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

New: Take part in the November Giveaway for a Single Speed Cruiser bike from Custom Villy


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
 
5,988
07-31-2015, 08:34 PM
Last Post: Painkiller
 
36,712
07-14-2013, 05:27 PM
Last Post: Gixxer
 
14,306
05-23-2013, 11:21 AM
Last Post: mmontero
 
6,489
05-08-2013, 11:09 PM
Last Post: nfmisso
 
7,195
01-26-2013, 01:29 PM
Last Post: 1FJEF
 
10,337
11-14-2010, 05:10 AM
Last Post: stancho
 
9,508
09-10-2010, 04:52 PM
Last Post: DaveM

Forum Jump:

[-]
10 Latest Posts
Looking for drop handlebars
Yesterday 11:54 PM
Waterford R-33 - Selling Advise
Yesterday 08:26 PM
Is this bike fake?
Yesterday 05:29 PM
Newbie
Yesterday 05:15 PM
FIXIE HELP
Yesterday 12:28 PM
Kids carbon balance bike $1000
12-03-2020 07:21 PM
Finding out how old my shears bike is
12-03-2020 06:37 PM
TREK Y5 FOR SALE
12-03-2020 06:03 AM
Howdy World
12-03-2020 04:49 AM
Hello to All!
12-03-2020 04:29 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
47 posts
no avatar 2. Painkiller
22 posts
no avatar 3. G_M
13 posts
no avatar 4. Nikko
9 posts
no avatar 5. ChaseCal
8 posts