Sorry for the first message. BSA made some excellent lightweight parts. Very exspensive in there day, much more than Chater Lea. The items I can remember are BB, headsets, chainsets, pedals. hubs, brakes. extensions a track underslung and a twin bolt for easy handlebar fitting,derailleur and hub gears.I always believed that they manufactured thier own hub gears, from about 1936 they sold a wonderful 2speed fixed free hub gear now a very rare gear. If you can get hold of a copy of F.J.Camm's Cyclists Handbook ther is an illustration and description of this gear.They also made most of Constictors pedals and hubs, although these were marked Constrictor. All the top track stars used there stuff up and till the early 50's.
Be lucky Mick Butler Huntingdon UK
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