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PostPosted: Mon Apr 02, 2018 7:28 pm 
Dirt Disciple

Joined: Mon Apr 02, 2018 7:23 pm
Posts: 14
Hi, my RC200 dropout fasteners are cracked. Specifically all of the aluminium nuts have cracks down their length and virtually fell in two halves on removal. The bolts may well be titanium so what’s the suggested solution? Do I simply buy standard steel chainset nuts? Thanks!


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PostPosted: Mon Apr 02, 2018 9:35 pm 
Lincs, East and South Yorks Deputy AEC
Lincs, East and South Yorks Deputy AEC
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Joined: Fri Feb 29, 2008 11:55 pm
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Location: GUNNESS NTH LINCS
yup


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PostPosted: Tue Apr 03, 2018 7:11 pm 
Dirt Disciple

Joined: Mon Apr 02, 2018 7:23 pm
Posts: 14
Thanks - on closer inspection the existing alloy nuts 'outers' are way too short. To get ample contact through the dropout and frame, they need to be near 12mm, whereas the ones i removed are near 7mm. The join would be much stronger with deeper parts.

Am I the only one to have this - if so, is there a recommended supplier of the deeper chainring bolt outers?

Thanks,


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PostPosted: Wed Apr 04, 2018 7:04 pm 
Retro Guru
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Joined: Fri Jun 06, 2014 8:07 pm
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Location: Tunbridge Wells
Northernmonkey wrote:
Thanks - on closer inspection the existing alloy nuts 'outers' are way too short. To get ample contact through the dropout and frame, they need to be near 12mm, whereas the ones i removed are near 7mm. The join would be much stronger with deeper parts.

Am I the only one to have this - if so, is there a recommended supplier of the deeper chainring bolt outers?

Thanks,

Happened to mine too. Just replaced them with some stainless chainring bolts I had lying around. All good now (though I should probably ‘invest’ in some fancy titanium ones).


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 Post subject: Re:
PostPosted: Tue Nov 13, 2018 8:11 pm 
Retro Guru
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Location: Macclesfield, Cheshire
So talk to me people.....
Normal chainring bolts, longer for preference. OK, no worries.

As for material is there any advantage to steel, alloy or Ti in this application? Weight plays a part but it's a tiny part so don't care too much about that. Is alloy more prone to failure?


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 Post subject: Re:
PostPosted: Tue Nov 13, 2018 10:29 pm 
Retro Guru
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Location: Macclesfield, Cheshire
Part of the reason I ask is one of the four bolts on the back of my RC200 is stamped PACE and appears to be funny alloy or even Ti, magnet doesn't like it anyway. The other 3 are steel and in a pretty poor condition. Spot the odd one out in the photo.

At least the nut side of the deal look like they match.

What was supplied on these from the factory? Let me guess, it depends what day of the week it was.


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 Post subject: Re:
PostPosted: Tue Nov 13, 2018 10:50 pm 
Retro Guru
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The original Pace stamped ones on mine were ally. All cracked though. Went for steel as a) I had some lying around and b) I wanted to get some decent torque on to hold the plates against the frame. There was a bit of creaking otherwise.

I have a feeling they were single chainring bolt lengths as I think they were off my single speed.


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PostPosted: Wed Nov 14, 2018 9:28 am 
Retro Guru
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Location: Macclesfield, Cheshire
Sounds like thats why I have only one left then! If they are all cracked and dead this bolt must be rare and therefore worth a fortune :D

Steel it is, plenty in the shed


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 Post subject: Re:
PostPosted: Sat Nov 17, 2018 11:29 am 
retrobike rider
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Joined: Thu Apr 17, 2008 1:24 am
Posts: 7722
Location: Manchester
I’ve seen titanium ones before.


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