How to measure bike chain (Cyclamatic Power Plus)

bike newbie

Pedelecer
May 8, 2016
25
4
44
UK
I have an old Cyclamatic Power Plus and the chain has come off a few times, from Googling I’ve deduced that I don’t need a special e-bike chain but need a 7 speed chain with enough links.

I counted the links and there were 63, the common size of chain was 114 links so I assumed that each link, with a knobbly bit at either end, counted as 2 link so my chain is 126.

Then I came across this pic and it shows the double piece as one, in that this chain has 117 double pieces?!

Can’t work out if my chain is 63 or 126?!
 

Attachments

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
it is a quick link and you use it to connect the chain together.
 
  • Like
Reactions: bike newbie

bike newbie

Pedelecer
May 8, 2016
25
4
44
UK
it is a quick link and you use it to connect the chain together.
Not sure I follow? The pic on the packaging makes it look like 1 link consists of a piece with two ends - which would make my chain 63 links but that seems very short. If my chain has 63 of the circled part in my photo does that make it 63 or 126?
 

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
no its 117 links and 1 quick link connector
 
  • Like
Reactions: bike newbie

bike newbie

Pedelecer
May 8, 2016
25
4
44
UK
no its 117 links and 1 quick link connector
I understand that, the point of attaching that photo is that it shows *one* link is a piece with 2 knobbly bits. Which would make my chain particularly short at 63 links. Before seeing the pic of the packaging I assumed that my chain was a 126 link chain and that each piece (circled in my pic) was classed as 2 links
 

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
only 1 link is the quick link and there only meant to be used once and replaced if you take the chain off


my chain uses this one but mine is 12spd

so if you made a hole chain out of those it will be 400 quid ;)

 
Last edited:
  • Like
Reactions: bike newbie

bike newbie

Pedelecer
May 8, 2016
25
4
44
UK
Forget the quick link… that’s muddying the waters I think! If my chain has 63 of the things I circled in the photo of my actual chain is that classed as 63 links or 126?!
 

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284


so thats 114 links and one quick link you just need to find a 7spd chain that is long enough
 
  • Like
Reactions: bike newbie

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
63 links would be a bmx size so doubt it ;)
 
  • Like
Reactions: bike newbie

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
  • Like
Reactions: bike newbie

StuartsProjects

Esteemed Pedelecer
May 9, 2021
515
295
Look at the chain between the edges of the red lines you added in the picture.

Your picture shows one full link in the middle of the red box.

And half of a link on the left and half of a link on the right.
 
  • Like
Reactions: bike newbie

bike newbie

Pedelecer
May 8, 2016
25
4
44
UK
Look at the chain between the edges of the red lines you added in the picture.

Your picture shows one full link in the middle of the red box.

And half of a link on the left and half of a link on the right.
I have 63 of the full links within the red box so seems my chain is unusually short?
 

soundwave

Esteemed Pedelecer
May 23, 2015
12,865
5,284
no you count every link the inner and outer ones makes a hole chain.
 
  • Like
Reactions: bike newbie

StuartsProjects

Esteemed Pedelecer
May 9, 2021
515
295
I have 63 of the full links within the red box so seems my chain is unusually short?
No, I said;

"Your picture shows one full link in the middle of the red box.
And half of a link on the left and half of a link on the right."

So within the red box, in chain length terms, you have one full link and two half links = 2 links
 
Last edited:
  • Like
Reactions: bike newbie