1978 Triumph Bonneville T140E (Kries Estate Collection)

AUCTION STARTS SOON

Reserve price has not been met.

Starts At: January 10, 2026 10:00 am PST

Auction Starts In:

Ends At: January 17, 2026 12:00 am PST

Please Note: This bike is a part of the James Richard Kries Estate Collection. As it is part of an estate, we do not have any history for these bikes.

A bike whose name precedes itself, the Triumph Bonneville has a storied history in racing and vintage showmanship. This bike had a target market in mind, as described by Hagerty: “the Bonneville was a motorcycle for men…. every detail [was] carefully planned by men who ride — and ride hard.”

Debuting in 1978, the T140E was Triumph’s answer to rising regulations and policies from the United States Environmental Protection Agency to cut down on escaping fuel and vapors. The new model received a few changes during the refresh, including a larger 750cc engine, an improved cylinder head, and disc brakes front and rear. What’s more, Triumph gave the bike a left-side shifter and a negative-ground wiring harness – additions that made it far more practical for American riders.

This example is VIN: XXXXXXXX, Engine # T140E-CX05811.
[PLACEHOLDER: PHOTO OF VIN]

The odometer shows 4,196 miles.

Maintenance:
We do not have any maintenance history for this bike.

Modifications:
Hagon shocks.

Goodridge braided brake lines.

Boyer Bransden Micro Mark IV ignition.

Grimeca caliper, Norman Hyde caliper extension bracket.

Inside of the tank:
[PLACEHOLDER: PHOTO OF INSIDE TANK]

It is riding on Dunlop Roadmaster TT tires that have aged out.

The sale includes HOW MANY keys.
[PLACEHOLDER: PHOTO OF KEYS/EXTRAS]

Cosmetic Blemishes: please see the album in the “Photos” tab for all known cosmetic blemishes. Here is a selection:



The bike is missing the side cover and several other parts. The right hand controls have been disconnected.

Currently located in Miami, Florida, this Triumph is offered on a clean Florida title.

Have any Bonneville T140E stories or questions about this listing? Let us know in the “Comments” tab!

Additional Information

Location

N/A

Year

N/A

Make

N/A

Model

N/A

Mileage

4,196

VIN

N/A

Title

N/A

Title State/Country

N/A

Private Party/Dealership

Private Party

Additional Charges

No

Total Bids Placed:

Auction starting January 10, 2026 10:00 am PST
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Iconic Motorbike Auctions
1978 Triumph Bonneville T140E (Kries Estate Collection)
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