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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 02-21-07, 08:34 PM   #1
skanking biker
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2 brake questions

I finally got the set of shimano 105 brakes I ordered from Nashbar today. I have two questions that are probably very basic, so please forgive my ignorance--I'm trying to learn:

1. When I opened the package 1 washer fell out---WTF do you need a washer for? Is this an essential peice? Where does it belong? I can't see a washer on either brake.

2. How do I tell which brake is front vs rear? They have different bolt lengths (I'm assuming for a reason)----also, is there any way I can use the rear brake on the front (of a different bike obviously)?


I know thats more than 2. Thanks for any responses.
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Old 02-21-07, 08:40 PM   #2
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1) Thick or small washer? Measurment? It's sometimes used to clear the area between the top of the brake and the headset (some bikes need this). It goes between the brake caliper and the fork (the front).

2) There's no way to screw it up unless you have two rears or two fronts.
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Old 02-21-07, 08:41 PM   #3
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front should have a longer pivot bolt, but the brakes themselves should be the same.
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Old 02-21-07, 08:42 PM   #4
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Long = front brake, short=back brake. The washer probably goes between the nut and the fork / bridge to prevent it loosening via vibration (assuming it's a slotted lock washer; if not, maybe to protect the paint from overtightening the nut?).
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Old 02-21-07, 08:43 PM   #5
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also just for clarification on number 2) longer bolt = front, and you can try and rig a rear brake to the front, you just need to replace the bolt with one of the appropriate length
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Old 02-21-07, 08:44 PM   #6
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oops beat me to it dmg
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Old 02-21-07, 08:50 PM   #7
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you probably can't use the rear on the front of a different bike since the pivot bolt is so short. you can use an older rear brake (early 80s-pre recessed brakehole mounting) with new forks if you have a recessed nut for it.

I actually seem to remember reading something about using a rear brake on the front by feeding the nut up through the hole in the bottom of your steerer tube. so instead of the pivot bolt going through the front and back of your fork if just goes through the front. you can still use your allen wrench through the hole in the back of the forks. There are probably some washers or something involved, but if anyone can back me up on this, that'd be swell.
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Old 02-21-07, 08:58 PM   #8
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Quote:
Originally Posted by andrewssohip
also just for clarification on number 2) longer bolt = front, and you can try and rig a rear brake to the front, you just need to replace the bolt with one of the appropriate length

Will any old bolt of same size work, or are these bike specific----I noticed the threads had some kind of white material along them

[edit]: just to clarify why I am asking--i bought the brake for my iro build (they were so sheap and came as a pair)----i want to put the other one on my pista to replace the shimano sora brake that is on there now-----could I just swap the bolt from the sora with the new one?
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Old 02-21-07, 09:15 PM   #9
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Yes
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Old 02-21-07, 10:14 PM   #10
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you still might need a longer one. should not be too hard to find locally or on the internet if you do though.
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Old 02-21-07, 10:34 PM   #11
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I've got an old rear brake on the front with one of these

http://www.thethirdhand.com/index.cg...d=722270221718
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