Here you have one BSA steering stem top nut sometimes referred to as adjuster sleeve cap, produced as a direct replacement for the original but made from solid stainless steel, this nut is located on the top fork yoke.


Part number: 40-5018


This nut was fitted to a large number of BSA and Triumphs including:

BSA: B25 (1967-1970), B40 (1961-1969), B44 (1968-70), C15 (1959-67), D7/D10 (1958-67) & D14 (1968-71)

Triumph: TR25W (1967-70)

This cap may fit other models but please check your part numbers.


This item is made using CNC manufacturing in England by CPC Engineering with high-quality stainless steel.

40-5018 - Steering stem nut adjuster sleeve cap

  • £24.00

  • Ex Tax: £20.00

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