Lucas Type Auto Advance Unit Springs (2) - 54415642

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  • Regular price $ 11.95
  • 5 available


New Lucas Type Auto Advance Spring Set. It is crucial that your auto advance springs are in good working order. In detail, if your springs become worn and loose tension, it will cause erratic idle especially when the RPM's are decreasing. This new auto advance spring set has the right tension which will allow your motorcycle to rev smoothly throughout the RPM range and smoothly at idle. Works with most Triumph, BSA, & Norton singles, twins and triples from the 1960's through the 1970's that used an auto advance assembly in the timing cover. 


*****Please note that this spring set will not work with models that have magneto's or distributors.****



•Made in Taiwan
•O.E.M Part number is 54415642, 99-0757, 54417992 or 54412229