Descrição
This motorcycle is Lot 220 - To be auctioned by Bonhams at The Spring Stafford Sale (The International Classic MotorCycle Show) on 26th & 27th April, please see the Bonhams website for full details.
Auction Timings:
Lots 1 - 147 are to be sold from 14:00 on Saturday 26th April 2025.
Lots 201 - 410 are to be sold from 11:00 on Sunday 27th April 2025.
Public Viewing:
Available 26th & 27th April 2025 from 09:00 until 17:00, at The Stafford County Showground (The International Classic MotorCycle Show).
Lot 220
1931 AJS 349cc Model SB6 Big Port
Registration no. FJ 1750
Frame no. SB 153207
Engine no. SB6/ 153207
Although it retained the 74x81mm bore and stroke dimensions of the 1920 Junior TT-winning prototype, the machine that brought AJS a remarkable Junior/ Senior double victory the following year had been extensively redesigned in the light of experience gained from racing. The production version, known latterly by the 'Big Port' soubriquet, made its debut in November 1922, offering near-racetrack performance for the road rider.
In September 1930, AJS's 1931 range was announced and for the first time the factory used 'Big Port' as an official model designation for one of its overhead-valve 350s. This was applied to the SB6, a three-speed lightweight variant offered alongside the similar size twin-port S6. The SB6's raison d'être was the favourable rate of taxation applied to motorcycles weighing less than 224lbs, though if the optional (and heavier) four-speed gearbox was specified the SB6 no longer qualified. Production of the SB6 continued at Plumstead after the Matchless takeover of December 1931, finally ceasing in 1934.
One of the last Wolverhampton-built AJS motorcycles, this machine has been restored, with some of the work done by the current vendor. Very nicely presented, it comes with various copy instructions manuals and a current V5C Registration Certificate. A video of the machine running may be viewed on the Bonhams Motorcycles' web site. Spare handlebars, a leather tool box, and a box of control levers and other small parts are included in the sale.
All lots are sold 'as is/ where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding. Visit the Bonhams Motorcycles website for all pertinent auction information.
