Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


What Freehub body do I have?
#1
I have a 2012 Trek 7.5 Fx Hybrid bike that I need to replace the Freehub body on the rear wheel. There are no identifying marks on this hub anywhere. The cassette that is mounted on the Freehub body is a CS-HG61-9. The gears on the cassette is 11-34 and its a 9 speed. Is there anyway to exactly identify what freebody hub this is so I can get an exact replacement?
  Reply
#2
(01-27-2015, 12:06 PM)MK86GFCS Wrote:  ...... Is there anyway to exactly identify what freebody hub this is so I can get an exact replacement?

Probably not. First remove the freehub, if it is a Shimano you need a 10mm hex key. If that is not the tool for removing it - it is not Shimano, and it may be impossible to source a replacement. If it is a Shimano, any of their "normal" 8/9/10 speed freehubs will fit.


Why do you think that you need to replace the freehub; especially on such a new bike?
Nigel
  Reply
#3
I tried a 10mm hex key and its too small by a couple of mm. It looks more like a spline in there than a hex. Guess I'm out of luck. I was replacing the cassette since the gears I use most are worn out and noticed there is a bit of slop in the freehub. I was going to take care of everything at the same time while I have it apart. Even though its a fairly a new bike I have over 15k miles on it. just normal wear and tear. Thanks
  Reply
#4
(01-27-2015, 02:09 PM)MK86GFCS Wrote:  .... a bit of slop in the freehub. .....

There is always a bit of slop in freehubs, has to be or they would not work. As long as the pawls feel good, and are not making too much noise, leave it.

A little bit of light machine oil helps the pawls, but can hurt the bearings.

Kind of reminds me of the story about when Rolls Royce licensed GM's Turbohydramatic automatic transmission in the late 1950's. The ones GM built worked very well; the first ones RR built would not transmit any torque - the cars would not move. Turns out RR polished everything inside to a bright smooth finish - just like the visible portions of their cars. The torque converter rotor and stator have to be be rough for the fluid to transmit torque......
Nigel
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
3,083
10-01-2022, 05:13 AM
Last Post: Jesper
 
12,273
07-31-2015, 08:34 PM
Last Post: Painkiller
 
59,953
07-14-2013, 05:27 PM
Last Post: Gixxer
 
21,636
05-23-2013, 11:21 AM
Last Post: mmontero
 
10,309
05-08-2013, 11:09 PM
Last Post: nfmisso

Forum Jump:

[-]
10 Latest Posts
Greetings from W.N.Y.
Today 11:27 AM
Removing and refitting rear wheel on bel...
Today 03:21 AM
Best suspension seat post?
Today 01:41 AM
The Best Bike Chain Lubes for Mountain B...
03-07-2025 12:59 AM
Bridgestone Blouson bike.
03-04-2025 03:28 PM
What are the pros and cons of clip-on pe...
03-04-2025 03:15 PM
Where are you from and What is your favo...
03-03-2025 05:10 PM
2011 GT Tachyon upgrade/mod
03-02-2025 01:03 AM
Snow belt cyclist
03-01-2025 10:50 PM
Zwift v Spin v Wahoo
03-01-2025 01:51 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
21 posts
no avatar 2. enkei
16 posts
no avatar 3. Flowrider
12 posts
no avatar 4. meamoantonio
11 posts
no avatar 5. rydabent
9 posts