I have recently purchased a 1978 Team Raleigh 753. The BB shell has the following numbers:
63RG122QB SB4312
The Retro Raleigh site indicates that "SB" means the frame was built at the Ilkeston facility but nothing else. Can anyone help identify what the 4312 means if anything? Also, what does the 63 number mean?
Thanks
Kevin "numerically challenged" MacAfee St. Paul, MN