Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Converting 5 speed to 6 speed.

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Converting 5 speed to 6 speed.

Old 08-19-14, 06:36 PM
  #1  
trek330
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: New York City
Posts: 815
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 6 Times in 5 Posts
Converting 5 speed to 6 speed.

I'm interested in changing my back wheel which is 6 speed and 126 spacing to another which has a 5 speed freewheel and since its 5 speed I assume is 120 spacing.Can I put the 6 speed freewheel and spacers on the 5 speed wheel?Both wheels are 27 inch.My 6 speed wheel has a bad hub.
trek330 is offline  
Old 08-19-14, 06:57 PM
  #2  
hueyhoolihan
Senior Member
 
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Posts: 6,681

Bikes: 8 ss bikes, 1 5-speed touring bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
i confess i don't quite understand your question, but if you want to put a 5-speed 120mm spaced freewheel hub on a bike with 126mm spacing, the axle may be too short. if not, you may need spacers. ... i think...
hueyhoolihan is offline  
Old 08-19-14, 07:07 PM
  #3  
noglider 
aka Tom Reingold
 
noglider's Avatar
 
Join Date: Jan 2009
Location: New York, NY, USA
Posts: 40,327

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

Mentioned: 502 Post(s)
Tagged: 0 Thread(s)
Quoted: 7092 Post(s)
Liked 2,005 Times in 1,190 Posts
Why do you want to change the wheel?

Measure the over-locknut-distance (OLD), because it might be 126mm. And if it's 120, you can still use it without modifying the frame. If, for some reason, you just want to run a 5-speed freewheel, you can screw that onto a 126mm hub. Adjust the derailleur and go.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author

Please email me rather than PM'ing me. Thanks.
noglider is offline  
Old 08-19-14, 07:14 PM
  #4  
GravelMN
Senior Member
 
GravelMN's Avatar
 
Join Date: May 2014
Location: Rural Minnesota
Posts: 1,604
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I've done it the other way around, going from 5 to 6 speed, with no modification at all and just a minor adjustment to the hi and low stops on the RD (Schwinn Tourist with friction stem shift).
GravelMN is offline  
Old 08-19-14, 08:19 PM
  #5  
ThermionicScott 
working on my sandal tan
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 22,560

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)

Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
Quoted: 3850 Post(s)
Liked 2,506 Times in 1,545 Posts
I would put 3mm of axle spacers on each side in order to keep the 5-speed wheel centered in the 126mm dropouts. (And, of course, adjust the rear derailleur.)
__________________
Originally Posted by chandltp
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498
ThermionicScott is offline  
Old 08-19-14, 08:35 PM
  #6  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,599

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,349 Times in 856 Posts
Cog cluster that much narrower the hub can shift to the right a bit on the axle & spacer shifting and redishing the rim a bit to re center it between
the axle ends ..

it can be good .. frame remains 126,axle remain the same.. the hubs location on the axle changed..
fietsbob is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bark_eater
Classic & Vintage
47
02-26-18 10:05 AM
Wiggles_dad
Classic & Vintage
18
06-16-14 08:56 AM
avhed
Classic and Vintage Bicycles: Whats it Worth? Appraisals.
7
04-10-14 09:00 PM
coolkat
Bicycle Mechanics
4
03-15-14 05:47 AM
woodenidol
Classic & Vintage
51
04-07-10 01:33 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.