chain is 28% strong than standard roller chain. Due to the strength of our SP roller chain, we only offer pressed fit connecting links to maintain the strength. These chains also use wider waist links plates and quad staked pins to help prevent stress fractures over time. Offsets links are not available and should not be used with our super premium chain. The offset links will create a weak link and affect the overall strength.