BSA Piston Ring Sets - Choose Brand / Size / Application Size - Application - Brand - Origin:+.040 - (BSA A65) - Hepolite (UK) Fits Triumph T140 OIF models

Fits Triumph T140 OIF models from 1973-1978

M Part number is 57-4889

then this is exactly what you need

60-7217 or 19-1079

and Sedona

BSA Piston Ring Sets - Choose Brand / Size / Application Size - Application - Brand - Origin:+.040 - (BSA A65) - Hepolite (UK) Fits Triumph T140 OIF modelsWe are discontinuing Hastings & Grant rings, all Hasting and Grant rings are half priced while supplies last. We are introducing "Hepolite" rings as the replacement Time to rebuild that top end on your trusty BSA? Consider using our quality Hastings, Grant, Hepolite and Taiwan piston rings to complete your top end rebuild. Hastings, Hepolite, and Grant rings are one of the best quality items that you can install in your vintage BSA Hasting rings are