BSA  B25SS,B25T,B50SS,B50T AND TRIUMPH T25SS,T25T SIDESTAND SPRING FOR  OIL IN FRAME 250/500 SINGLES  ALSO TR5T TRIUMPH TWINS 1973-1974 MODELS  MEASURES 5 -3/16 INCHES - 133MM BETWEN THE INSIDE ENDS FULLY EXTENDED BSA PART NUMBER 68-4708 .  ANY QUESTIONS PLEASE EMAIL.