Triple SSS Chains and JT Sprocket Kits A winning combination of two proven products - Triple S chain and JT Sprockets. When a chain is replaced, it is recommended that the old worn sprockets are also renewed to avoid damaging the new chain. [ back ] Triple S chains, as used and developed by Team Yamaha UK's Superbike & MX teams. Chain types: Standard, Heavy Duty, O-Ring and X-Ring chains Complete sets: front & rear sprockets plus recommended replacement chain kits. - Price shown for complete sets inc VAT.