Featured 1971 T100c Refresh

Discussion in 'Vintage Classics' started by Sundance, Aug 6, 2022.

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  1. Sundance

    Sundance Well-Known Member
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    1971 T100C Refresh

    I came upon this 1971 T100C in a serendipitous way. With a little coaxing, and the permission of the owner, I got it started and took it for a brief spin. It had been sitting for awhile in his outbuilding. It followed me home (on a trailer) so it is now mine, at least for a bit.

    There is an interesting back story to this bike that I am still discovering, but includes at least an association with the Pagans MC in the early 70’s.

    It seems to be original, except for a Boyer ignition (still have the original parts), the exhaust system (I thought these had high pipes), it is missing turn signals and side reflectors (if it had them?), and I’m not sure there is anything else different from original. With a bit of tinkering it started right up, shifted properly and idled mildly. Compared to my 750, I can see why these were/are desirable bikes, enough power and easy to ride.

    Engine and frame numbers match: XE 06741 T100C

    I’d appreciate any information as you take a look at the photos about what seems to be original versus other on the bike. I’ll get some better photos up once I give it a wash and decide what to do with it. I think the tires are original too. Extremely low mileage. Thanks for any interest.

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  2. speedrattle

    speedrattle Senior Member

    Feb 19, 2021
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    #2 speedrattle, Aug 6, 2022
    Last edited: Aug 6, 2022
    lol

    and so it begins.

    BSAs and nortons will start showing up in your life too.

    good looking bike. im pretty sure all of them had turn signals 71-on. certainly your handlebar controls have the paddle for them. one is hi/lo headlamp, the other is turn. they mounted at the headlamp pivot and in the side holes in your tail assembly. two yellow reflectors went in the side holes of the grabrail.

    you have another monobloc. your machine would have had a concentric, but the motor does not care.

    the shorty mufflers are period 1970s. inexpensive alternatives when the stock ones rotted away.
     
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  3. Sundance

    Sundance Well-Known Member
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    Speed, I have already been looking at Nortons, but this came by . . .

    So as a T100C would this originally had a concentric? Also, on the mufflers it seems the original ones would have been the high pipes on the left side? Do you know? Thanks.
     
  4. speedrattle

    speedrattle Senior Member

    Feb 19, 2021
    735
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    1966 . . . or so . . . was the last year for the monoblocs. the concentrics were used exclusively from 67 on, i think, until the amal mk2s around . . . 1979. . . ?

    the concentric is not a better carb, they say.

    i dunno about the pipes. id have to look at the parts book, but certainly the T100Cs on the net appear either way.
     
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  5. Adie P

    Adie P Crème de la Crème

    Jul 7, 2018
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    A few nice pictures here that will give you a good overview of how an original would (probably) have looked...........

    https://www.mecum.com/lots/LV0118-315578/1971-triumph-t100c/

    Yours has aftermarket rocker box caps - the Amal and the pipes have already been mentioned - but the rest (aside from those major differences) looks very good. Nice bike. :):)
     
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  6. Sundance

    Sundance Well-Known Member
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    Well, that Mecum auction was a pretty bike. Thanks for this link! The one I've got can stand to get dirty and a few scratches here and there. I appreciate your keen eye on the rocker box caps. This 500 is an easy handling bike, compared with my retro Bonneville. Thanks for the comments Adie!
     
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  7. Adie P

    Adie P Crème de la Crème

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    You are very welcome, Sundance. You have a really nice project bike and one that could go any number of ways to becoming a satisfying and personal favourite. It won't be the easiest of journeys as original parts - especially for the 500 range - are very hard to find but repro and aftermarket have fairly good availability.

    I hope that, whatever you do with the bike, you keep us all updated on progress. I'm sure everyone here wishes you luck with it.

    p.s. definitely KEEP the rocker caps - they're 'period typical' and, dare I say it, nicer than the original, plain caps!
     
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  8. Sundance

    Sundance Well-Known Member
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    Adie P, thanks again for the comments. I'll keep the rocker caps, they are similar to what I have on my Bonneville. Since this bike runs nicely as is, I'll take my time with any changes as I'mm in no rush and I'll post more photos.
     
  9. Sundance

    Sundance Well-Known Member
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    Thanks for the comments! Here are a few more photos.

    IMG_3589.jpeg

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  10. darkman

    darkman Crème de la Crème

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    Amazing find :) i would find some original high pipes and keep it as the chance of finding another clean original one is slim. some pics of Su's 71 C.

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  11. Sundance

    Sundance Well-Known Member
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  12. darkman

    darkman Crème de la Crème

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    But yours is original and with a little detailing would be amazing :)
     
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  13. Adie P

    Adie P Crème de la Crème

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    Ah, Sundance! You don't know the half of it ......

    @darkman takes a pile - often a very small pile - of rusted, dented, beaten and broken parts and magically creates a work of engineering art that any former Triumph Meriden employee would be proud to see and touch! His restorations are pinpoint accurate and would make the Mecum bike owner cringe with embarrasment and jealousy.

    What's more, he then rides them ....... hard!

    Some people, huh? :rolleyes:
     
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  14. darkman

    darkman Crème de la Crème

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  15. Sundance

    Sundance Well-Known Member
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    OK, ok. So this is a darkman restoration? Well, amazing and gorgeous again. I am a bit new to this "game" so forgive my ignorance. So, then, the bike I have - assuming it is mostly original, and in pretty good shape, ridable, etc., is a good thing! It seems then it'd be most favorable to not disturb it too much as long as it runs nicely and is safe. Then, perhaps, find a few pieces that might bring it into a more original formulation. On that line, I was looking into the parts book on this and it seems that the type of air filter I have on this one, is round, and is not an import type (to the USA that is). Similarly my bike has an 18 inch rear wheel and 19 inch front. The Haynes owner's workshop manual shows the T100R has 2 18 inch wheels, the T100C (East Coast models only) has 2 19 inch wheels, the T100S has 2 18 inch wheels. So it is a bit confusing. Any comments on the wheels and air filters - thanks!
     
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  16. darkman

    darkman Crème de la Crème

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    #16 darkman, Aug 10, 2022
    Last edited: Aug 10, 2022
    18 rear 19 front wheels standard for your bike and round chrome filter as well. Wheel rims if original should have Dunlop, Made in England, WM2 19" MB11 and WM3 18" MB10 :)
     
  17. Sundance

    Sundance Well-Known Member
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    that's what I've got then - thanks!
     
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  18. Mark9

    Mark9 Noble Member

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    Very nice, I’ve picked up an earlier one that needs finishing, I’m told they ride really sweet being a smaller capacity, taking them out to bigger capacity’s did nothing for smoothness, haven’t been able to touch mine since getting it cos we’re having house alterations done and I can’t get to the garage , anyway looks like you got a nice machine that’s almost there
     
  19. Sundance

    Sundance Well-Known Member
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    Yes, I’ve got an old Bonneville (67 engine, 69 frame) that I rebuilt into a scrambler type machine with a 750 big bore kit. It is quite powerful and “beastly,” while this 500 is strong, smoother and more fun to ride. Hope you get to your garage soon!
     
  20. Sandi T

    Sandi T It's ride o'clock somewhere!
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    @Sundance, what a great bike and project. You'll definitely get support from some of the members on this forum.

    So...you mentioned some connection with this bike to the Pagans MC but no further info on that. I'm curious....what's the deal?? Good luck with the build/restoration. Keep us posted please!
     
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