How to make a cheap shim?
#1
Senior Member
Thread Starter
Join Date: Feb 2007
Location: Monument, Colorado
Posts: 379
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
How to make a cheap shim?
Just a bit of advice please. My old Schwinn has a 1" seat tube. My front derailler is a lost cause. I have a derailler made for a 1 1/8" seat tube I would like to use. So I need a shim for 25.4 to 28.6 mm. I have found them online but with shipping it would cost me $15 to solve this minor issue. Any ideas on how to make my own cheap?
Thanks
Thanks
#2
My bike's better than me!
Join Date: Feb 2005
Location: Northern Colorado
Posts: 2,041
Bikes: (2) Moots Vamoots, (1) Cannondale T2000 tourer, (1) Diamondback Response Comp mtb
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times
in
1 Post
Cut pieces of a beer can. Stack as necessary.
#4
Unemplawyer
Join Date: Aug 2004
Location: The Natural State
Posts: 459
Bikes: 2006 21" Rockhopper
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by vpiuva
If you have an old inner tube cut it to fit.
#5
Senior Member
Join Date: Mar 2007
Posts: 3,132
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Both OK ideas. Macine shops keep "shim stock " on hand. I did in machine shops I had. If you're too random with the material,you could end -up with an impossibly stuck post N/G, we read about that plenty here at the forum. "feathered shim" is N/G either,it's tapered. Shim stock, sumtotal of twelve thousanths will do. Cold -rolled copper tubing is about that thickness,a plummer would have a piece,a can's too thin.
#6
Senior Member
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1572 Post(s)
Liked 643 Times
in
364 Posts
It's been a couple of decades but I think that I remember solving that problem by using Velox handlebar tape. The hardest part was figuring exactly how high the derailleur had to be before wrapping the handlebar tape around the seat tube.