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  1. #1
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    downtube shifter boss?

    I just picked up a 1997 Terry Classic. The bike originally came w/ brifters but I removed them when I spotted what I thought was a downtube shifter boss. Where the bosses are, the bike had cable stops that screwed into the bosses on the downtube. I removed the cable stops and thought I found square shifter bosses on the downtube. recently got a pair of downtube shifters (square boss) but they don't seem to fit the bosses. Could there be more than one kind of square boss? or are these bosses just to hold the cable stops? thanks!
    1997 Terry Classic

  2. #2
    Old fart JohnDThompson's Avatar
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    Pictures would help. And details about what brand of shifter you're trying to install.

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    here is a pic of the shifter boss
    Attached Images Attached Images
    1997 Terry Classic

  4. #4
    AEO
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    looks like it should fit DT shifters...

    do you have some measuring calipers?
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
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  5. #5
    GO BIG RED norwood's Avatar
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    Those look like normal, typical shifter bosses. The threads need to be cleaned up. What kind of DT shifters are you trying to mount? Shifters off of a clamp-on band are sometimes different.
    1996 Bianchi Veloce
    1993 Bridgestone MB-3
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    I got the shifters recently in a trade w/ another BF forum member. They are old Suntour shifters, nothing fancy except the part that fits on the boss is kind of weird w/ sort of pointy things in the corners and also the interior washer than fits over the boss is very narrow so doesn't easy go over the rectangular part of the boss.
    1997 Terry Classic

  7. #7
    GO BIG RED norwood's Avatar
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    I'd have to say the issue is with the shifters and not the frame boss.
    1996 Bianchi Veloce
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    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by erbfarm View Post
    I got the shifters recently in a trade w/ another BF forum member. They are old Suntour shifters, nothing fancy except the part that fits on the boss is kind of weird w/ sort of pointy things in the corners and also the interior washer than fits over the boss is very narrow so doesn't easy go over the rectangular part of the boss.
    Again, pictures would help.

  9. #9
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    Sadly, the shifter bosses and levers aren't any sort of standard size. From what I recall, which of course could be wrong, there isn't a lot of inter-manufacturer compatibility to be had. With pics and measurements hopefully we can give you an answer to your problem.

  10. #10
    GO BIG RED norwood's Avatar
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    Quote Originally Posted by stausty View Post
    Sadly, the shifter bosses and levers aren't any sort of standard size. From what I recall, which of course could be wrong, there isn't a lot of inter-manufacturer compatibility to be had. With pics and measurements hopefully we can give you an answer to your problem.
    Generally, DT shifter bosses are pretty much standard. There some bosses on large tube aluminum frames and as I said some clamp-on shifters that may differ and also there is a top-mount style. The steel frame type boss is typically a generic braze-on that frame makers buy and use.
    1996 Bianchi Veloce
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  11. #11
    GO BIG RED norwood's Avatar
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    From the OP description and without pics to go by, the shifters sound like shifters removed from a clamp-on band. Are they an old early Campagnolo style or are they a somewhat newer style?
    1996 Bianchi Veloce
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