BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | STREET CHAINS & DRIVE BELTS 1076 DESCRIPTION CC RECOMMENDATION AVERAGE TENSILE STRENGTH 420 RXP 50 to 80cc 4,409 lbs. 428 RXP 80 to 125cc 5,071 lbs. 520 RXP Pro-MX 125 to 350cc 7,937 lbs. DESCRIPTION CC RECOMMENDATION AVERAGE TENSILE STRENGTH 520 HPO 350 to 450cc 7,496 lbs. 520 FB 450cc and above 7,937 lbs. MOOSE CHAIN SPECIFICATIONS 420 CONNECTING LINK DESCRIPTION PART # 420 RXP PRO-MX Repl. clip connecting link M576-00-01 420 RXP PRO-MX NO. OF LINKS PART # 90 M576-00-90 96 M576-00-96 100 M576-00-100 110 M576-00-110 NO. OF LINKS PART # 114 M576-00-114 116 M576-00-116 120 M576-00-120 130 M576-00-130 428 CONNECTING LINK DESCRIPTION PART # 428 RXP PRO-MX Repl. clip connecting link M575-00-01 428 RXP PRO-MX NO. OF LINKS PART # 90 M575-00-90 96 M575-00-96 100 M575-00-100 110 M575-00-110 114 M575-00-114 NO. OF LINKS PART # 116 M575-00-116 120 M575-00-120 124 1222-0714 130 M575-00-130 420 RXP PRO-MX CHAIN •Non-O-ring chain •Designed specifically for mini-racing machines •High application greased chain •High-tensile strength nickel-plated inner link plates •High-tensile rust-resistant gold-plated side plates 428 RXP PRO-MX CHAIN •Non-O-ring chain • Designed specifically for high-powered, mini-racing machines •High application greased chain •High-tensile strength nickel-plated inner link plates •High-tensile rust-resistant gold-plated side plates •Solid rollers •Clip-type connecting link included •Recommended for applications between 50 to 80cc •Replacement connecting link available •Solid rollers •Clip-type connecting link included •Recommended for applications between 80 to 125cc •Replacement connecting link available
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