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Old 02-02-12, 07:19 PM   #1
doomsdaysignals
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My Caliper brakes dont fit on my new fork.

Hi

I put my Shimano Tiagra 4500 front brakes on a new frame, but with the fork, the brakes only reach the tyre and not the rim. Should I get a different kind of brake, or is just Shimano calipers not suitable then?
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Old 02-02-12, 07:19 PM   #2
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Sorry for noob post.
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Old 02-02-12, 07:29 PM   #3
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Apparently your frame and fork require "long reach" calipers while "short reach" calipers are far more common these days and probably what you bought.

"Reach" is the distance from the center of the brake pad to the center of the rim's brake track and all calipers have some adjustment range. Short reach typically cover the range of 37 to 47 mm while long reach extend from 47 to 57 mm. Shimano and Tektro make long reach brakes in some models and it sounds like they are what you need.

BTW, there are some very long reach brakes available, as much as 80+ mm, but they are mostly for BMX and similar bikes.
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Old 02-02-12, 07:30 PM   #4
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this is fairly common. Fork lengths vary based on the intended wheel size (27" vs 700c) expected tire size, fender clearance, or other considerations.

Brakes likewise vary in reach, which is measured from the center bolt to the rim (measured center to center). Apparently your new fork is longer than your old one, so you need new brakes with longer reach. Measure the reach you'll need and shop for a brake with the correct range. Typically brake reach is expressed as a range ie, 39-57mm, so the ideal brake will be one where the actual reach is the center of the range.
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Old 02-02-12, 07:43 PM   #5
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Thanks folks. I see what you mean now. Cheers.
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