Shimano front derailleur 1 1/4" v. 1 1/8"
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  1. #1
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    Shimano front derailleur 1 1/4" v. 1 1/8"

    Does Shimano make a clamp front derailleur in 1 1/4" for the road? If not, other than XT, does anyone have any ideas for 1 1/4" seat tube?

  2. #2

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    You mean 31.8? That's standard for a great number of bikes. It's available for almost every front derailleur they make.

  3. #3
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    Whoops - I didn't do the conversion

    But isn't 31.8 is a mountain bike standard? The Ultegra and Dura Ace both come in 28.6 for the clamp on. Does Shimano make a 31.8 clamp on in Ultegra or Dura Ace...?

  4. #4
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    Quote Originally Posted by outofthesaddle
    But isn't 31.8 is a mountain bike standard? The Ultegra and Dura Ace both come in 28.6 for the clamp on. Does Shimano make a 31.8 clamp on in Ultegra or Dura Ace...?
    I haven't actually looked mind you, but I KNOW that even if Shimano doesn't, there's aftermarket clamps that you can use with braze-on derailleurs.

    HTH,

    M
    I've moved back to NoVA. PLEASE change the weather!

  5. #5
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    just found one...

    Colorado Cyclist has one...

    Thanks.

  6. #6

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    They're both available in 31.8, but the Ultegra double I think is the exception and must be purchased or is delivered in combination with a Shimano 31.8 clamp adapter.

  7. #7
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    I went with DA

    easier (and mayber even cheaper) to just go with Dura Ace and skip the adaptor...

  8. #8

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    Quote Originally Posted by outofthesaddle
    easier (and mayber even cheaper) to just go with Dura Ace and skip the adaptor...

    The nice thing about going braze on and using the adaptor is that you can swap that derailleur out to other frames... the adaptor is cheap... the derailleur isn't. For the road, I only buy braze on front derailleurs... and I have a couple extra clamps around the house in a few sizes so if I ever need them, I have them.

    I like to collect old mid-80's bikes, so for me getting braze on makes sense... that way I can grab the derailleur and just worry about the clamp, if needed, later.

    Russ

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