Not a well known manufacturer, SOS (which stands for Super Onslow Special) first appeared in 1927 but never survived past 1939, most likely to the drain of WW2 on resources and materials. Most machines were powered by Villiers 2 stroke engines with a few by JAP 4 stroke singles, there was also a water cooled […]
1930 S.O.S Sales Catalogue. Read More »
This is a combined instruction manual and parts book for the 1933 Francis-Barnett 148cc Lapwing, 196cc Black Hawk, and 196cc Falcon. The first section is the instruction manual with running instructions and basic care. It deals with both flywheel magneto and coil ignition models, with the coil ignition models being fitted with Miller lighting units,
1933 Francis-Barnett Operating Instructions and Spare Parts List. Read More »
BSAs success in 2 stroke engines is a very small chapter in their overall history and really started in the late 1920s when they decided to manufacture their first 2 stroke motorcycle designated the A28. As a new model it was quite clear that the head designers must have been out to lunch that day
1929 BSA A29 Spare Parts List. Read More »
