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the fist
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13,711 Posts
Discussion Starter · #1 · (Edited)
I need help putting new cables on a bike. learn me.

I bought some new cables and want to put them on my girlfriend's bike.
Can someone point me to a step by step video or instructional including pics?
What tools will I need?
I, also, don't understand what it means to stretch the cables.

if you have any other tips to help out, too, please.
 

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Captain Obvious
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11,876 Posts
JohnHenry said:
I bought some new cables and want to put them on my girlfriend's bike.
Can someone point me to a step by step video or instructional including pics?
What tools will I need?
I, also, don't understand what it means to stretch the cables.

if you have any other tips to help out, too, please.
http://www.parktool.com/repair/byregion.asp?catid=53&imageField2.x=16&imageField2.y=12

several may need to be looked at.

don't forget to copy it into that other thread too.
 

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Registered
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2,604 Posts
JohnHenry said:
I bought some new cables and want to put them on my girlfriend's bike.
Can someone point me to a step by step video or instructional including pics?
What tools will I need?
I, also, don't understand what it means to stretch the cables.

if you have any other tips to help out, too, please.
Here is a good source of info:

http://www.sheldonbrown.com/cables.html

Pay attention to the finishing of housing ends. There is a pic.

Cables don't stretch, but if you do not finish the housing ends properly, then the housing may "settle in" a little the first few times you ride giving what you perceive as cable stretch.
 

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n00bsauce
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13,507 Posts
Yeah, cables do "stretch". Brakes and derailleurs often need a readjustment after a period of riding when new cables are installed. The individual strands don't actually elongate but the twisted strands do twist together just a little bit tighter and effectively elongate the cable.

edit: better cables that are "pre-stretched" won't elongate much at all. Probably not enough to require adjustment unless, like you mentioned, they aren't fully seated.
 

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Registered
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2,275 Posts
MerlinAma said:
Cables don't stretch, but if you do not finish the housing ends properly, then the housing may "settle in" a little the first few times you ride giving what you perceive as cable stretch.
cables do stretch.... even DA and campy... real cheap ones stretch a lot...

dérailleur - once u decide on length and tighten all the bolts, along the downtube grab the cable and pull down....u will see it has stretched out.... do this a few times, but do use caution.... when done, and the cable is noticeably looser, readjust the tension and retighten the fixing bolt on the dérailleurs.

brakes.... set the pads close to the rim with the cable tension, and then basically whale on the brake levers with a few pumps... u will see that the gap b/w the pads and rim has now increased.... reset to desired gap. retighten fixing bolt.

done.
 
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