BSA Pre-Unit Twins Small Journal Con Rod Bearing Shell Set 67-0320 +.010 500 650 7/8" M Part number is 42-4340

M Part number is 42-4340

Spitfire & Firebird Scrambler) from 1962-1972

M Part number is 37-3880

Etc) from 1966-1968

BSA Pre-Unit Twins Small Journal Con Rod Bearing Shell Set 67-0320 +.010 500 650 7/8" M Part number is 42-4340*Back In Stock!* Top Quality BSA Pre Unit 500 & 650 Twins "Small Journal" +. 010 Rod Bearing Con Rod Shell Set. This is as good as it gets! Although there are other less expensive rod bearings being sold here on the internet, they are not of the same quality! Your British motorcycle is an investment, so do it right the first time using high quality parts! Fits all BSA Pre Unit 500 & 650 Twins (Goldenflash, A10, Shooting Star, A7, Etc) from 1947 1955