Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Building a downtube friction shifter bike

Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Building a downtube friction shifter bike

Old 05-20-11, 05:23 PM
  #1  
chasem
x
Thread Starter
 
Join Date: Mar 2009
Posts: 73
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Building a downtube friction shifter bike

First of all, this isn't something I've started yet, so no pictures at this point.

I'm thinking about building one up as a bit of a commuter/beater bike - doesn't have to be put together from amazing parts or anything. And let's be honest - I may use this as an opportunity for upgrading parts of my main road bike - wheels, handlebars, saddle... whatever.

My biggest question here is where does one find a decent selection of friction shifters online? The one LBS around here doesn't have much to offer in that respect.

The frame I'm looking at getting is Nashbar's road frame. Price and quality seem okay (again, I'm not looking to build an amazing bike here).

Also, from what I've found/read, the impression I get is that friction DT shifters will pretty much work with whatever derailleurs one uses. Is that correct - that I could pick up sram 9 spd rear derailleur or shimano 8 spd and either will work?

Is there a limit to the number of gears on the cassette here?
chasem is offline  
Old 05-20-11, 05:37 PM
  #2  
KevinF
Keep on climbing
 
Join Date: Apr 2004
Location: Marlborough, Massachusetts
Posts: 2,193

Bikes: 2004 Calfee Tetra Pro

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 2 Times in 1 Post
https://loosescrews.com/index.cgi?c=S...id=88563012666
KevinF is offline  
Old 05-20-11, 05:38 PM
  #3  
mazdaspeed
Senior Member
 
mazdaspeed's Avatar
 
Join Date: Jun 2007
Location: WA state
Posts: 4,823
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
Just make sure to get a good set of shifters like simplex retrofriction, shimano 600, etc...
mazdaspeed is offline  
Old 05-20-11, 05:47 PM
  #4  
I_like_cereal
Fail Boat crewman
 
Join Date: Feb 2011
Location: PDX
Posts: 675

Bikes: Reynolds 853 Jamis Quest 1990s

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Or Sachs or Sachs Huret.
Yes you can Frankenbike your project with DTs. DTs are "dumb" shifters. They just pull the spring taught and release it. No worries about index 2:1 crap.
I_like_cereal is offline  
Old 05-20-11, 06:25 PM
  #5  
Puget Pounder
Wookie Jesus inspires me.
 
Puget Pounder's Avatar
 
Join Date: Mar 2011
Location: Seattle, WA
Posts: 2,225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time in 1 Post
That's the beauty with friction. Keep in mind that the more gears you have on your cassette, the more sensitive friction shifting is (which I like). I had friction on a 9 speed set up and I liked it way more than 6 speed. If you wanted to go 7s Shimano index, I have a few of those. They can switch to friction too.
Puget Pounder is offline  
Old 05-20-11, 06:31 PM
  #6  
rschleicher
Retro-guy
 
Join Date: Oct 2006
Location: Danville, CA
Posts: 285

Bikes: 1980 Raleigh Super Record

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
If you are using a steel frame (with typical steel-frame tubing dimensions), you will find decent amounts of old vintage parts on ebay. Old Suntour stuff works pretty well. Some downtube shifters are made for mounting on braised-on bosses, but some are just clamp-on. (But the clamps are usually assuming steel tubing.)

I had an old 1980 Raleigh that had originally come with stem-shifters, and I was able to find multiple examples of correct-year Suntour downtube shifters (straight friction, as well as "ratcheting" friction) on ebay for pretty cheap. I ended up buying some NOS parts (with clamp, and new cables) that were still in the original packaging - they must have been sitting in a bike shop someplace, all these years!
rschleicher is offline  
Old 05-20-11, 08:19 PM
  #7  
tborner
Wants a Vitus!
 
Join Date: Nov 2010
Location: Pennsylvania
Posts: 45
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I would look into getting a Shimano 600 Ultegra. I run mine with eight speed downtube shifters, and the shifting is great. I mainly using indexing, but the shifters can be switched to friction, which also works very well. Plus, the derailleurs are dirt cheap. I bought one on eBay for $15, and another off of a guy at a swap meet for $5, which was practically new.
tborner is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lemonbike
Bicycle Mechanics
12
07-27-18 07:53 AM
JoeHigh
Bicycle Mechanics
8
09-08-14 02:57 PM
Thisguy
Bicycle Mechanics
4
05-13-11 07:22 PM
Old Apollo
Bicycle Mechanics
2
07-11-10 09:15 PM
Bikewer
Classic & Vintage
12
07-08-10 12:13 PM

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 or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.