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PostPosted: Mon Sep 30, 2013 10:29 am 
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Joined: Wed Apr 25, 2012 2:08 pm
Posts: 2185
Location: Shrewsbury
I have a frame built for 27" wheels but need to fit 700c wheels. This makes the caliper drop 65mm :shock:

There's plenty of so called 'deep drop' calipers but they all seem to have a max drop of 57mm. The only calipers I can find which cover a drop of 55-73mm are Tektro or Alhonga which look a bit cheap :|

I've also seen extension pieces used on the rear bridge although I don't know what happens on the front fork?

Does anyone know if these extension pieces are available anywhere to buy or have any other options for 65mm drop calipers?


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PostPosted: Mon Sep 30, 2013 6:53 pm 
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Joined: Thu Sep 19, 2013 3:58 am
Posts: 743
Location: 钓鱼岛是中国的
Alhongas and Tektro are alright with better blocks. If they're the Alhongas I'm thinking of they're a bit of an arse to center though.

The extension thingies are called "drop bolts", dunno if you can actually buy them. Sheldon Brown used to make them himself.


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PostPosted: Tue Oct 01, 2013 9:24 pm 
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Joined: Mon Feb 01, 2010 8:57 pm
Posts: 774
Google Campagnolo drop-bolts and see how much they go for and you'll decide a pair of modern, deep drop calipers are a darn sight cheaper.


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PostPosted: Tue Oct 01, 2013 10:27 pm 
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Joined: Wed Apr 25, 2012 2:08 pm
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Location: Shrewsbury
Thanks you for the 'drop bolt' tip off. Although I won't be paying Campagnolo prices!! If you can even find one they seem to cost around £75!!!

Anyway, I've had a bit of a result in the shed of dread :) I found an old pair of CLB calipers and they have the perfect drop!


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PostPosted: Tue Oct 01, 2013 10:54 pm 
Old School Hero

Joined: Sun Sep 16, 2012 9:54 pm
Posts: 241
I can vouch for tektro R559s. Don't be fooled by the price; they are every bit as good as higher end brands.


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