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

New: Take part in the September Giveaway for a Spider Rear Rack and a Heavy Duty Drybag from aeroe


Slippage!
#1
I am a novice bike mechanic and need some of your expert advice. When I ride under, even minimum, pressure the drive train slips until I am pedaling with no forward momentum. Is there a simple solution to this that I am missing???
glrcoach

  Reply
#2
Can you see where the drivetrain is slipping? If your derailleurs are set up correctly ( http://bikeride.com/part/derailleur/ ) then it could be a stretched chain (see: http://bikeride.com/chain-wear/ or http://sheldonbrown.com/chains.html ). Did you change anything?

  Reply
#3
The pedals turn and the chain moves, as it should, but there is no pull on the back wheel cassette. It's an old (10yrs) Saracen MTB which was working fine until this suddenly started doing this. I've cleaned and dismantled the cassette and it looks okay. I wondered if it was a bottom bracket problem? The chain is good.

  Reply
#4
Thanks for the quick reply, Joe.
The pedals turn and the chain moves, as it should, but there is no pull on the back wheel cassette. It's an old (10yrs) Saracen MTB which was working fine until this suddenly started doing this. I've cleaned and dismantled the cassette and it looks okay. I wondered if it was a bottom bracket problem? The chain is good.

  Reply
#5
Sounds like the freehub on the rear wheel may have given out. This is the cylinder that the cassette slides on to. It has the ratchet that allows you to coast, but catches when you pedal. If so, you can try dripping some lube into it as it might just be gummed up.
The other common issue is the chain slipping over the top of the teeth of the cassette, but what you describe doesn't sound like that. Either way, not a bottom bracket issue. That just allow the pedals to rotate.

  Reply
#6
Thanks Dave. Think I agree with you about the freehub. Can you buy and replace or is a new rear wheel the solution?

  Reply
#7
That depends on the hub. If you have a Shimano freehub than you can exchange the freehub bodies. Other brands can sometimes be a bit tricky.

  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
541
08-31-2020, 01:52 AM
Last Post: Jesper
 
9,257
12-23-2013, 04:58 PM
Last Post: cny-man
 
7,083
04-24-2011, 02:54 AM
Last Post: Cbusbikenewb
 
6,029
08-25-2009, 09:12 AM
Last Post: Joe_W
 
8,599
03-31-2009, 03:32 AM
Last Post: aitch

Forum Jump:

[-]
10 Latest Posts
Front Derailer fails to shift to the big...
Today 06:12 AM
Rear V-Brake leaning to one side
Today 02:21 AM
Spin bike question
Yesterday 10:45 AM
90's Raleigh R600
Yesterday 08:11 AM
Where are you from and What is your favo...
09-24-2020 10:58 AM
Hello from Wyoming
09-23-2020 08:52 PM
Saddle Height
09-23-2020 02:58 PM
BIKEDIRECT WAITING
09-23-2020 02:54 PM
Hello from North Carolina
09-23-2020 09:36 AM
Raleigh "Trail" bike
09-23-2020 03:49 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
34 posts
no avatar 2. Papa Dom
12 posts
no avatar 3. Painkiller
11 posts
no avatar 4. G_M
8 posts
no avatar 5. Sagan97
8 posts