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#841567 03/01/21 9:13 pm
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A set of Triumph 650 cases has appeared, stamped "T120TT DU 75311."

BEWARE of these cases.

The stamps are not original factory stamps, but even worse, "DU 75311" falls well into the 1968 model year, and NO "TT" bikes were built after 1967.

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I should have added that these cases are on EBAY, U.S.A., under number 133675908327.

They appear to have been un-numbered replacement cases that someone stamped to pass off as rare and expensive "T120TT" cases.

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Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


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Being pretty careful with the description. Wonder how big a carp they think they will reel in with that pic of the numbers.


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On my 68 (DU81XXX) which I an very confident hasn't been altered, the engine number is on a raised block but doesn't have the Triumph stamps across it. I believe the stamps came in 69. If the cases are genuine and haven't had a file and restamp job, that would put the cases as 67 or early 68 as they have the oil feed to exhaust cam followers


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I can't help thinking that anyone who is willing to pay a premium for a set of TT cases that hasn't done enough research to know these are fake kind of deserves what they get.

The first giveaway is that the T120 should be a single stamp, I wouldn't have got as far as reading the actual engine number.


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That's Greg, and he does say it's a non stock number, so any hopefuls are warned

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Originally Posted by TinkererToo
That's Greg, and he does say it's a non stock number, so any hopefuls are warned
Exactly, The ad description has not been edited? It's an honest ad, buyer warned. I have bought from this seller many times.


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Originally Posted by Hillbilly bike
Originally Posted by TinkererToo
That's Greg, and he does say it's a non stock number, so any hopefuls are warned
Exactly, The ad description has not been edited? It's an honest ad, buyer warned. I have bought from this seller many times.

How can it be an honest ad if the item itself is dishonest?


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Originally Posted by Tigernuts
How can it be an honest ad if the item itself is dishonest?

What should the seller be doing differently, in your opinion?


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Originally Posted by triton thrasher
Originally Posted by Tigernuts
How can it be an honest ad if the item itself is dishonest?

What should the seller be doing differently, in your opinion?
Dishonest cases need to be flogged and put in prison....Set of cases would be just fine for anything but a restoration..


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I dunno! If the seller knows the cases have a false number, maybe saying so, and also pointing out that they are otherwise a very good, useful set of cases would do the trick? I can;t see the seller's description (Ebay link won;t work). But I took it from the previous comments that they were being advertised at face value without any information about the genuineness or otherwise of the engine number.


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Originally Posted by Tigernuts
I dunno! If the seller knows the cases have a false number, maybe saying so, and also pointing out that they are otherwise a very good, useful set of cases would do the trick? I can;t see the seller's description (Ebay link won;t work). But I took it from the previous comments that they were being advertised at face value without any information about the genuineness or otherwise of the engine number.

This is the title of the listing:
Quote
Engine Motor Cases Crankcases Triumph 650 Bonneville Tiger Trophy T120R 633

This is the description:
Quote
Description

Non stock number

Includes camshafts and tach drive

Timing side casting number E4534

Primary side is illegible

Last edited by triton thrasher; 03/04/21 11:52 am.

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Thanks for going to all that trouble. It really isn't all that important though, just something that's been sold by now I expect.


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Is pretty good to have one as spares if you blown the cases (as happened to me years ago) then remove that number and stamp your number.

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They sold for $152.50


1965 TR6SR (Project)
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1967 TR6C (chopped)
1967 TR6C (box stock)
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I can't attest to what the law does in other states, or other countries but where I live, altering, removing or re-stamping an item non-factory serial numbers makes the item subject to confiscation by the police, and the man in possession of the item is liable for criminal prosecution.

I don't have the nerve to attempt it.

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"They sold for $152.50"

That's a very low price for a pair of cases and cams, assuming there's no hidden horrors lurking.

A specials builder wouldn't give a monkeys about the odd number, in the UK anyway.

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It's a funny thing, but until about twenty or so years ago, I wouldn't have thought to look to see if the engine and frame numbers matched, or what the numbers were eg many years ago I wrecked a T100T bottom end by breaking the crank and replaced the bottom end with what I could get at the time which was from a 3TA. The bloke who subsequently bought it from me was mainly concerned with the type of main bearings it now had, rather than the engine number. Methinks it's the filthy lucre that's now a major consideration.


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