Identify this Bottom Bracket?
05-06-15, 11:03 PM
#1
Senior Member
Thread Starter
Identify this Bottom Bracket?
I got this in a box of parts. Its clearly a Shimano bottom bracket. But, can anyone offer any information on what groupset it may have been part of? Or what model it is? I am trying to assign it some value. For what I have learned there is a hierarchy of BB. It appears to have never been used. It came in a box full for mid 1980s parts. Any thoughts?
05-07-15, 05:11 AM
#2
Thrifty Bill
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 23,524
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
Mentioned: 96 Post(s)
Tagged: 0 Thread(s)
Quoted: 1236 Post(s)
Liked 964 Times
in
628 Posts
1. Look up IE date code (May 1984).
2. Its either French or Swiss threaded, verify threading, either one will have good value.
Value is in threading, not the model. Swiss threading and french are both the same size, but swiss is reverse threaded on drive side. Swiss is MUCH more rare, and would have more value. French will have good value as well (more than standard).
2. Its either French or Swiss threaded, verify threading, either one will have good value.
Value is in threading, not the model. Swiss threading and french are both the same size, but swiss is reverse threaded on drive side. Swiss is MUCH more rare, and would have more value. French will have good value as well (more than standard).
05-07-15, 09:47 AM
#3
Senior Member
Join Date: Oct 2011
Location: Fairplay Co
Posts: 9,517
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: 26 Post(s)
Tagged: 1 Thread(s)
Quoted: 790 Post(s)
Liked 1,760 Times
in
634 Posts
I would agree the value in this BB is more in the sizing and threading than anything else. I would guess it would go for $40-50 nicer vintage BB with French or Swiss threading in 112mm length that would go nicely with a Japanese track crank are pretty rare.
05-08-15, 02:41 PM
#4
Senior Member
Thread Starter
1. Look up IE date code (May 1984).
2. Its either French or Swiss threaded, verify threading, either one will have good value.
Value is in threading, not the model. Swiss threading and french are both the same size, but swiss is reverse threaded on drive side. Swiss is MUCH more rare, and would have more value. French will have good value as well (more than standard).
2. Its either French or Swiss threaded, verify threading, either one will have good value.
Value is in threading, not the model. Swiss threading and french are both the same size, but swiss is reverse threaded on drive side. Swiss is MUCH more rare, and would have more value. French will have good value as well (more than standard).
05-08-15, 03:52 PM
#5
Senior Member
05-08-15, 07:01 PM
#6
Thrifty Bill
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 23,524
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
Mentioned: 96 Post(s)
Tagged: 0 Thread(s)
Quoted: 1236 Post(s)
Liked 964 Times
in
628 Posts
Thread
Thread Starter
Forum
Replies
Last Post
Charles Wahl
Classic & Vintage
36
08-15-11 08:38 PM
