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Lot 308: 1958 Triumph 350cc Twenty-One

Collectors' Motorcycles, Bonhams (16 October 2005)

Triumph introduced the 350cc ‘21’- commemorating the anniversary of the first Speed Twin - in late 1957 for the following season. Partly as a response to the then trend for machine enclosure, scooter-style, the rear of the machine was designed to feature enclosure with the famous ‘Bath-tub’, which housed the electrics and the toolkit. Not universally popular, the ‘21’ was, for some time, the only 350 in Triumph’s range and sold well. This early machine has had the ‘bath-tub’ removed and has been in store, incomplete, for some time. It has a V5 for its Shropshire number.

Lot Details
Auction Collectors' Motorcycles
Bonhams, Classic & Motorcycle Mechanics Show, Stafford
TypeMotorcycle
Lot Number308
Estimate£300-£400
Outcome SOLD
Hammer Price£380
Hammer Price (inc premium)£437
Year1958
Condition rating
Registration number
Mileage-
Chassis number
Engine number
Engine capacity (cc)
Engine - cylinders
Number of doors