Replace your worn and stretched primary chain today using our quality replacement chains we have to offer today. We stock 2 chains.. Renold (England OEM) along with an affordable Japanese chain manufactured by KCM.

Both triplex primary chains features 80 links (endless). Fits all BSA A50, A65 & A70 Unit Twins (Lightning, Thunderbolt, Royal Star, Firebird, Hornet, Cyclone, Spitfire, Etc) from 1962-1972. Please refer to your parts catalog for proper fitment.

Please use the drop down menu to select which primary brand chain you desire – chains are sold each

**Features**

• Made in England / Japan
• OEM part number is 19-8639 & 68-0212
• Free shipping in the USA