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
BSA Parts Book 1954 B31/33
114 Pages
B31 350 OHV Rigid and spring frame
B32 350 cc OHV Competition Rigid Frame
B33 500 cc OHV Rigid and Spring Frame
B34 500 cc OHV Competition Rigid
B31 350 OHV Swing. Arm
B32 350 cc OHV Competition Swinging arm
B33 500 cc OHV Swinging Arm
B34 500 cc OHV Competition Swinging arm
Conrod Triumph Mod. H used Big end diameter: 32mm Small end diameter: 20.8mm Distance between centers: 200.1mm Width at Big End: 30.1mm Width at Small End: 34.9mm