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

Freewheels. More than 7speeds? 34t?

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.

Freewheels. More than 7speeds? 34t?

Old 10-15-20, 02:24 PM
  #1  
Philphine
Senior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 832
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 90 Post(s)
Likes: 0
Liked 16 Times in 14 Posts
Freewheels. More than 7speeds? 34t?

Just wondering. I've never seen more than a 7sp freewheel, or seen a larger big ring beyond 34t. I know there won't be anything like the 11-12speed cassetts with 50t big rings, but have the basic freewwheels become available with more range?
Philphine is offline  
Old 10-15-20, 02:33 PM
  #2  
Cyclist0108
Occam's Rotor
 
Join Date: Jul 2013
Posts: 7,248
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 2,322 Times in 1,157 Posts
Sunrace:

Sunrace Freewheel 8 Speed 13-34 Teeth


Cyclist0108 is offline  
Old 10-15-20, 03:46 PM
  #3  
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Posts: 23,500

Bikes: Several, mostly not name brands.

Mentioned: 136 Post(s)
Tagged: 0 Thread(s)
Quoted: 2947 Post(s)
Liked 1,969 Times in 1,177 Posts
I seem to recall a SunTour freewheel with 38 teeth, but 34 was certainly more common. Freewheels with as many as eight sprockets are still available, but in my experience, anything over seven sprockets unacceptably increases the risk of axle breakage. If you really need more than seven sprockets, use a freehub-based wheel.
JohnDThompson is offline  
Old 10-15-20, 09:44 PM
  #4  
dwmckee
Senior Member
 
dwmckee's Avatar
 
Join Date: Jun 2008
Location: Pittsburgh, PA
Posts: 2,401

Bikes: Co-Motion Cappuccino Tandem,'88 Bob Jackson Touring, Co-Motion Cascadia Touring, Open U.P., Ritchie Titanium Breakaway, Frances Cycles SmallHaul cargo bike. Those are the permanent ones; others wander in and out of the stable occasionally as well.

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 394 Post(s)
Likes: 0
Liked 311 Times in 208 Posts
I believe there are options up to 36 teeth.
dwmckee is offline  
Old 10-15-20, 11:10 PM
  #5  
70sSanO
Senior Member
 
70sSanO's Avatar
 
Join Date: Feb 2015
Location: Mission Viejo
Posts: 4,863

Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970

Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1575 Post(s)
Liked 1,570 Times in 989 Posts
You also need to realize that you can’t just replace the 7 speed freewheel. You will need to add a spacer to the drive side and remove the same amount from the non-drive side to compensate for the wider freewheel.

Depending on the rear hub, there might be wider spacers and you may need to get a number of different widths and mic-n-match to get it correct. You’ll also need to re-dish (re-center) the wherl since the spacers have thrown that off.

John
70sSanO is offline  
Old 10-16-20, 12:33 AM
  #6  
SurferRosa
Señor Member
 
SurferRosa's Avatar
 
Join Date: Dec 2018
Location: Pac NW
Posts: 5,624

Bikes: Old school lightweights

Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 2338 Post(s)
Liked 3,047 Times in 1,655 Posts
Back in my freewheel days, which are now, we used a triple. So no real need to go bigger than 32. And 28 with a double works great until you get to the mountains.
SurferRosa is offline  
Old 10-16-20, 01:45 AM
  #7  
Bonzo Banana
Senior Member
 
Join Date: Feb 2017
Location: Merry Old England
Posts: 764

Bikes: Muddyfox Evolve 200, Bicycles4u Paris Explorer, Raleigh Twenty Stowaway, Bickerton California, Saracen Xile, Kona Hoss Deluxe, Vertigo Carnaby, Exodus Havoc, Kona Lanai, Revolution Cuillin Sport, Dawes Kingpin, Bickerton, NSU & Elswick Cosmopolitan

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked 28 Times in 22 Posts
There are lots of 8 speed or more freewheels but these tend to come from low end manufacturers. You see awful low end mountain bikes and ebikes with 8, 9 speed or even 10 speed cogsets which at first you assume are freehubs and cassettes but turn out to be these low end freewheels. Freewheels wobble due to the poorly aligned threading on many cheap rear threaded rear hubs and the internal threading of these cheap freewheels so can be a nightmare to keep lets say a 3x9 drivetrain with such a component as the tolerances are so tight and with the added wobble they have very poor quality shifting. Some hub motors have much thicker rear axles which are unlikely to bend and so they can have improved shifting compared to the more basic axle that can get slightly bent with use which makes shifting worse again. Personally I find 6 speed freewheels better than 7 speed. They seem to have better more reliable shifting due to requiring the lowest shifting tolerances and even then I prefer them in a 1x configuration to increase shifting reliability again. This is about modern freewheel components though as many classic bikes had higher quality threaded rear hubs and freewheels, before freehubs and cassettes there were many premium high end threaded rear hubs and freewheels.

Also if you have a freewheel with 11-32T on a ebike hub because the ebike hub is also propelling the bike forward wear and tear on the freewheel is far less and less intense too so such freewheels make more sense on a ebike than a conventional bike where they can have short lives and need replacing frequently. Obviously there are many variables, weight and strength of the rider, size of front chainrings etc.

So in summary they are available but personally I wouldn't use them. I'm no bike snob but they are not what I would call a well engineered component and below the acceptable standard for me. I've seen youtube videos where they couldn't even get them shifting reliably in a 1x setup even when they have fitted a higher quality rear derailleur and used fresh high quality cables.

https://www.sjscycles.co.uk/freewheels/
Bonzo Banana is offline  

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 My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.