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 Post subject: Disc Brake advice
PostPosted: Sun Feb 05, 2012 4:54 pm 
Retro Guru
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Joined: Sun Mar 13, 2011 1:47 pm
Posts: 492
Location: Ringmer, Sussex.
Hello

I am looking at getting some disc brakes for general on road use and occasional of road ... but not hardcore down hill abuse :lol:

Any advice on disc size front rear. Or anything really as I have never had disc brakes on a bike before and would like to get in to this new fangled idea :lol: and has anyone tried the new music on a disc - cd or something :lol:

Thanks Dave

who still calls dvds video lets watch a video - just me oh well :roll:


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 Post subject:
PostPosted: Sun Feb 05, 2012 4:56 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
The consensus here will be 160's no need for more.


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 Post subject:
PostPosted: Sun Feb 05, 2012 5:18 pm 
Old School Hero

Joined: Wed Dec 14, 2011 9:57 am
Posts: 183
^ What he said.


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 Post subject:
PostPosted: Sun Feb 05, 2012 5:38 pm 
Retro Guru
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Joined: Sun Mar 13, 2011 1:47 pm
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Location: Ringmer, Sussex.
So 200ish a little over kill???


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 Post subject:
PostPosted: Sun Feb 05, 2012 5:50 pm 
Old School Hero

Joined: Sun May 29, 2011 7:25 pm
Posts: 220
Location: Swansea
You can never have too much braking :) if its not significantly more costly /difficult to fit bigger rotors, and the minimal weight penalty doesn't bother you, then why not?

180 front, 140 rear works well.


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 Post subject:
PostPosted: Sun Feb 05, 2012 6:21 pm 
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Agreed, if you have 200's and all the mounts and theyre ok for your frame and stuff then may as well. Since getting some 203's a few years ago, all my bikes have had them now.


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 Post subject:
PostPosted: Sun Feb 05, 2012 6:37 pm 
retrobike rider
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Joined: Tue Jul 14, 2009 7:52 pm
Posts: 1904
Location: Trancecentral
It'll also depend on your disc brakes, the calipers are designed for a certain rotor size without adapters. You can add adapters, +20mm etc to change rotor sizes, it depends if you want a clean look.

Then there's the issue of braking stresses and what the frame/forks were designed to tolerate.

160mm will stop you just fine.


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 Post subject:
PostPosted: Sun Feb 05, 2012 7:29 pm 
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Joined: Thu Jul 07, 2005 7:16 pm
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Location: U.K
whats the max the frame or fork will take


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 Post subject:
PostPosted: Sun Feb 05, 2012 8:14 pm 
Gold Trader / MacRetro rider
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Joined: Fri Sep 05, 2008 6:36 pm
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Location: Edinburgh
Oh dear :oops:

6 pots & 9" rotors :lol: :lol:

Image

Overkill :wink:

G


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 Post subject:
PostPosted: Sun Feb 05, 2012 10:02 pm 
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Joined: Sat May 22, 2010 10:33 pm
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Location: Suffolk
160's again for road use. I use 180/160 on my XC bike and it has no trouble stopping on steep downhill sections.

What calipers were you tinking of using. Going for hydraulic or cable operated calipes?


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