1921 The engine was enlarged to 162cc to produce a lightweight motorcycle with a two speed gearbox in a duplex tubular frame, similar to the triangulated Cotton design.
1922 A three-speed version of the motorcycle was launched as they moved away from the dying scooter market.
1923 A larger range was available with models fitted with 247cc and 343cc Villiers, 195cc ohv Shaw and Blackburne four-strokes in various capacities, including a 696cc V-twin. During that year the company began offering machines with B and H (Bacher and Hellow) patented engines comprising single and V-twin designs, from 249cc to 998cc, all with detachable heads and some with water-cooling. These, however, made little impact on the established trade. At the end of that year the company moved to premises in South Croydon, Surrey, and an arrangement was made to build Wooler motorcycles.
1924 Public company formed Grigg (1924) Ltd  to take over and run the existing business; was the sole manufacturer of several motorcycles for which it had contracts including:
The George McKenzie - up to 50 per week
The Wooler - up to 50 per week
Metro-Tyler - up to 5 per week
Metro-Tyler Light car - up to 5 per week
The full range was continued for that year but the writing was on the wall for the company. They attempted to keep going by providing general machining facilities.
1925 By now the slump in the motorcycle market had taken hold and Grigg failed to survive.
Note: Griggs were popular with sidecar owners.
By 1925 the firm closed - like most of the score or more small makers who could not survive the mid-twenties slump. Students of vintage motorcycle design may see a likeness between the Grigg frame and that of the contemporary Cotton. Francis Willoughby Cotton had patented his distinctive design with straight tubes running from steering head to rear wheel spindle many years before. He had considered taking action against Grigg but the firm folded first.
Sources: Graces Guide; grigg_motorcycle_company.
Wed Oct 26 2011
George Edward Bacher, B & H engines, Griggs Engineering
B & H aero engines
OFFER OF HELP.
Would you like more information on B & H/Griggs engines, in particular the B & H aero engine used in the Avro 558 (1923)? If so, please ask.
Arthur W. J. G. Ord-Hume, Director & Senior Archivist: The Aviation Archive, Guildford, Surrey
England, Surrey, Guildford
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