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

New: Take part in the June Giveaway for a Foldylock Pride bike lock by Seatylock


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
 
791
06-06-2020, 03:20 AM
Last Post: jonsio
 
4,594
08-10-2014, 01:17 PM
Last Post: cny-man
 
8,029
01-06-2014, 08:23 PM
Last Post: 1FJEF
 
6,397
07-08-2013, 09:39 AM
Last Post: RBurrelli

Forum Jump:

[-]
10 Latest Posts
Road helmet
Today 02:49 PM
How to keep your bicycle safe?
Yesterday 11:58 AM
How often do you use suspension fork loc...
Yesterday 09:53 AM
what is good length for a folding lock?
Yesterday 09:44 AM
Star blubike lube
Yesterday 09:42 AM
It's here! Biking Down a Volcano at 58mp...
Yesterday 09:28 AM
2021 Pro Road Cycling
Yesterday 09:27 AM
Ethical Dilemma
06-18-2021 09:43 PM
Champagnolo Say None of Their Cranksets ...
06-17-2021 08:06 PM
CHANGING 1x8 into 2x8
06-17-2021 01:38 PM

[-]
Top 5 Posters This Month
no avatar 1. ReapThaWhirlwind
46 posts
no avatar 2. Jesper
21 posts
no avatar 3. JoJoJo
11 posts
no avatar 4. Zviedrs
10 posts
no avatar 5. ChaseCal
7 posts