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Advice please re Proshift V-Brakes

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Advice please re Proshift V-Brakes

Old 09-18-09, 02:23 PM
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Advice please re Proshift V-Brakes

I just picked up a cyclocross bike that has Proshift V-Brakes, pictured below.

What is the wheel? Is it some sort of anit-lock device? With Shimano STI shifters, I find these brakes to be very mushy and am thinking of replacing them. Also, I can't mount a rack. The wheel is in the way.

Thanks

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Old 09-18-09, 02:26 PM
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That "wheel" is a travel agent. Which allows you to use STI's with v-brakes, which you normally cannot.
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Old 09-18-09, 03:13 PM
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That makes sense.

Now my problem is how to mount the rack around the wheel, which sticks out about 1/4" past the brazeon. The only think I can think of is to use a long screw on that side and shim the rack arm out past the wheel.
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Old 09-18-09, 03:17 PM
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Originally Posted by RFC View Post
That makes sense.

Now my problem is how to mount the rack around the wheel, which sticks out about 1/4" past the brazeon. The only think I can think of is to use a long screw on that side and shim the rack arm out past the wheel.
I'm not sure exactly what you're talking about here. Can you post a side profile picture of the eyelet rack area in question?
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Old 09-18-09, 04:08 PM
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Originally Posted by RFC View Post
That makes sense.

Now my problem is how to mount the rack around the wheel, which sticks out about 1/4" past the brazeon. The only think I can think of is to use a long screw on that side and shim the rack arm out past the wheel.
I think you mean the Travel Agent will be in the way of the rack. Correct? I wouldn't bother cobbling the rack mount, I would get a nice set of traditional cantilever brakes for the rear at least.
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Old 09-19-09, 02:39 PM
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Yeah. Unlike V-brakes, traditional cantilevers use "normal" lever travel. Rear brakes take less than half the loading of front brakes, so there should be no question about brake performance back there.

Unfortunately, traditional cantilevers also stick out more than V-brakes, so that may not solve the problem. You could try bending the rack mount to clear...
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Old 09-19-09, 02:41 PM
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Switching to cantis will solve it, they won't be anywhere near the rack braze-ons.
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Old 09-19-09, 03:33 PM
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Originally Posted by norwood View Post
I think you mean the Travel Agent will be in the way of the rack. Correct? I wouldn't bother cobbling the rack mount, I would get a nice set of traditional cantilever brakes for the rear at least.
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Old 09-19-09, 03:37 PM
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Thanks all. Canti's may be the answer. Any recommendations, i.e., is there a "Tektro brake" of the canti world?

BTW, if I go with canti's, what do I use for a cable guide in the rear?

Here is a pic of another possible solution -- shimming the rack arm away from the travel agent.


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Old 09-19-09, 04:46 PM
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Originally Posted by RFC View Post
Thanks all. Canti's may be the answer. Any recommendations, i.e., is there a "Tektro brake" of the canti world?
In fact there is, and they are called Tektro. They make several very fine cantis.
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Old 09-19-09, 09:22 PM
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Originally Posted by RFC View Post
I grew up in Lincoln. Now watching the Va Tech game.
We were robbed.


Originally Posted by RFC View Post
Thanks all. Canti's may be the answer. Any recommendations, i.e., is there a "Tektro brake" of the canti world?

BTW, if I go with canti's, what do I use for a cable guide in the rear?

Here is a pic of another possible solution -- shimming the rack arm away from the travel agent.

You can purchase add-on cable stops. Your rack mount looks like trouble waiting to happen. Alot of leverage against those braze-ons.
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Old 09-19-09, 09:25 PM
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Originally Posted by norwood View Post
We were robbed.




You can purchase add-on cable stops. Your rack mount looks like trouble waiting to happen. Alot of leverage against those braze-ons.
As long as the rack is level that's fine. All those brazeons do is prevent the rack from rotating. It doesn't carry any real load.
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