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

New: Take part in the May Giveaway for a Road Electric Bike Hurricane from KBO


Chain slips when backpeddling
#1
I just swapped out some grip shifters for thumb shifters on my kids bike. I think I did a fairly good job at doing the shifting adjustments and the gears seem to shift correctly when peddling. However, if I am in High/Low ( 3 on the front and 1 on the rear) and I backpeddle, the chain on the rear cassette either shifts1 or 2 positions (until I start peddling again) or it shifts and then binds. Back peddling in Mid/Low (2 on the front and 1 on the rear) doesn't cause this problem. I looked at the cassette and saw it had a slight wobble, but after reading numerous posts, that seems to be a fairly normal occurance. I could use some suggestions on what to check or do.

  Reply
#2
If by "High/Low ( 3 on the front and 1 on the rear)" you're referring to the largest chain-ring on the front and the smallest cog in the rear then that's most likely the cause. The chain is being forced sideways. It's not a good idea to use that combo for that very reason. It will cause excessive wear on your drive-train.

  Reply
#3
Actually I was referring to the largest on the front and the largest on the rear. You're right, the chain is slightly sideways by default. Is this a normal occurance in this configuration?

  Reply
#4
I got it a bit confused myself there. Yes, the large/large and also the small/small is a combo you shouldn't use. If you have a triple crank-set on the front then with the middle chain ring you can use all the gears on the rear. Depending on the number of cogs on your rear sprocket you can only use 3 or 4 low gears with the smallest chain ring and 3 or 4 high gears with the largest chain ring.

  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
891
04-27-2020, 03:24 PM
Last Post: Joe_W
 
12,419
06-02-2014, 04:41 PM
Last Post: BingoBilly
 
18,855
10-31-2012, 11:43 AM
Last Post: lupystar
 
10,706
12-30-2010, 11:29 AM
Last Post: sidmarx

Forum Jump:

[-]
10 Latest Posts
I think I might of been a little too has...
Today 02:03 AM
Have you Ever Tried an Electric Bike?
05-09-2021 09:14 AM
2018 Specialized Stumpjumper Comp Alloy ...
05-08-2021 09:31 PM
Schwinn 3rd Avenue 700C hybrid
05-08-2021 02:33 AM
Trek 720 (1997) Drive Train (Crank & Der...
05-07-2021 04:06 PM
Square-Taper BB 68 (1.37 24T) Crank-Arm ...
05-07-2021 01:52 PM
How to Approach Questionable Deals
05-07-2021 01:23 AM
2021 Pro Road Cycling
05-05-2021 01:10 PM
Loose seat stem housing on Trek Madone 9...
05-05-2021 08:53 AM
1962 Varsity - Move Stem Shifters Ok?
05-05-2021 12:40 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
27 posts
no avatar 2. ChaseCal
6 posts
no avatar 3. Stephen111
4 posts
no avatar 4. Papa Dom
4 posts
no avatar 5. JoJoJo
3 posts