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

Removing a freehub body from a hub that is not spoked up onto a bike, possible?

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.

Removing a freehub body from a hub that is not spoked up onto a bike, possible?

Old 11-16-19, 08:42 AM
  #1  
jambon
Senior Member
Thread Starter
 
Join Date: Jul 2014
Location: Ireland
Posts: 348
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Liked 1 Time in 1 Post
Removing a freehub body from a hub that is not spoked up onto a bike, possible?

Hi ,

I picked up a spare of the hub on my bike to use for parts should the need arise. The need has arisen and I now need to get the freehub off the spare and switch it with the one on the bike.

The problem that I did not foresee is that the spare hub is not spoked up onto a wheel as you would expect. It takes an awful lot of force to turn the hex wrench to remove the freehub body but with having no tyre or rim to hold against it feels near impossible.

I don't see any flat part on the hub that I could use to hold the hub in a vise grip. Mount a cassette and use a chain whip maybe ? Any ideas ? Just buy a new freehub ?
jambon is offline  
Old 11-16-19, 08:58 AM
  #2  
ThermionicScott 
hungry
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 19,369

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

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 2455 Post(s)
Liked 353 Times in 257 Posts
You were wise not to try clamping it in a vise to loosen the freehub bolt. Oftentimes, those are on pretty tight.

The best way I know is to get a spare rim and a few spare spokes, and lace up the drive-side flange to said rim. It doesn't have to be a professional job, just so that you can hold onto the rim while turning the hex wrench.
__________________
Originally Posted by chandltp View Post
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 online now  
Old 11-16-19, 09:03 AM
  #3  
DOS
Senior Member
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 1,950
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked 31 Times in 27 Posts
What kind of hub? Different models require different combinations of wrenches to remove but often you can use two wrenches to exert counterforce. I have never had a problem removing a freehub from an unbuilt hub.
DOS is offline  
Old 11-16-19, 09:26 AM
  #4  
dsbrantjr
Senior Member
 
dsbrantjr's Avatar
 
Join Date: Sep 2010
Location: Roswell, GA
Posts: 6,571

Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 798 Post(s)
Likes: 0
Liked 124 Times in 105 Posts
You might try using a rubberized strap wrench such as used on chromed plumbing fittings to hold the hub. https://smile.amazon.com/s?k=strap+w...bnav_search_go
dsbrantjr is offline  
Old 11-16-19, 09:33 AM
  #5  
CliffordK
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 23,506
Mentioned: 182 Post(s)
Tagged: 0 Thread(s)
Quoted: 9734 Post(s)
Liked 312 Times in 247 Posts
The first question is whether at least a minimal amount of damage is acceptable. Scrapping anything that isn't useful?

I've removed a couple successfully, and was unsuccessful with at least one. I think I basically wrapped the hub with an inner tube, then put it in a vise and removed the hex screw.
CliffordK is offline  
Old 11-16-19, 09:59 AM
  #6  
mackgoo
Senior Member
 
mackgoo's Avatar
 
Join Date: Mar 2017
Location: San Clemente
Posts: 307

Bikes: 87 Bianchi X4, 96 Bianchi Ti Mega Tube, 06 Alan Carbon Cross X33

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 9 Times in 7 Posts
Without actually seeing what you're trying to do. How about a chain wrench, no cogs? A strap wrench?
mackgoo is offline  
Old 11-16-19, 10:03 AM
  #7  
dedhed
SE Wis
 
dedhed's Avatar
 
Join Date: Apr 2005
Location: Milwaukee, WI
Posts: 5,320

Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400

Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 782 Post(s)
Liked 130 Times in 101 Posts
+1 on a strap wrench
dedhed is offline  
Old 11-16-19, 10:25 AM
  #8  
cyccommute 
Mad bike riding scientist
 
cyccommute's Avatar
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 21,697

Bikes: Some silver ones, a red one, an orange one and a few titanium ones

Mentioned: 103 Post(s)
Tagged: 1 Thread(s)
Quoted: 2766 Post(s)
Liked 214 Times in 161 Posts
Get an axle vise. You clamp the threads of the axle in the vise and can work on the rest of the hub. It costs about what a strap wrench would cost and you can use it on wheels as well. It makes working on cones a dream.
__________________
Stuart Black
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
cyccommute is offline  
Likes For cyccommute:
Old 11-16-19, 10:29 AM
  #9  
CliffordK
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 23,506
Mentioned: 182 Post(s)
Tagged: 0 Thread(s)
Quoted: 9734 Post(s)
Liked 312 Times in 247 Posts
Originally Posted by cyccommute View Post
Get an axle vise. You clamp the threads of the axle in the vise and can work on the rest of the hub. It costs about what a strap wrench would cost and you can use it on wheels as well. It makes working on cones a dream.
The axle is the first thing to remove when removing a Shimano type freehub.
CliffordK is offline  
Old 11-16-19, 10:38 AM
  #10  
davidad
Senior Member
 
Join Date: Feb 2009
Posts: 5,946
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 348 Post(s)
Likes: 0
Liked 25 Times in 23 Posts
Originally Posted by cyccommute View Post
Get an axle vise. You clamp the threads of the axle in the vise and can work on the rest of the hub. It costs about what a strap wrench would cost and you can use it on wheels as well. It makes working on cones a dream.
Exactly how do you get an allen wrench into a hub with an axle installed?
davidad is offline  
Old 11-16-19, 11:26 AM
  #11  
DOS
Senior Member
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 1,950
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked 31 Times in 27 Posts
Originally Posted by davidad View Post
Exactly how do you get an allen wrench into a hub with an axle installed?
Depends on make of the hub, which we donít know.
DOS is offline  
Old 11-16-19, 11:50 AM
  #12  
rccardr 
aka: Dr. Cannondale
 
rccardr's Avatar
 
Join Date: Jul 2009
Posts: 5,577

Bikes: Lots. Just...lots.

Mentioned: 163 Post(s)
Tagged: 0 Thread(s)
Quoted: 1123 Post(s)
Liked 92 Times in 68 Posts
Install a cog, or even an entire cassette, use a chain whip to hold the hub down and keep the freehub from rotating, then remove the freehub using your allen wrench. Should work on Shimano freehubs, perhaps not others...
__________________
Hard at work in the Secret Underground Laboratory...
rccardr is offline  
Old 11-16-19, 11:52 AM
  #13  
jambon
Senior Member
Thread Starter
 
Join Date: Jul 2014
Location: Ireland
Posts: 348
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Liked 1 Time in 1 Post
Originally Posted by DOS View Post
Depends on make of the hub, which we donít know.

Thanks for the ideas , Shimano FH-RM30 , ill try get another hex key in the opposite side if I can find one that fits haven't tried that yet
jambon is offline  
Old 11-16-19, 12:21 PM
  #14  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,074

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 777 Post(s)
Liked 80 Times in 61 Posts
RM-30 takes a 10mm hex Wrench on the FH side.
Depending on what hub you want to switch to, it may not work. It uses a totally different spline arrangement than the "older" hubs.
Compare yours to an an older with these docs.
Attached Files
File Type: pdf
FH-RM30-8S.PDF (299.2 KB, 9 views)
File Type: pdf
FH-M475.PDF (857.6 KB, 2 views)
Bill Kapaun is offline  
Old 11-16-19, 05:48 PM
  #15  
Slightspeed
Senior Member
 
Slightspeed's Avatar
 
Join Date: Apr 2017
Location: Los Angeles, CA
Posts: 1,830

Bikes: 1961 Legnano Gran Premio, 1964 Legnano Roma Olympiade, 1973 Raleigh Super Course, 1978 Raleigh Super Course, 1978 Peugeot PR10, 2002 Specialized Allez, 2007 Specialized Roubaix, 2013 Culprit Croz Blade

Mentioned: 57 Post(s)
Tagged: 0 Thread(s)
Quoted: 565 Post(s)
Likes: 0
Liked 246 Times in 153 Posts
I got a free spare set of large flange Campy hubs with a bike buy, and the spokes were cut on the freewheel side. So far I haven't needed it, but someday it needs to come apart. I was considering a vice with wood protectors, but the old rim and spokes deal is probably smarter, providing I can get the spokes threaded into the drive side.

Slightspeed is online now  
Old 11-16-19, 05:55 PM
  #16  
mpetry912 
aged to perfection
 
mpetry912's Avatar
 
Join Date: Jun 2009
Location: PacNW
Posts: 400

Bikes: Dinucci Allez 2.0, Richard Sachs, Alex Singer, Serotta, Masi GC, Raleigh Pro Mk.1, Hetchins, etc

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 178 Post(s)
Liked 96 Times in 72 Posts
on those hi flange hubs you can set up something in your vise to pick up the flange holes. No need to re-lace it.

Be sure to do all of the "best shop practice" stuff on the freewheel first - PB Blaster or Aero Kroil, and maybe even a little heat (heat gun)

and then jig the thing in your vice and have at it.

Mark Petry
Bainbridge Island, WA USA
mpetry912 is offline  
Old 11-16-19, 06:05 PM
  #17  
mackgoo
Senior Member
 
mackgoo's Avatar
 
Join Date: Mar 2017
Location: San Clemente
Posts: 307

Bikes: 87 Bianchi X4, 96 Bianchi Ti Mega Tube, 06 Alan Carbon Cross X33

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 9 Times in 7 Posts
I don't understand. Why can't you loosen the nuts on each side, loosen the lock nuts screw of the cone nuts, pull out the axle and pull of the hub body?
mackgoo is offline  
Old 11-16-19, 06:13 PM
  #18  
mackgoo
Senior Member
 
mackgoo's Avatar
 
Join Date: Mar 2017
Location: San Clemente
Posts: 307

Bikes: 87 Bianchi X4, 96 Bianchi Ti Mega Tube, 06 Alan Carbon Cross X33

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 9 Times in 7 Posts
Originally Posted by Bill Kapaun View Post
RM-30 takes a 10mm hex Wrench on the FH side.
Depending on what hub you want to switch to, it may not work. It uses a totally different spline arrangement than the "older" hubs.
Compare yours to an an older with these docs.
This is the way.
mackgoo is offline  
Old 11-16-19, 06:29 PM
  #19  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,074

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 777 Post(s)
Liked 80 Times in 61 Posts
Originally Posted by mackgoo View Post
I don't understand. Why can't you loosen the nuts on each side, loosen the lock nuts screw of the cone nuts, pull out the axle and pull of the hub body?
You still have to remove the fixing bolt which is the whole point of this thread.
How do you keep the hub secure?
Bill Kapaun is offline  
Old 11-16-19, 06:40 PM
  #20  
mackgoo
Senior Member
 
mackgoo's Avatar
 
Join Date: Mar 2017
Location: San Clemente
Posts: 307

Bikes: 87 Bianchi X4, 96 Bianchi Ti Mega Tube, 06 Alan Carbon Cross X33

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 9 Times in 7 Posts
Use the 10 mm allen, loosening works against the pawls.
mackgoo is offline  
Old 11-16-19, 07:07 PM
  #21  
jambon
Senior Member
Thread Starter
 
Join Date: Jul 2014
Location: Ireland
Posts: 348
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Liked 1 Time in 1 Post
Thanks for the ideas above , just to be clear ; the how to of removing this particular freehub is not the problem. The issue is that the hub is not spoked up to a wheel and so it is very difficult to find a way to hold the hub still while applying the force on the wrench(possibly with an extension bar). There is no recess on the opposite side for a hex wrench to work as a counter force.
jambon is offline  
Old 11-16-19, 07:16 PM
  #22  
DOS
Senior Member
 
DOS's Avatar
 
Join Date: Feb 2008
Location: Arlington, VA USA
Posts: 1,950
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked 31 Times in 27 Posts
Originally Posted by jambon View Post
Thanks for the ideas above , just to be clear ; the how to of removing this particular freehub is not the problem. The issue is that the hub is not spoked up to a wheel and so it is very difficult to find a way to hold the hub still while applying the force on the wrench(possibly with an extension bar). There is no recess on the opposite side for a hex wrench to work as a counter force.
Maybe try putting the handle of the hex wrench in a vice then slide the hub on to the wrench and turn the hub with your hands (gloves for better grip) Kind of like opening a pickle jar.
DOS is offline  
Old 11-16-19, 08:19 PM
  #23  
trailflow1
Senior Member
 
Join Date: Jan 2015
Posts: 388
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 107 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
a homemade rubber strap wrench with a inner tube and trouser belt ?
trailflow1 is offline  
Old 11-16-19, 08:49 PM
  #24  
mpetry912 
aged to perfection
 
mpetry912's Avatar
 
Join Date: Jun 2009
Location: PacNW
Posts: 400

Bikes: Dinucci Allez 2.0, Richard Sachs, Alex Singer, Serotta, Masi GC, Raleigh Pro Mk.1, Hetchins, etc

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 178 Post(s)
Liked 96 Times in 72 Posts
I thought about this and I can think of a way that will work.

remove the axle and bearings.

get 2 oak blocks, drill a hole that is the size of the hub center body in the middle of the two pieces so you have a way to clamp the hub into your vice.

you can tape up the hub if you want to prevent scuffing. tighten down to beat HECK.

then take the 10 mm allen (which I think is the tool for the freehub attach nut), put it in the hub.

Get an air powered impact wrench and break the nut loose.

I think you need the peak torque and shock impact to break it loose.

Strap wrench / inner tubes etc probably not going to work.

that's the way I'd do it

Mark Petry
Bainbridge Island, WA USA
mpetry912 is offline  
Old 11-16-19, 09:12 PM
  #25  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 11,074

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 777 Post(s)
Liked 80 Times in 61 Posts
Originally Posted by mpetry912 View Post
I thought about this and I can think of a way that will work.

remove the axle and bearings.

get 2 oak blocks, drill a hole that is the size of the hub center body in the middle of the two pieces so you have a way to clamp the hub into your vice.

you can tape up the hub if you want to prevent scuffing. tighten down to beat HECK.

then take the 10 mm allen (which I think is the tool for the freehub attach nut), put it in the hub.

Get an air powered impact wrench and break the nut loose.

I think you need the peak torque and shock impact to break it loose.


Strap wrench / inner tubes etc probably not going to work.

that's the way I'd do it

Mark Petry
Bainbridge Island, WA USA
Not necessary! IF it's clamped decently, it doesn't take that much force. (China built)

This is all pretty moot, since there are few parts that are interchangeable to this VERY LOW COST hub.
I built a couple wheels using this hub because of price.
They all eat the poorly finished DS cone.
Bill Kapaun is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.