Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-27-09, 04:03 PM   #1
mataggart
Newbie
Thread Starter
 
Join Date: Oct 2009
Bikes: Felt Z15, Trek 5200
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Dura Ace 7900 Cassette Slipping

Hi,

I just installed a dura ace 10sp cassette on an easton ea90 slx wheel with a shimano free hub. When I start to pedal, there is a slight slip in the cassette. While I'm pedaling, everything's OK, but when I stop pedaling (coast) and start pedaling again, the slight slip occurs again. Any clues?

Thanks,
Angus
mataggart is offline   Reply With Quote
Old 10-27-09, 04:29 PM   #2
zeo_max
Senior Member
 
zeo_max's Avatar
 
Join Date: Jan 2009
Location: Alabama, boy !
Bikes: FUJI Nevada 1.0 2009
Posts: 863
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like the same problem I'm having on my FUJI MTB. In my case it's the freehub not grabbing when you start pedaling. The bike shop is having trouble removing the damaged freehub.

I would have imagined that with high end components such as Dura-Ace you wouldn't encounter such problems, guess not.
zeo_max is offline   Reply With Quote
Old 10-27-09, 04:33 PM   #3
bikeman715
Senior Member
 
bikeman715's Avatar
 
Join Date: Mar 2008
Location: Salinas , Ca.
Bikes: Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others
Posts: 2,419
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
the freehub needs to be replace. one of it pawn inside is broken.
bikeman715 is offline   Reply With Quote
Old 10-27-09, 04:44 PM   #4
zeo_max
Senior Member
 
zeo_max's Avatar
 
Join Date: Jan 2009
Location: Alabama, boy !
Bikes: FUJI Nevada 1.0 2009
Posts: 863
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bikeman715 View Post
the freehub needs to be replace. one of it pawn inside is broken.
Yeah that's a real b****. Does this happen frequently ? Anything in particular that causes it ?
zeo_max is offline   Reply With Quote
Old 10-28-09, 10:25 AM   #5
DMF 
Elitist Troglodyte
 
DMF's Avatar
 
Join Date: Jun 2006
Location: Dallas
Bikes: 03 Raleigh Professional (steel)
Posts: 6,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by zeo_max View Post
I would have imagined that with high end components such as Dura-Ace you wouldn't encounter such problems, guess not.
To the contrary. DA and other other high-end stuff pushes the engineering envelope to reduce weight. If anything, it tends to be higher maintenance and more fragile than other groups.
__________________
Stupidity got us into this mess - why can't it get us out?

- Will Rogers
DMF is offline   Reply With Quote
Old 10-28-09, 12:58 PM   #6
BikeWise1
30 YR Wrench
 
BikeWise1's Avatar
 
Join Date: Aug 2005
Location: Oxford, OH
Bikes: Waterford R-33, Madone 6.5, Trek 520
Posts: 2,006
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by zeo_max View Post
I would have imagined that with high end components such as Dura-Ace you wouldn't encounter such problems, guess not.
It is not the cassette's fault that the (not Dura Ace) freehub body it was installed on was bad....

The freehub just needs flushed out and relubed. That will likely make it all better...
BikeWise1 is offline   Reply With Quote
Old 10-28-09, 01:15 PM   #7
bikinfool
I have senior moments...
 
bikinfool's Avatar
 
Join Date: Oct 2008
Location: Woodside, CA
Bikes: Many
Posts: 2,152
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Some Shimano freehubs have had problems, but generally they're quite reliable. Not very serviceable, but fairly reliable. How do you equate the EA90 SLX with Dura-Ace? (ps never mind, forgot the title of the thread).

Doubt it's even a Shimano freehub on that wheel anyways...maybe Shimano compatible like the copy says http://www.eastonbike.com/PRODUCTS/W..._ea90_slx.html
bikinfool is offline   Reply With Quote
Old 11-04-09, 12:14 PM   #8
mataggart
Newbie
Thread Starter
 
Join Date: Oct 2009
Bikes: Felt Z15, Trek 5200
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks everyone for the input. I took the wheel into my LBS and the mechanic said that it's most likely one of the pawls not engaging properly. He is going to try relubing, be he's guessing that we will probably need to send it back to Easton.
mataggart is offline   Reply With Quote
Old 11-04-09, 11:05 PM   #9
frdfandc
Member
 
Join Date: Mar 2008
Bikes:
Posts: 38
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The mechanic is correct. The freehub needs to be cleaned and relubed with either the Easton freehub lube, or the Phil Wood Tenacious oil (yes its a real oil).

The lubricant gums up in wheel sets that have been sitting in storage for a while. Specifically wheels that are in a warehouse.

I just went through this with a customer a few weeks ago. Lots of cleaning, re-lubing with the Easton freehub lube and problem solved.
frdfandc is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 07:38 AM.