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


Tension after coasting
#1
When coasting and you then put the foot down, I'd like there to be an immediate tension on the pedals, but instead there is a tiny free rotation and then the tension kicks in.

would you know what's wrong?
Is it the chain, something else? The chain itself doesn't look too saggy.
Am I in the wrong gear?

I'm new to bike repair, fyi. so any ideas would be good thanks
Replying to myself, the other time you can notice this, is if you back peddle a bit, and then immediatly front peddle. There's a slight 'free wheel' gap between the tension coming back on, compared to what you would expect.
  Reply
#2
There will always be some free motion when switching from coasting to pedalling due to:

* pedal bearings are not infinitely stiff
* BB bearings are not infinitely stiff
* there is a slight gap between the chain roller and the chain ring
* there is a slight gap between each chain pin and roller
* slight gap between the chain roller and the cogs
* the freewheel/freehub pawls require slight motion to engage
* the spokes are not infinitely stiff
* the tire has some compliance.

A Fixie has less free play, but there is still some noticeable.
Nigel
  Reply
#3
After a service I noticed that the free motion was less. I was wondering what was fixed (I didn't mention it to the mechanic to fix).

So are any of the above tunable?
Or was it just pumping the tyre .. which I generally have soft alright ..
  Reply
#4
The bearings are tuneable; except "sealed" BBs

Chains and sprockets are wear items.

Tire pressure is.
Nigel
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
746
06-06-2020, 03:20 AM
Last Post: jonsio
 
4,517
08-10-2014, 01:17 PM
Last Post: cny-man
 
7,991
01-06-2014, 08:23 PM
Last Post: 1FJEF
 
6,334
07-08-2013, 09:39 AM
Last Post: RBurrelli

Forum Jump:

[-]
10 Latest Posts
Is the creaking sound coming from pedals...
Yesterday 02:47 PM
2021 Pro Road Cycling
Yesterday 02:37 PM
Is Presta valve lock nut useful?
Yesterday 02:12 PM
Which gravel bike saddle do you suggest?
Yesterday 07:43 AM
Have you Ever Tried an Electric Bike?
05-16-2021 05:54 PM
1994 Scwinn Crisscross
05-16-2021 09:49 AM
SunTour Freewheel "Perfect" model
05-15-2021 11:48 PM
Looking for a fixed gear bike under $300
05-15-2021 05:36 PM
Biking in the rain
05-14-2021 09:02 AM
COPPI "DALLA LIBERA" 60s FRAME SET
05-14-2021 12:51 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
22 posts
no avatar 2. ChaseCal
7 posts
no avatar 3. Nikko
7 posts
no avatar 4. ManBearPig
5 posts
no avatar 5. Criminal
4 posts