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Raleigh Twenty modified.

Discussion in 'Vintage and Classic Bikes' started by Mark Grant, 3 Mar 2016.

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  1. Mark Grant

    Mark Grant Acting Captain of The St Annes Jombulance.

    Location:
    Hanworth, Middx.
    I picked up a Raleigh Twenty a year or so ago, it was a bit rough, so I gave it a quick strip and repaint but the 3 speed hub was not working too well and the rims were quite rusty so a couple of days ago I thought I'd see if I could update it a bit instead.
    I got wheels & deraileur from a kids 6 speed mountain bike for nothing, but the wheels being smaller than the Raleigh items required looong drop brakes or a drop bracket. I had an old BSO mountain bike frame in the garage so I cut off the V brake bosses and welded them onto the Twenty. I also had to re space the rear dropouts.
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    I need to tidy the welds a bit, my mask was playing up. (Thats my excuse anyway!)
    I wanted to use a modern cotterless bottom bracket but the Raleigh shell on a Twenty is about 76mm and has the Raleigh thread. I searched the internet for solutions and after reading many peoples work arounds I came up with my own take on what others had done. After a lot of measuring I decided on a 113mm theadless BB 68mm shell which I ordered from Ebay and when it arrived I took the grinder to the BB shell.
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    I also needed to take a die grinder to the inside of the BB shell as the areas where the down tube and seat stays had been welded had 'grown' inside and the new BB was a snug fit.
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    Lots of trial fitting and judicious adjustment with the grinders and it seems OK.
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    Try on some chainrings.
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    Chainline looks reasonable.
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    Another thing that I wanted to do was to replace the plastic bush at the top of the head tube with a bearing, lots of fiddling about with bits out of the spares box and I came up with what I hope will be a good solution.
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    I quite wanted to keep the steering binder, so again after measuring I cut about 5mm off the top of the headtube and fitted a top race. The top bearing cup was threaded internally but the steerer tube thread didn't extend down far enough to load the bearings so I ground out the thread and the bearings are adjusted as before the mod by the nuts above the binder.
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    I'll finish mocking it up then stip it again for paint.
     
    Last edited: 3 Mar 2016
    Dirtyhanz, Illaveago, winjim and 11 others like this.
  2. raleighnut

    raleighnut Guru

    Location:
    On 3 Wheels
    You can do allsorts to a Twenty


    View: https://www.youtube.com/watch?v=bKHz7wOjb9w&feature=player_detailpage
     
    mjr likes this.
  3. mjr

    mjr Wanting to Keep My EU Citizenship

    :sad: to the loss of the 3-speed hub
     
  4. Mark Grant

    Mark Grant Acting Captain of The St Annes Jombulance.

    Location:
    Hanworth, Middx.
    The original wheels are hanging in the garage.
    I have a mate that fancies stripping a SA hub so I may give it to him.
     
    raleighnut likes this.
  5. roadrash

    roadrash cycle chatterer

    I am also a member of the raleigh twenty forum , no where near as active as this forum but a helpful bunch, have a look at at what some folk have done to a twenty.

    http://raleightwenty.webs.com/apps/forums/
     
  6. Mark Grant

    Mark Grant Acting Captain of The St Annes Jombulance.

    Location:
    Hanworth, Middx.
    After not touching this bike for a while I have got around to doing a bit more.
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    I still need to paint the mudguards and chain cover.
     
  7. midlife

    midlife Veteran

    Mondrian :smile:

    Shaun
     
    Saluki, Mark Grant and Cycleops like this.
  8. Mark Grant

    Mark Grant Acting Captain of The St Annes Jombulance.

    Location:
    Hanworth, Middx.
    Ha! I was just using up rattle cans and was thinking more Tetris!
     
  9. midlife

    midlife Veteran

  10. Mark Grant

    Mark Grant Acting Captain of The St Annes Jombulance.

    Location:
    Hanworth, Middx.
  11. Mrs M

    Mrs M Veteran

    Location:
    Aberdeenshire
    That looks fab :okay:
    I saw a young lady earlier this week stopped at traffic lights on a green Raleigh 20, made me smile :smile:
    Memories.
     
    Dirtyhanz and Mark Grant like this.
  12. Saluki

    Saluki I've run away with my friends to..

    Location:
    ...New Tealandia
    Now, if the Raleigh Twenty that I got for my 12th birthday had looked like that I might have actually ridden the thing.
     
  13. mikeymustard

    mikeymustard Über Member

    At last I see the point of "shoppers" :smile:
     
    Mark Grant likes this.
  14. I had a folding Raleigh 20 that I used at work,. At my size, it was the only folding bike that would be big enough and reliable enough to carry my weighty, 6'3" frame around without fear of collapse.
     
  15. biggs682

    biggs682 Smile a mile bike provider

    Location:
    wellingborough
    A mate of mine has just finished this not sure what model its based on , but he seems happy with it

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    Bodhbh, tyred and roadrash like this.