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Old 11-14-10, 07:01 PM   #1
jshelly
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New V-Brakes - Is vertical alignment a rule of thumb or a functional issue?

I just replaced my v-brakes and played with the spacers as much as I could (moved the large one to the outside etc.. etc..) and this is the best I could do with the vertical alignment.

Every tutorial I have watched mentions that they should line up vertically, do I need to get different spacers? Right now the small bowl shaped spacer is on the inside and the larger one is on the outside.




Last edited by jshelly; 11-14-10 at 07:12 PM. Reason: New Angle
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Old 11-14-10, 07:01 PM   #2
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That picture shows us absolutely nothing.

What is this thread about?
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Old 11-14-10, 07:04 PM   #3
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That picture shows us absolutely nothing.
What is this thread about?
Would you prefer a different angle?
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Old 11-14-10, 07:05 PM   #4
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can't see the pads or the rim.
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Old 11-14-10, 07:06 PM   #5
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can't see the pads or the rim.
ok, be right back . . .
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Old 11-14-10, 07:08 PM   #6
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I think the OP is asking if the top of the Vee's are splayed out too much.

If so then just my opinion ... whilst it does on paper make a difference to braking forces .... I've never really bothered with getting the brakes arm's to 90 deg from the rim ... and I've never noticed any difference.
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Old 11-14-10, 07:11 PM   #7
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I think the OP is asking if the top of the Vee's are splayed out too much.

If so then just my opinion ... whilst it does on paper make a difference to braking forces .... I've never really bothered with getting the brakes arm's to 90 deg from the rim ... and I've never noticed any difference.
Exactly, well done sir . . .
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Old 11-14-10, 07:14 PM   #8
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looks like a bad combination of parts, but it doesn't matter as long as you get the pads to hit squarely against the rim sidewall and have enough stopping power.
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Old 11-14-10, 07:16 PM   #9
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looks like a bad combination of parts, but it doesn't matter as long as you get the pads to hit squarely against the rim sidewall and have enough stopping power.
How so? I used all the parts that the brakes came with (pads, spacers, tube etc...) or do you mean the brakes in combination with the bike itself?
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Old 11-14-10, 07:24 PM   #10
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Just had another look ... not a cure to the problem but you have your convex washers in the wrong place.

brake pad - concave washer - convex washer - brake arm - convex - concave - normal washer - nut .
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Old 11-14-10, 07:30 PM   #11
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Just had another look ... not a cure to the problem but you have your convex washers in the wrong place.
brake pad - concave washer - convex washer - brake arm - convex - concave - normal washer - nut .
I have concave, convex, brake arm, then concave and then convex so I need to switch the outside ones - thank you for picking that up.
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Old 11-14-10, 08:19 PM   #12
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How so? I used all the parts that the brakes came with (pads, spacers, tube etc...) or do you mean the brakes in combination with the bike itself?
yeah, just a bad combination of fork, brake and rim.

I usually find that cartridge type V-brake pads are thinner, but it might not make a difference in your case.
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Old 11-14-10, 10:12 PM   #13
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yeah, just a bad combination of fork, brake and rim.

I usually find that cartridge type V-brake pads are thinner, but it might not make a difference in your case.
Your unfortunately right. Every combination of spacer had no better result with vertical alignment. I switched back to my original v-breaks which fit perfect, and just swapped out the pads for new ones.

Thanks for saving me from going nuts. Well at least completely nuts.
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Old 11-14-10, 10:17 PM   #14
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Your rim is likely a bit wider than what the frame was designed to use. I've seen this happen when, for example, the owner switches from a narrow "race" rim to something like Sun Ryno Lites which are a few mm's wider. The "cure" that will help but maybe not totally cure the arm angles is Koolstop "Thinline" pads.

And the angle your arms were at isn't anything to worry about. It would have been fine. It just looks a little geeky.
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