1979 Triumph BONNEVILLE SPECIAL

$8,995.00


New/Used
Used
Usage
14422 Miles
Availability
Brokerage
Location
Las Vegas, NV
Primary Color
BLACK
VIN
T140DGA22580
Stock #
GA22580
Title
Clean
Condition
Excellent
Year
1979
Manufacturer
Triumph
Model
BONNEVILLE SPECIAL

Overview

Dealer Insights

NATIONWIDE SHIPPING AVAILABLE

RARE T140E AMERICA SPECIAL WITH 14,422 ORIGINAL MILES. THIS IS A FACTORY-ORIGINAL, UNRESTORED SURVIVOR, AMAZING ORIGINAL CONDITION.

The Triumph Bonneville T140 is a standard motorcycle with a 750 cc (46 cu in) capacity engine that was designed and built by Triumph Engineering at Meriden near Coventry.

The T140 was the second generation in the Bonneville series developed from the earlier 650 cc (40 cu in) T120 Bonneville and was produced by Triumph in a number of versions, including limited editions, from 1973 until 1983 when the company was declared bankrupt.

The 650 cc capacity production T120 Bonneville was replaced in the early 1970s by the T140 Bonneville, the same basic machine but with a 750 cc engine. Refined from the later 'oil in frame' version of the T120, the first few T140s, designated T140V, featured a larger-capacity engine of 724 cc, a five-speed gearbox and indicators, but still retaining drum brakes and kick-start. Shortly after, the engine was further bored out to 744 cc and front disc brakes were fitted (using single discs until 1982). While originally intended for 'export only' the 750 Bonneville twin, caused so much interest among visitors to the 1973 motorcycle shows, that Triumph decided to put the bike on the home market at the price of 679 uk pounds. In 1975, along with engine modifications, the gearchange lever was moved from right to left to comply with new regulations mandated for the American market and a rear disc brake fitted. Several T140 models followed featuring various modifications and refinements including electric starting from 1980 until production ceased with the closure of the Meriden works in 1983.

Launched in 1978, the letter 'E' stood for emissions compliant. This model featured a new cylinder head, redesigned Amal carburetors to meet emission regulations and shortly after production started, Lucas electronic ignition. Most 'E' models had many design improvements including new Lucas switchgear, new side panel design and passenger grabrails that incorporated a small parcel rack.

T140E Bonneville:

5-speed 750 Bonneville Special

Air-cooled OHV vertical twin

744cc / 45.0 ci

76mm X 82mm / 2.99" X 3.23"

7.9:1

2- Amal Concentrics MkII, 30mm

Battery & coil, Lucas

49 bhp @ 6200 rpm

3/8" triplex X 84 links

Engine 29T X Clutch 58T

Multi-plate, wet

5-speed constant-mesh, left-foot shift

Gearbox 19T X Rear 47T

All-welded, oil-bearing large-tube backbone

Telescopic fork, hydraulic damping 2-way

Swing arm, 2 Girling dampers

10" disk, 2-piston hydraulic caliper

10" disk, 2-piston hydraulic caliper

3.25" X 19" Dunlop, ribbed

4.00" X 18" Dunlop, universal

3 Imp gal (US) / 4 Imp gal (UK & export)

54.5" / 140.3 cm

32.5" / 77.5 cm

5" / 12.7 cm

395 lbs/ 180 kg