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Restored Triumph Bonnevilles up for auction

1959 Triumph Bonnevilles
1959 Triumph Bonneville

Eight Triumph Bonnevilles professionally restored by a Canberra enthusiast are coming up for auction at Shannons Late Autumn sale in Sydney on May 20.

The Bonnevilles are among 18 classic motorcycles in the 55 lot vehicle and memorabilia auction.

Two standout Triumphs on offer are a 1959 first year Pre-Unit Bonneville T120 650cc pictured above (UPDATE: it fetched $44,000) and a 1970 Bonneville T120R with just 1004 miles on its odometer since its ground-up restoration ($20,000-$24,000).

1970 Triumph T120R Triumph Bonnevilles
1970 Triumph T120R

Both motorcycles are in their correct colours.

The 1959 ‘Bonnie’ is understood to be just the 102nd T120 model built early that year.

It has covered just 605 miles since its restoration. Shannon’s says the guiding range for bids is likely to be $45,000-$48,000.

The 1970 T120R is important to collectors as the last Bonneville model built with its oil tank under the seat before Triumph adopted an oil-in-frame system.

Triumph BonnevillesTriumph Bonnevilles

Other Triumph Bonnevilles being auctioned in similar fully-restored condition include examples from 1963, 1964, 1969 and 1970, with guiding ranges spanning $18,000-$25,000.

Another earlier Triumph motorcycle in the auction is an older-restored circa-1926 Model P 500cc solo offered as part of a deceased estate.

It is expected to sell in the $8000-$10,000 range.

An alternative for veteran bike enthusiasts is a rare circa-1910 single-cylinder Speedwell early Australian motorcycle.

1910 single-cylinder Speedwell - Triumph Bonnevilles
1910 single-cylinder Speedwell

It would be ideal for a collector or museum and is expected to bring $18,000-$22,000.

Both are being offered with no reserve.

Other interesting motorcycles in the auction include two restored Suzuki RM80 motocross motorcycles from 1978 and 1981.

Suzuki RM80 - Triumph Bonnevilles
Suzuki RM80

Both are offered with no reserve and each is expected to sell for $2,000-$3,000.

Also expected to create strong interest among Ducati enthusiasts is a one-owner 2002 Limited Edition 748R from the model’s final year of production.

2002 Limited Edition Ducati 748R- Triumph Bonnevilles
2002 Limited Edition Ducati 748R

It is believed to be one of only 10 delivered to Australia in red. The bike is expected to sell with no reserve for $14,000-$18,000.

Other motorcycles offered with no reserve include:

  • A very original ex-military BSA WM21 equipped with pannier bags and other period accessories that would make a great club bike ($8,000-$10,000); and
    BSA WM21 - Triumph Bonnevilles
    BSA WM21
  • A circa-1936 ACME Autocycle that hasn’t been ridden for many years, but is in complete and original condition ($1500-$2000).

To view all Shannons May 20 Sydney Late Autumn Auction lots, visit