Drive train Question - 6 speed and 7 speed
11-01-13, 08:27 AM
#1
Senior Member
Thread Starter
Join Date: Sep 2006
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Drive train Question - 6 speed and 7 speed
I am piecing together a bike for a buddy. Its one of those builds where money is an issue and most of the parts will be used.
Does 6 and 7 speed freewheels have the same indexing? I thought they did, but maybe its 5 and 6 that are the same. Right now there is a 7 speed shifter /brake lever with a 6 speed freewheel. There is no way to fit a 7speed freewheel as the axle would be too short to get the wheel nuts on enough.
Does 6 and 7 speed freewheels have the same indexing? I thought they did, but maybe its 5 and 6 that are the same. Right now there is a 7 speed shifter /brake lever with a 6 speed freewheel. There is no way to fit a 7speed freewheel as the axle would be too short to get the wheel nuts on enough.
11-01-13, 08:44 AM
#2
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,800
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1159 Post(s)
Liked 833 Times
in
554 Posts
Perhaps you could add a few washers to the axle to move the locknuts out a bit and make room for a 7 speed freewheel ? Depends on how much free axle you have to work with. And the freewheel would need to spaced to match the shifters. You would likely have to re-dish the wheel a little bit to recenter the rim in the frame.
Indexing is specific to models & brands and year of manufactur, so it is hard to know what will or will not work without specific information.
Indexing is specific to models & brands and year of manufactur, so it is hard to know what will or will not work without specific information.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Last edited by Homebrew01; 11-01-13 at 09:10 AM.
11-01-13, 08:45 AM
#3
Really Old Senior Member
11-01-13, 08:56 AM
#4
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2025 Post(s)
Likes: 0
Liked 1,085 Times
in
733 Posts
No, a 7-speed shifter will not properly index with a 6-speed freewheel. A used bike I bought years ago had just that setup and the original owner couldn't understand why it shifted so poorly.
Thread
Thread Starter
Forum
Replies
Last Post
vintagerando
Bicycle Mechanics
36
02-06-16 12:34 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
