New: Take part in the April 2020 Giveaway for a brand new GIORDANO™ bicycle

Welcome guest! Register or sign in to participate in the cycling discussions.


Cassette is stuck on hub
#1
Today I was changing out the cassette on my fairly new mountain bike, no problem with the existing cassette, just changing the gearing. I removed the retainer screw, but I could only remove the first three rings, the rest of the cassette was stuck on. Here is a picture, please tell me what you think. Thanks, Dan
  Reply
#2
Hi Dan;

Is it out of warranty?

toasted freehub body - must be aluminum.

Sorry, you are going to need a new freehub body; something like this: http://www.amazon.com/Shimano-FH-M760-Freehub-Body-Speed/dp/B000F5EGM8/

Get a steel freehub body, the weight reduction of aluminum is definitely not worth it, as your picture show.

Replacing a freehub body is not difficult; here are some instructions:
http://bikemagic.com/gear/how-to/mountain-bike-maintenance/freehub-replacement.html
http://www.parktool.com/blog/repair-help/freehub-service

As far as removing the remainder of the cassette, I would stick the old freehub body in a vice, and tap on the cassette with a hammer and chisel punch to rotate the cogs until they are out of groves that are cut into the aluminum. Do this on the insides of the cogs so as not to damage the teeth.
Nigel
  Reply
#3
Yeah, you can see in the pic how the cassette has dug into the splines of the freehub body. There is a company (forgot which one... Zipp maybe or DT?) who actually has a very light freehub but with steel insets in the splines so that this does not happen. The costs are... astronomical and the weight savings are negligible, but it makes for a good story Wink
And if it is fairly new: go to the shop and let them deal with it. This should be covered by the warranty. Failing that, maybe contacting the bike company directly could also work.
  Reply
#4
Thanks for the help Nigel, that is very helpful. I thought maybe you would say I shouldn't pedal so hard, hah. I will check the warranty, Dan
  Reply
#5
(02-18-2014, 03:10 PM)greenstop Wrote:  Thanks for the help Nigel, that is very helpful. I thought maybe you would say I shouldn't pedal so hard, hah. I will check the warranty, Dan

Hi Dan;

Not likely Smile I have only steel freehub bodies on my bikes, so that I don't run into what happened with yours. The steel ones are less expensive, and more durable. I set up my drivetrains so that the chain is the weakest link - and not be using weak chains Smile . Chains are easy to replace and easy to monitor for wear/stretch.
Nigel
  Reply
#6
Have not seen that before. Yes you need a new steel hub as to getting the sprockets off you need to use a hammer and a drift or a sacrificial large screwdriver and than hit the sprocket a few times to get it back into the notch so you can remove it. Hopefully that is not the case with all the sprockets.
Never Give Up!!!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
16,353
12-12-2011, 07:41 AM
Last Post: Joe_W
 
19,884
06-06-2011, 09:28 PM
Last Post: 1FJEF
 
6,895
03-04-2011, 09:05 AM
Last Post: trevgbb

Forum Jump:

[-]
Ad

[-]
10 Latest Posts
Giordano Bicycles | April 2020
Today 12:38 AM
Wheels too big for frame?
Yesterday 10:56 PM
Hybrid Bike Recommendations?
Yesterday 04:46 PM
Gear shift is stuck!
Yesterday 10:26 AM
Wheels stolen off my Nishiki Performance...
Yesterday 08:55 AM
I am looking to buy a bike but I know no...
Yesterday 07:51 AM
New (soon-to-be) daily commuter
Yesterday 06:28 AM
Hello Im Jorge From Tokyo
Yesterday 06:11 AM
New Cranks and Bottom Brackets (Upgrades...
04-02-2020 02:14 PM
Accessories recommendations for a new co...
04-02-2020 12:26 PM

[-]
Ad

[-]
Top 5 Posters This Month
no avatar 1. G_M
18 posts
no avatar 2. Jesper
15 posts
no avatar 3. CharleyFarley
9 posts
no avatar 4. Sagan97
7 posts
no avatar 5. J_R_Schultz
7 posts