350cc and 500cc Single Cylinder
Spring Frame and Rigid Models
350 Model 16M Rigid Frame (Touring)
350 Model 16MS Spring Frame (Touring)
350 Model 16MC Rigid Frame (Competition)
350 Model 16MCS Spring Frame (Competition)
Big End Bearing Metal backed bronce bushCon Rod Number BSA 40-48 BSA C15 1958-63 BSA C15S 1959-60 to engine No. C15S 2112 BSA C15T 1959-61 to engine No. C15T 1320
Alpha NOS
Length of pin: 56.5 mm Outer ring: 38.2 mm Width of outer ring: 3/4"-19 mmcrank pin 15/16" 23,8 mmPlease look at all pictures