68 front end size - Page 2 - Triumph Forum: Triumph Rat Motorcycle Forums

Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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post #11 of 30 (permalink) Old 11-28-2012, 10:10 AM
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I make the number as a 68 but lord knows what the frame is.

Take some pix of the barrels ands in particular if there is a maker's name cast in maybe on the bottom flange

If you're lucky, you have the original frame front end, and we could go from there.
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post #12 of 30 (permalink) Old 11-28-2012, 10:13 AM Thread Starter
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Here's a closer pic of the motor (I don't know why they're loading sideways)
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post #13 of 30 (permalink) Old 11-28-2012, 10:42 AM
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The engine number is T120r du76543
The engine number appears to be that of a 68 T120R but unless the engine has been built up Triumph did not produce a 750cc in 1968 to the best of my knowledge...as stated by myself and I believe 750cc engines appeared in the 70's...

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Last edited by 68T120R; 11-28-2012 at 07:23 PM.
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post #14 of 30 (permalink) Old 11-28-2012, 10:57 AM
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unless someone else sees something none of us are seeing, and based on what everyone else is saying, it sounds safest to assume you've got a 650 and that the seller wasn't entirely knowledgeable on the specifics. at least until you need engine parts, anyway. and in any event, not to distract too much from your original question...

can you post some pictures of the headstock and the triples? a frame number would be good, as would a shot straight down at the gauges and center for you handlebars, and maybe something looking up at the steering stops?

seems safe at this point not to take the seller's word for it that those are honda parts (hondas would probably have had gaiters, anyway, I think, instead of the much more triumph-looking rubber caps.)

in short, your question about what front ends will fit will be much more answerable after you can know what frame you have.
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post #15 of 30 (permalink) Old 11-28-2012, 12:14 PM
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The picture of the engine shows triangular front engine mounting plates. 1970 was the only model to have this feature.
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post #16 of 30 (permalink) Old 11-28-2012, 03:01 PM
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I think I see the hex plugs in the rocker boxes for feeler gauge to pass through. My '69 doesn't have that but my '71 does. Perhaps a different head?? Or, in keeping with Henry's note of the triangular front plates, did that feature come in '70??

Art.
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post #17 of 30 (permalink) Old 11-28-2012, 03:22 PM
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The inline fuel filter makes me think it has had a sensible owner at one time anyway. That could be a good sign.

Isn't that a 1970- onward breather pipe behind the clutch?

Last edited by Triton Thrasher; 11-28-2012 at 03:25 PM.
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post #18 of 30 (permalink) Old 11-28-2012, 03:47 PM
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do you have paperwork on this bike, and does it match the frame number?

someone here will know when they started stamping the engine number onto a raised bit with triumph logos stamped in as background.
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post #19 of 30 (permalink) Old 11-28-2012, 03:52 PM
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1969 model year at DU86965
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post #20 of 30 (permalink) Old 11-28-2012, 03:54 PM
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Quote:
Originally Posted by BirdoPrey View Post
I think I see the hex plugs in the rocker boxes for feeler gauge to pass through. My '69 doesn't have that but my '71 does. Perhaps a different head?? Or, in keeping with Henry's note of the triangular front plates, did that feature come in '70??

Art.
Art, 1970s had the same "X" caps as the '69s. No access from the side. Inlet manifolds are definitely post 1970. So far, I think we have a '68 engine, '70 frame, and an OIF head of indeterminate vintage. But what about the forks. A more detailed photo would help in the identification.

Last edited by henryanthony; 11-28-2012 at 04:56 PM.
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