
LOT 443
1979 Triumph 744cc T140E Bonneville (see text) Registration no. GVX 532T Frame no. PA15215 Engine no. PA15215
Sold for £5,290 inc. premium
Lot 443
1979 Triumph 744cc T140E Bonneville (see text)Registration no. GVX 532T Frame no. PA15215 Engine no. PA15215
The Autumn Stafford Sale: The Classic Motorcycle Mechanics Show|20 October 2019, 11:00 BST|Stafford, Staffordshire County Showground
1979 Triumph 744cc T140E Bonneville (see text)
Registration no. GVX 532T
Frame no. PA15215
Engine no. PA15215
Registration no. GVX 532T
Frame no. PA15215
Engine no. PA15215
The final phase of development of Triumph's vertical twin commenced in 1972 with the first appearance of the new 750cc version of the Bonneville. Other improvements included a new ten-stud cylinder head, triplex primary chain, stronger transmission, and a disc front brake, while a five-speed gearbox, introduced on the preceding 650 Bonneville, was standard equipment on the 750.
Nevertheless, owners of the more highly tuned Meriden models always suffered from the powerful twin's vibration. A known problem, the issue was addressed by Triumph in the eighties with a radical redesign, which proved quite costly. One avenue taken was the construction of pre-production 'Anti-Vibration' (AV) models in the hope of a realistic solution and a re-capture of the market. The vendor advises this particular machine is fitted with 'AV' engine mounts and whilst not proven, could well be an early pre-production 'AV' model, see 'The Taming of The Vibes', Real Classic Magazine, December 2012 featuring this particular machine (prior to being repainted by its previous owner).
Following the Meriden debacle, Triumph continued with the Bonneville as its main model, ringing the changes to produce a succession of special and celebratory editions.
This late Meriden Bonneville benefits from extensive recent refurbishment, boasting a new wiring harness, ignition switch, solid-state regulator/rectifier, indicators, rear carrier, and a gel battery, while the fuel tank and side panels have been re-sprayed. A total of 15,816 miles is currently displayed on the odometer and the Bonnie is described by the private vendor as in generally good condition. Used regularly and run recently, the machine is offered with a V5C Registration Certificate, current MoT and its original factory dispatch card.
Nevertheless, owners of the more highly tuned Meriden models always suffered from the powerful twin's vibration. A known problem, the issue was addressed by Triumph in the eighties with a radical redesign, which proved quite costly. One avenue taken was the construction of pre-production 'Anti-Vibration' (AV) models in the hope of a realistic solution and a re-capture of the market. The vendor advises this particular machine is fitted with 'AV' engine mounts and whilst not proven, could well be an early pre-production 'AV' model, see 'The Taming of The Vibes', Real Classic Magazine, December 2012 featuring this particular machine (prior to being repainted by its previous owner).
Following the Meriden debacle, Triumph continued with the Bonneville as its main model, ringing the changes to produce a succession of special and celebratory editions.
This late Meriden Bonneville benefits from extensive recent refurbishment, boasting a new wiring harness, ignition switch, solid-state regulator/rectifier, indicators, rear carrier, and a gel battery, while the fuel tank and side panels have been re-sprayed. A total of 15,816 miles is currently displayed on the odometer and the Bonnie is described by the private vendor as in generally good condition. Used regularly and run recently, the machine is offered with a V5C Registration Certificate, current MoT and its original factory dispatch card.
Footnotes
As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.
Saleroom notices
The machine is offered with a photocopy dispatch card, as provided by the National Motorcycle Museum.




Additional information
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