Retrobike Forum Index

It is currently Sun Oct 21, 2018 6:56 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 14 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Twentys for 20
PostPosted: Sat Oct 13, 2018 11:22 pm 
Retro Guru
User avatar

Joined: Wed Aug 17, 2011 1:03 pm
Posts: 1303
Location: Saaa'fend, Essex
Not sure if this is the right section......but these are going to be used as road bikes so here goes.....

I've had a Raleigh itch that I've wanted to scratch for a while.....and that was to own a Raleigh Twenty. Mainly after seeing Sheldon Brown's Twenty and then finding out that there's quite a following for these bikes......and finding out that they can be turned into funky small wheeled commuter road bikes.

I found one locally.....and snapped it up for £20. A 1970 Twenty Model.....in fairly original condition, but proper filthy and unloved.

Image

Image

Image

3spd Sturmey Archer hub with grip shift and a dynohub up front to power(!?) the lights.

Pumped up the tyres, adjusted the brakes and rode it 5miles to work. 2 of the 3 speeds worked initially....but down to one by the time I arrived at work. Bit of lunchtime gear tweaking saw a return to full 3spd functionality for the ride home. Quite enjoyed it.

Anyway....decided that I like this bike as it is and can't bring myself to modify it.

So I bought another......again for £20

Image

1973 "Shopper" Model.....in fairly good condition......apart from the loosest, mal-adjusted headset ever.

So this is my donor bike! The plan is to strip it.....swap the better parts onto the Twenty (nice stuff like the "R" capped nuts and some of the chromework that's in better nick), sell what I don't need and then turn the frame into the fun 20" wheel commuter road bike. I've got a couple of thoughts about how I want it to look and what components I want to run on it......but those thoughts may change as i get into the project.

First issue to get around is swapping out the cotter pin bb to a square taper version so I can run with a roadbike crank. Not completely straightforward as the Raleigh bb is 26tpi and 76mm wide - common square taper bbs are 24tpi and 68mm wide.

Looking forward to getting stuck into this project.....

Some pics of the two:

Image

Image

Image

Image

Image


Top
 Profile  
 
 Post subject: Re:
PostPosted: Sun Oct 14, 2018 6:25 am 
Old School Hero

Joined: Thu Aug 20, 2015 9:01 am
Posts: 226
I'm sure you will have already seen this, Sheldon has 3-4 options for swapping out the BB for a modern crank -
https://www.sheldonbrown.com/raleigh-twenty.html


Top
 Profile  
 
 Post subject: Re: Re:
PostPosted: Sun Oct 14, 2018 10:59 pm 
Retro Guru
User avatar

Joined: Wed Aug 17, 2011 1:03 pm
Posts: 1303
Location: Saaa'fend, Essex
dan73uk wrote:
I'm sure you will have already seen this, Sheldon has 3-4 options for swapping out the BB for a modern crank -
https://www.sheldonbrown.com/raleigh-twenty.html


Yep, have had a read through that, cheers for the link......and read about a fifth option of machining a standard 68mm bb spindle in half, adding a spacer to widen it and brazing it all together.

To be honest narrowing the bb shell to 68mm and fitting a threadless bb is looking favourable at the mo.

Luckily I've got access to a helpful machinist and a machine shop which should make life easier. :)


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Mon Oct 15, 2018 10:12 pm 
Retro Guru

Joined: Tue May 11, 2010 4:13 pm
Posts: 652
Location: Scarborough
Are you going for drops and a generally speedy looking build on the blue twenty? If so please Please PLEASE can you keep the "Shopper" decal for added awesomes? :)


Top
 Profile  
 
 Post subject: Re:
PostPosted: Mon Oct 15, 2018 10:39 pm 
Retro Guru
User avatar

Joined: Sun Jun 28, 2015 9:54 pm
Posts: 714
well this sparked some memories .. back in the day, after a thrashing the Raleigh Grifter head tube would start disintegrating at the bottom end just above the lower bearing race. as a preventative measure you could inseret the chrome cap from trhe head tube of one of these to the Grifter head tube..

why not shoehorn a set fo skyway tuffs on there? 8)


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Tue Oct 16, 2018 10:15 am 
Retro Guru
User avatar

Joined: Wed Aug 17, 2011 1:03 pm
Posts: 1303
Location: Saaa'fend, Essex
Goldie wrote:
Are you going for drops and a generally speedy looking build on the blue twenty? If so please Please PLEASE can you keep the "Shopper" decal for added awesomes? :)


Err.....yeah of course! I had been considering this actually......especially as it's such a hideous 70's font. I may remake it in a different colourway but I think it'll be staying!

enc wrote:
well this sparked some memories .. back in the day, after a thrashing the Raleigh Grifter head tube would start disintegrating at the bottom end just above the lower bearing race. as a preventative measure you could inseret the chrome cap from trhe head tube of one of these to the Grifter head tube..

why not shoehorn a set fo skyway tuffs on there? 8)


Funnily enough the recent fixation with Raleigh Twentys has come about after buying this from a local chap......who also offered me the Twenty for a bargain price.

Image

He'd bought up a load of shoppers and a load of BMX parts and had created a few hybrids to sell.....there was something strangely appealing about the Puch which meant I had to have it (along with the Twenty of course!)

I think white Skyway Tuffs against the blue would actually look great......there's already a bike on this very forum which is a blue shopper sporting white tuffs and looks great IMO.


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Tue Oct 16, 2018 10:21 am 
Retro Guru

Joined: Tue May 11, 2010 6:39 pm
Posts: 563
Location: North London
Looking forward to seeing what you do with this. The Kingpin's awaiting a new stem... getting there!


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Wed Oct 17, 2018 10:24 am 
Retro Guru
User avatar

Joined: Wed Aug 17, 2011 1:03 pm
Posts: 1303
Location: Saaa'fend, Essex
bluetomgold wrote:
Looking forward to seeing what you do with this. The Kingpin's awaiting a new stem... getting there!


Any ideas what stem are you going for? I'm guessing I'm going to have to go for something really long (if I don't stick with the original). Can you buy long quill stems?

The blue shopper is now reduced to it's component parts. Only mildly stubborn part was one of the bottom bracket cups. The flats for getting the spanner on are really short......so resorted to a bit of nut and bolt technology to keep the spanner in place.

Image

Image

I've been scouring the freeads for a donor bike for wheels to replace the chrome plated jobbies. Decided I want to run with a cassette and derailleur at the rear so I have at least a few gears to choose from - I want to commute on this eventually so it'd be nice to have a few gears to play with.

The budget is tight so I opted for this absolute beauty......for a tenner. Round the corner from me so picked up last night and had the pleasure in stripping it and throwing most of it away.

Image

Careful now! No stunting, No jumping. No fun.

Image

Good thing about kids is that they tend to outgrow stuff before wearing it out. Loads of life left in these. They're Chinese and fairly clunky but they'll get me rolling....

Image

So next up is a bit of cold setting of the frame to get the wider hubs to fit and a bit of dropout fettling to allow the larger diameter spindles to fit. Loving the blackness though.....having thoughts of a Gulf blue/orange colour scheme with black components.

Image


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Wed Oct 17, 2018 10:48 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
User avatar

Joined: Sat May 09, 2009 11:46 pm
Posts: 4042
Location: East Riding of Yorkshire
Good to see another Raleigh Twenty project! I'm looking forward to see how you choose to build it up.

I got used a Mavic bottom bracket to get around the shell issues, which was a little work, but I'm happy I took that approach. I might even have a spare of those bottom brackets, though I need one for my Aende, so I'd have to work out which is needed for that before parting with any.

What are you doing about brakes?


Top
 Profile  
 
 Post subject: Re: Twentys for 20
PostPosted: Wed Oct 17, 2018 10:58 am 
Retro Guru

Joined: Tue May 11, 2010 6:39 pm
Posts: 563
Location: North London
sherlylock wrote:
bluetomgold wrote:
Looking forward to seeing what you do with this. The Kingpin's awaiting a new stem... getting there!


Any ideas what stem are you going for?


Nice work on the twenty... getting those BBs out can be a pig - I bought a special tool, but your technique looks great.

Re the stem, one of these just arrived in the mail. Feels solid, but heavy.

https://www.ebay.co.uk/itm/PROMAX-EXTRA ... 2420460364

If you are keeping the original forks and headset you might be better off in some respects to keep the original stem / bar setup. Nice to have a quick release on the stem on one of these.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: allenh, avalonian and 20 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group