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PostPosted: Thu Oct 27, 2011 2:11 pm 
MacRetro rider
MacRetro rider
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Joined: Fri Mar 09, 2007 2:11 pm
Posts: 8700
Location: DUNDEE
kaiser wrote:
I'm thinking fire road would be better.


that inners route I have put forward is 90% fire road, could easily be 100%


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PostPosted: Thu Oct 27, 2011 5:52 pm 
MacRetro rider
MacRetro rider

Joined: Fri Feb 09, 2007 4:16 pm
Posts: 8661
You are completely right as per the the AHeadset its just its the best bodge to address one of the Raleigh Twenties major shortcomings. In an original Twenty the top cup is replaced with a nylon bushing which as it does not involve bearings produces an unsatisfactory steering experience. Unfortunately due to the strange threading system used in the steerer the thread stops about an inch above the top cup thus a normal threaded headset will not work hence the AHeadset top cup combined with a threaded headset lockring works best. I will give the system further thought !
Cant easily get the thread in the steerer extended because its Raleighs own 26 TPI threading not the international standard 24TPI :roll:


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PostPosted: Thu Oct 27, 2011 6:02 pm 
MacRetro rider
MacRetro rider

Joined: Fri Feb 09, 2007 4:16 pm
Posts: 8661
I am suggesting people think realistically about safety. Chrome rimmed wheels will not give good stopping in the wet, infact they wont give any stopping at all. If steel rims are essential for your build then best fit drum brakes.
Check shirts and jeans are de rigeur plus any other 70's fashion statements you care to add. Helmets are also mandatory even if they spoil the look :wink:


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PostPosted: Thu Oct 27, 2011 7:13 pm 
MacRetro rider
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Joined: Sat May 22, 2010 7:25 pm
Posts: 4977
Location: Edinburgh
Don't worry Velo, if chrome rims are involved they will have been thoroughly attacked with heavy grit sandpaper and roughed up completely, it worked back in the day. Mind you I was younger and stupider then.


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PostPosted: Thu Oct 27, 2011 8:46 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 21, 2009 11:02 pm
Posts: 5253
Location: Falkirk! But I am a Fifer so that's OK...
a bodge to make something more suitable for off-road would appear to well within the spirit of the event, although using tech from 15 years in the future would seem to be a bit Marty McFly.


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PostPosted: Thu Oct 27, 2011 8:59 pm 
MacRetro rider
MacRetro rider

Joined: Fri Feb 09, 2007 4:16 pm
Posts: 8661
I have rebodged using old school technology.
I have used a crown race placed upside down in the top cup, back filled with spacers and locked down with the appropriate lock rings. In theory at least it should be fine. :D

So now you've picked me up on my failure to live up to the ideals of my own idea I am now going to be watching you lot :wink:


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 Post subject:
PostPosted: Thu Oct 27, 2011 11:40 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 21, 2009 11:02 pm
Posts: 5253
Location: Falkirk! But I am a Fifer so that's OK...
oh crap!


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PostPosted: Thu Oct 27, 2011 11:58 pm 
P.o.T.M. Winner / MacRetro Rider
P.o.T.M. Winner / MacRetro Rider
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Joined: Fri Jan 23, 2009 1:03 am
Posts: 5502
Location: In the foothills of the foothills of The Cairngorm Massif :D
3sp Sturmey Archer on mine :lol:

..and a big front ring :P


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PostPosted: Fri Oct 28, 2011 12:10 am 
Gold Trader / MacRetro rider
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Joined: Wed Aug 22, 2007 12:23 am
Posts: 15608
zigzag wrote:
oh crap!


expand please.


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PostPosted: Fri Oct 28, 2011 12:12 am 
MacRetro rider
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Joined: Sat May 22, 2010 7:25 pm
Posts: 4977
Location: Edinburgh
Mr Panda wrote:
3sp Sturmey Archer on mine :lol:

..and a big front ring :P


I don't think I'll risk a big front ring, they just mean I end up going faster than my ability.

I was thinking maybe a 24 up front :oops:


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