Triumph 750 Triplex Endless Primary Chain 84 Links 60-4125 1973-82 T140 TR7 TSS Seat The Lucas 31281B switch appears

The Lucas 31281B switch appears to be fitted to many early Matchless

Fits Triumph 500 Unit Twins (Daytona

Later models from 1969-On have a different thread pitch and are not compatible

*Now In Stock

Triumph 750 Triplex Endless Primary Chain 84 Links 60-4125 1973-82 T140 TR7 TSS Seat The Lucas 31281B switch appears*Now In Stock!* Top Quality Triumph 750 Unit Twins Triplex Primary Chain. If your looking for an Affordable Alternative Chain versus the Expensive Renold Brand, then this is Exactly the part you need! We use these Japanese Chains on our bikes here with excellent results! We are proud to offer this High Quality Chain to you! Primary Chain Features 84 Links & is "Endless" which means it does not have a Masterlink as O. E. M.! Fits all Triumph 750 Unit