Go Back  Bike Forums > Bike Forums > Classic and Vintage Bicycles: Whats it Worth? Appraisals.
Reload this Page >

Seat post binder bolt & unknown frame number

Notices
Classic and Vintage Bicycles: Whats it Worth? Appraisals. Use this subforum for all requests as to "How much is this vintage bike worth?"Do NOT try to sell it in here, use the Marketplaces.

Seat post binder bolt & unknown frame number

Old 02-24-15, 08:35 AM
  #1  
Bike tinker man
Senior Member
Thread Starter
 
Join Date: Dec 2014
Location: Retired to Penang Malaysia originally from UK
Posts: 336

Bikes: My 1978 Raleigh from new, 1995 Trek, & constant changing & rebuilding of other bike projects.

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Seat post binder bolt & unknown frame number

Having read on here for many years & recently become an active member, I realize there is a considerable wealth of knowledge out there so I知 hoping some people will be able to help.
Please note I知 living (retired in Malaysia from UK) & finding old bikes out here unlike what I read in the USA is almost impossible, I致e recently picked up a couple of old wrecks missing many parts, but being butted frames & forged drop outs, & other points I guess this one here is about mid 1980s,
& its my hobby.

There were absolutely no decal markings or components worth helping in the identification process, the top tube is 25.4 mm (1) the BB is 68.mm & 24.TPI same as the 1 fork, the seat post is 25.4 mm, drop out rear wheel spindle slot is 10.mm: so very high chance it痴 a UK frame. I知 expecting it to be a classic or anything rare, but be really nice to know its manufacturer for rebuild.

On rubbing down the frame as it was horribly hand painted a grotesque orange, its presently rubbed down & in the process of being primer sprayed.
I realized the seat post binder bolt was the notched type like my two of my old Raleigh痴 whereas my other bikes are not, & I cannot remember on past bikes I致e owned.

Question:- is the binder bolt specific to Raleigh only? see photo of seat post bolt hole.

Question:- the frame number is SU 89080470 does anyone recognise this numbering as it does not seem like a Raleigh number? One could say it stands for 19-89 08 month, & 0470 bike that year but it still does not say which company? The numbering is stamped across the underside of the BB, in line with the axle.

Thanks in advance to those who read & reply
Attached Images
File Type: jpg
20150224_163400.jpg (73.0 KB, 9 views)
File Type: jpg
20150224_160457.jpg (58.1 KB, 10 views)
File Type: jpg
20150224_160407.jpg (97.0 KB, 9 views)
Bike tinker man is offline  
Old 02-24-15, 08:48 AM
  #2  
exxongraftek
Senior Member
 
exxongraftek's Avatar
 
Join Date: Apr 2011
Location: Bike Heaven (Sunnyvale CA)
Posts: 767

Bikes: No-name LH drive track. Also ride an Exxon Graftek, a Masi, a Trek R200 or a RR Boneshaker for fun!

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 60 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Reminds me of many late 70's early 80's "bike boom" frames. I had one very similar to this in the late 80's and never could figure out the origin.
Forged rear dropouts are a cut above the norm, but the 1" seat post suggests inexpensive straight-gauge 1020 tubing instead of butted.
The notched binder is not exclusive to Raleigh frames and also marks this as a lower-end (but not bottom-end) frame.
You may be correct regarding the serial number, or it could be interpreted as the 70th frame made 4th day of 8th month or 8th day of 4th month.
SU may refer to the maker or who was buying the lot of frames - any other guesses from our panel?
exxongraftek is offline  
Old 02-24-15, 09:42 AM
  #3  
zukahn1 
Senior Member
 
zukahn1's Avatar
 
Join Date: Oct 2011
Location: Fairplay Co
Posts: 8,025

Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed

Mentioned: 21 Post(s)
Tagged: 1 Thread(s)
Quoted: 443 Post(s)
Liked 229 Times in 147 Posts
This frame should take a standard notched binder bolt you can get these at pretty much any shop or bike coop for a couple of bucks. You don't have to use a Raliegh binder bolt they where just a standard bolt with Raliegh markings.
zukahn1 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mr.Weatherby
Bicycle Mechanics
10
04-09-16 12:48 PM
Inertianinja
Road Cycling
10
03-14-13 09:16 AM
tsappenfield
Classic & Vintage
12
01-15-13 07:03 PM
jrickards
Classic & Vintage
6
10-07-12 07:12 AM
guygadois
Classic & Vintage
4
01-16-12 04:02 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright ゥ 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.