Fitting brakes to front fork - bolt length

[KneesUp]

I splashed out on a new fork from Planet X (and when I say 'splashed out' I mean 'bought the one in the colour they are selling cheap') for a frame I've had sat in the shed for a while.

While the frame has been gathering cobwebs I've been picking up other bits for it, so I've been putting it all roughly together this week.

Anyway, when I put the front caliper on the fork, which being carbon is quite fat at the crown, I can only tighten the allen-head-nut thing half a turn, which does not feel like anything like enough thread to keep it all together when I have to slam the brakes on. The picture is intended to show the size of the bolt compared to the crown. There is a recess in the fork so the allen-key-nut thing does sit inside the fork, but I can still only get half a turn before it's tight.



I have concluded I need a longer allen-key-nut thing, but if I google of that not much useful comes up. Can someone tell me the proper name for the loose bit shown below please?

 

[Tim Hall]

Front brake recessed nut. Getting that colour might be tricky though.

 

[KneesUp]

Thanks @Tim Hall - I notice it's one of those items that's priced at "people who want one really need one" levels. £4 for a nut!

 

[raleighnut]

They normally come with the brake caliper but a decent bike shop should stock them, they certainly can be 30mm overall length cos I've got one that long in my spares stash.

 

[Venod]

What length do you want this is from ebay, they do longer ones too.

http://www.ebay.co.uk/itm/New-Tektr...601226?hash=item3f6e8be3ca:g:TeMAAOSwrklVJjoR

 

[S-Express]

'sleeve nut' is the name you are looking for..

 

[KneesUp]

Thanks all - I'm off today so I'll see what the LBS has in.

 

[KneesUp]

Early closing at the LBS on Thursday it seems. Bugger!

 

[Globalti]

It's a pity you don't live near me in Lancashire because I've got a couple of longer ones in my box of bits that I would swop for a glass of beer.

 

[midlife]

SJS do them as well

Shaun