BSA Pre-Unit Singles "Big End" Assembly (1) - B31 / B33 / M20 / M21 / Etc (PRE - 1959) Reprint Fits BSA A50 & A65

Fits BSA A50 & A65 models with the 8" Conical Steel Hub and WM2x19" rim (Lightning

M Part number is 00-0118

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Guides are suited for BSA A50 / A65 twins (Lightning

BSA Pre-Unit Singles "Big End" Assembly (1) - B31 / B33 / M20 / M21 / Etc (PRE - 1959) Reprint Fits BSA A50 & A65Worn big end? Bottom end making a "knocking sound"? Chances are your big end is in need of replacement! Replace your big end with our new high quality English made complete big end assembly's. Comes included with pin, rollers, race, nuts, etc. threads are 3 4" OD Works with connecting rod part #'s: 66 483, 65 1614, 66 481. Fits all BSA pre unit singles (B31, B32, B33, M20, M21, M22, etc) from approx 1937 1958. Check your parts book to ensure the best