BSA Singles Valve Spring Kits by Kibblewhite - Choose Valve Spring Kit Type / Application Kit Type - Application:B50 / B50MX / TR5MX Spring Kit W/ Retainers - 1971-1973 If you where to piece

If you where to piece this kit out

Part replaces Triumph part 57-1157 and T1157

Suited for "heavy-weight" BSA singles and twins (B31

Bolt will replace Triumph part number 70-1562 & E1562

This filter is Fully Rebuildable

BSA Singles Valve Spring Kits by Kibblewhite - Choose Valve Spring Kit Type / Application Kit Type - Application:B50 / B50MX / TR5MX Spring Kit W/ Retainers - 1971-1973 If you where to pieceWe are now stocking a valve spring kit for BSA & Triumph late model unit singles by Kibblewhite. Each kit comes with springs, top retainers and bottom cups. We have kits for the B25, TR25, B44, B50 & TR5MX models You can use these high quality spring kits for racing or street use Made in the USA. Please refer to your parts catalog to ensure the best fitment Please use the drop down menu to select which valve spring set you desire sold in a kit as