Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-16-08, 03:43 PM   #1
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 390
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
6 spd freewheel on 7 spd hub?

Can I use a 6 spd Shimano freewheel on a suntour GT hub that originally came on a bike w/a 7 spd freewheel? thanks!
erbfarm is offline   Reply With Quote
Old 09-16-08, 03:50 PM   #2
rhenning
Senior Member
 
Join Date: Apr 2006
Bikes:
Posts: 2,816
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 100 Post(s)
If they are both freewheels then the answer is yes. Roger
rhenning is offline   Reply With Quote
Old 09-16-08, 06:24 PM   #3
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 390
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
I think I read something on SHeldon Brown's site that said a 7 spd hub is not compatible w/ a 6 spd freewheel so that's why I'm asking to make sure
erbfarm is offline   Reply With Quote
Old 09-16-08, 06:51 PM   #4
CACycling
Senior Member
 
CACycling's Avatar
 
Join Date: Feb 2008
Location: Oxnard, CA
Bikes: '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
Posts: 4,565
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
A 7 speed free hub isn't compatible with a 6 speed freewheel. Putting a 6 speed freewheel on a hub that originally had a 7 speed freewheel isn't a problem. I did it myself last Friday. Now if you have indexed shifters that will pose a problem as they must be matched to the number of cogs.
CACycling is offline   Reply With Quote
Old 09-16-08, 07:45 PM   #5
Greenfieldja
Senior Member
 
Join Date: Aug 2007
Location: Belgium
Bikes:
Posts: 1,016
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Not necesarily true

You should be able to use a 6 speed freewheel with 7 speed index, you will however need to adjust the upper limit screw of the derailleur so that seventh click doesnt throw the chain into the spokes. If the rider is using down tube shifters that can be switched to friction mode then he may possibly be able use 6 or 7 speed gear set...though the use of the 7 speed gear set with 6 speed shifters may be limited by how far around the DT shifter will go.
Greenfieldja is offline   Reply With Quote
Old 09-16-08, 07:52 PM   #6
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,282
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
If you have an indexed Suntour system it may not play well with the Shimano freewheel either due to differences in cog spacing.

Friction systems do not suffer from this compatibility problem
Sixty Fiver is offline   Reply With Quote
Old 09-17-08, 12:31 PM   #7
CACycling
Senior Member
 
CACycling's Avatar
 
Join Date: Feb 2008
Location: Oxnard, CA
Bikes: '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
Posts: 4,565
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Greenfieldja View Post
You should be able to use a 6 speed freewheel with 7 speed index.
I've tried that and could never get it adjusted to shift properly. The spacing was a bit off.
CACycling is offline   Reply With Quote
Old 09-17-08, 01:40 PM   #8
erbfarm
Senior Member
Thread Starter
 
Join Date: Aug 2007
Location: Portland, OR
Bikes:
Posts: 390
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
it's just friction shifting on this bike. It originally was a 6 spd freewheel on a 27" wheel but I'm converting to 700c wheels (which originally had the 7 spd freewheel on them) but would like to use the 34t 6spd freewheel that I just picked up for $7 on clist.
erbfarm is offline   Reply With Quote
Old 09-17-08, 02:08 PM   #9
dscheidt
Senior Member
 
Join Date: Jul 2008
Bikes:
Posts: 1,376
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by erbfarm View Post
it's just friction shifting on this bike. It originally was a 6 spd freewheel on a 27" wheel but I'm converting to 700c wheels (which originally had the 7 spd freewheel on them) but would like to use the 34t 6spd freewheel that I just picked up for $7 on clist.
For not much more than that, you can get a Shimano 14-34 7spd free wheel.
dscheidt is offline   Reply With Quote
Old 09-17-08, 09:06 PM   #10
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Bikes: Trek 5500, Colnago C-50
Posts: 9,438
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
If the wheel has a quick release you may have a problem with the axle length, or you may not. Replacement axles are inexpensive anyway.

Al
Al1943 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 05:46 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    get answers from real people!
Click to start entering your question.
I HAVE A QUESTION