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PostPosted: Tue Jul 03, 2018 8:28 pm 
Devout Dirtbag
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Joined: Sun Apr 22, 2018 3:59 pm
Posts: 135
Evening chaps.

Right... whole new learning curve for me today.

So my Tiagra groupset came today (minus the chain, they forgot to include it) and I have been busy trying to work things out.

Firstly the brakes have these chrome sleeve that goes on the threaded end to secure instead of a traditional nut, those who have tried this will know that the threaded sleeve to secure these new calipers will not go through the hole in the frame or the forks :shock:

So before I got the drill out I had a gander on the net for info, turns out some people put the front caliper on the rear with a nut and the rear caliper on the front and secure through the inside of the fork, very cool idea 8)

Anyway I have gave this a go, not sure what I am doing so I just wanted someone to look over this and see if it looks alright?

I am a bit worried about the washer and spring washer and nut combo I am using as I took this from the original set of brakes.

Am I good to go with this do you think?

Thanks :oops:

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PostPosted: Tue Jul 03, 2018 8:56 pm 
Old School Grand Master

Joined: Mon Feb 11, 2008 9:42 am
Posts: 3473
Drill the crown, use two front brakes.

That front brake risks the crown cracking and pulling the brake it when you least expect it.
Get some better washers and a nyloc for the back.


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PostPosted: Tue Jul 03, 2018 9:10 pm 
Devout Dirtbag
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Joined: Sun Apr 22, 2018 3:59 pm
Posts: 135
I didn't want to start drilling the frame and forks and I have already bought the chainset and cannot return single items so I am stuck with what I have.

I wonder if you can get a replacement long thread bar like the rear caliper has and then put a nut on the outside of each, that would be better than me getting the drill out, you should see my drilling lol.

Yeah I will look at getting a better nut for the rear brake, but not sure if I need one of those conical washers or use what I have or what.


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 Post subject: Re:
PostPosted: Tue Jul 03, 2018 10:14 pm 
retrobike rider
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Joined: Sun Feb 19, 2012 10:08 am
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Location: Nth Somerset, UK
You have the U shaped washer on the wrong way round.

The curved portion is supposed to be against the outer diameter of the tube giving the flat surface for the spring washer and nut to act upon.


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 Post subject: Re: Re:
PostPosted: Tue Jul 03, 2018 10:16 pm 
Devout Dirtbag
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Joined: Sun Apr 22, 2018 3:59 pm
Posts: 135
NeilM wrote:
You have the U shaped washer on the wrong way round.

The curved portion is supposed to be against the outer diameter of the tube giving the flat surface for the spring washer and nut to act upon.


See... Now I'm glad I asked :lol: :oops:

Thanks for spotting that NeilM i'll get right on it 8)


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PostPosted: Wed Jul 04, 2018 7:22 am 
Dirt Disciple

Joined: Fri Jun 10, 2016 4:11 pm
Posts: 45
You only need to drill the back of the fork and get a longer sleeve nut so that it reaches. They are easily available for carbon bikes with oversized forks. You may be able to do the same with the rear but will need a right angled drill attachment even then you may not have room.

Ray


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PostPosted: Wed Jul 04, 2018 7:31 am 
King of the Skip Monkeys
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Location: Crayon-Munching-Fart-Muppet
I'm not sorry in saying thats possibly the worst cobbled together bits I've ever seen!

Unfortunately what takes about 30 seconds of spannering takes about 3000 words of explanation.

Heres how those concave washers work for the rear brake:

Image

Dont be afraid of drilling but if you are, theres nutted brakes available, you'll have to check the drop

https://www.velovitality.co.uk/products ... tted-brake


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PostPosted: Wed Jul 04, 2018 7:35 am 
King of the Skip Monkeys
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Location: Crayon-Munching-Fart-Muppet
for the front

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


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 Post subject: Re:
PostPosted: Wed Jul 04, 2018 10:20 am 
Devout Dirtbag
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Joined: Tue Aug 22, 2017 5:20 am
Posts: 108
Location: Cheshire
If you do buy another pair of brake calipers...i.e. nutted calipers...check your drop length before you spend.

Sand_Dune


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 Post subject: Re:
PostPosted: Wed Jul 04, 2018 12:49 pm 
Retro Guru
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Joined: Mon Sep 24, 2012 9:10 pm
Posts: 1118
http://www.retrobike.co.uk/forum/viewto ... p;start=10


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