1977 Triumph Bonneville


  • Year of manufacture 
  • Mileage 
    3 904 mi / 6 283 km
  • Car type 
  • Lot number 
  • Drive 
  • Condition 
  • Location
  • Exterior colour 


"The early 650cc T120 Bonneville, often known as the 'duplex frame' model, was replaced in the early 1970s by the T140 Bonneville, it was the same basic machine but with a 750cc engine. Refined from the later 'oil in frame' version of the T120, the first few T140s, designated T140V, featured a larger capacity engine of 724cc, a five speed gearbox option and indicators, but still retained the drum brakes and kick-start. Shortly after, the engine was further bored out to 744cc and front disc brakes were fitted using single discs until 1982. In 1975, along with engine modifications, the gearchange lever was moved from right to left to comply with a new regulations mandated for the American market, and a rear disc brake were fitted. From 1980 several T140 models followed featuring various modifications and refinements, including electric starting, until production ceased with the closure of the Meriden works in 1983. The standard 1977 Triumph Bonneville T140 then remained relatively unchanged from prior years. The only real changes were made to the Jubilee and they were purely cosmetic. The outer engine covers (primary, timing & gearbox covers) were chromed. A special silver over blue with red pinstripe paint scheme was specific to the 1977 Silver Jubilee. The seat was even finish in Union flag colours, with its blue vinyl and red piping.
This charming matching numbers Bonneville Silver Jubilee edition is one of the limited U.K run of 1000 bikes produced in 1977. The bike presents well and is submitted to auction with a V5C registration certificate. We have been informed by the vendor that the bike runs smoothly. This Meriden beauty is a rare opportunity to acquire a delightful machine in good order.