Jump to content


Style of Chain tensioner i used


59 replies to this topic Post Order

#1 Iron

    The One

  • Members
  • 1,837 posts
  • LocationGreenstone

Posted 27 October 2011 - 04:05

This may help some SS guys out there experiencing the same problems I had .
So I kept losing my chain off the rear sprocket and replaced it all with a single speed chain and rings ( this made a huge difference from the geared chain and rings ). But still had a small problem of the chain not running true on the rear tensioner , I have used both spring and static tensioners ( “DaBomb” and DMR type ). The problem is the tensioners did not sit at a true 90degrees to the chain so the chain was scrubbing over the pulleys all the time ( I was not happy with this ).

My personal problem was that my rear dropout / hanger was slightly bent and I did not want to bend it back ( fear of breaking it and not getting a replacement ). So I tried the following ( as shown in the pic ) it’s a Blackspire chain guide used buy the DH and free ride guys .It fits by removing the BB taking out a spacer if you have one in and screwing the bb back to hold it in place , it is also slotted so you can move the pulley up and down I then swopped out the pulley it comes with and fitted the one off the DMR chain tensioner and after a few weeks of use on and off road I am pleased .

Not sure if this is the proper use of the chain guide but has made my SS so smooth . my thoughts to share it with some who may have the same issue one day.

Later

Attached Images

  • Attached Image: photo.JPG

Don't mess with old men, they didn't get old by being stupid.

If you good at something,
Never do it for free.

#2 AndreZA

    Ultimate Hubber

  • Members
  • 1,343 posts
  • LocationJHB west

Posted 27 October 2011 - 04:09

To tell you the truth it look ALOT better then the sitting on the back.
Being happy doesn't mean everything is perfect. It means you've decided to see beyond the imperfections.
---------------------------
“Don't get too comfortable with who you are at any given time - you may miss the opportunity to become who you want to be.” - Jon Bon Jovi

#3 Hairy

    Ultimate Hubber

  • Members
  • 3,102 posts
  • LocationCape Town

Posted 27 October 2011 - 04:11

Nice and clean
All that is necessary for the triumph of evil is for good men to do nothing”…Edmund Burke

#4 Jules

    Ultimate Hubber

  • Members
  • 2,480 posts
  • LocationJohannesburg

Posted 27 October 2011 - 04:34

Good post. I think lots of single speeders struggle with this issue.

#5 Kranswurm

    Ziegoe

  • Members
  • 3,935 posts
  • LocationGaborone

Posted 27 October 2011 - 04:41

What are the advantages or disadvantages over an eccentric BB?
Awake! for Morning in the Bowl of Night
Has flung the Stone that puts the Stars to Flight

#6 CAAD4

    Ultimate Hubber

  • Members
  • 4,600 posts
  • LocationJozi

Posted 27 October 2011 - 04:43

Give that man a Bell...
Pain is a universal language. It requires no translation... CAAD4.

#7 Jules

    Ultimate Hubber

  • Members
  • 2,480 posts
  • LocationJohannesburg

Posted 27 October 2011 - 04:46

View PostKranswurm, on 27 October 2011 - 04:41 , said:

What are the advantages or disadvantages over an eccentric BB?

EBB has less chain friction, because the chain doesn't travel over the extra jockey wheel.

The disadvantage of an EBB is that you change the position of the cranks relative to your saddle every time you adjust your chain. This change is very slight, though, and is not a real impediment.

Those who have ridden all types of single speed are in general agreement that the best method of chain tension is to have sliding vertical dropouts. You can find them on Gary Fisher/Trek, Ragley and Ventana.

#8 Kranswurm

    Ziegoe

  • Members
  • 3,935 posts
  • LocationGaborone

Posted 27 October 2011 - 04:50

View PostJules, on 27 October 2011 - 04:46 , said:

EBB has less chain friction, because the chain doesn't travel over the extra jockey wheel.

The disadvantage of an EBB is that you change the position of the cranks relative to your saddle every time you adjust your chain. This change is very slight, though, and is not a real impediment.

Those who have ridden all types of single speed are in general agreement that the best method of chain tension is to have sliding vertical dropouts. You can find them on Gary Fisher/Trek, Ragley and Ventana.

Cool
But then a quick release is out I presume.
Just weighing up options before the plunge
Awake! for Morning in the Bowl of Night
Has flung the Stone that puts the Stars to Flight

#9 Kranswurm

    Ziegoe

  • Members
  • 3,935 posts
  • LocationGaborone

Posted 27 October 2011 - 04:52

Sorry I misread that.Sliding vertical dropouts? :blink:
Awake! for Morning in the Bowl of Night
Has flung the Stone that puts the Stars to Flight

#10 Hairy

    Ultimate Hubber

  • Members
  • 3,102 posts
  • LocationCape Town

Posted 27 October 2011 - 04:54

I rather like the paragon sliding systems
All that is necessary for the triumph of evil is for good men to do nothing”…Edmund Burke

#11 Jules

    Ultimate Hubber

  • Members
  • 2,480 posts
  • LocationJohannesburg

Posted 27 October 2011 - 04:54

View PostKranswurm, on 27 October 2011 - 04:50 , said:

Cool
But then a quick release is out I presume.
Just weighing up options before the plunge

Quick release is fine for EBB and sliding vertical. It is not really OK for horizontal dropouts. If you can find a bike with sliding vertical dropouts that suits your budget, I strongly recommend it.

Horizontal dropouts are not so cool, because you can't use quick releases, and your disc position will change relative to your brake calliper. With sliding vertical dropouts, your brake calliper will move with the dropout.

#12 Hairy

    Ultimate Hubber

  • Members
  • 3,102 posts
  • LocationCape Town

Posted 27 October 2011 - 04:55

Posted Image
All that is necessary for the triumph of evil is for good men to do nothing”…Edmund Burke

#13 Hairy

    Ultimate Hubber

  • Members
  • 3,102 posts
  • LocationCape Town

Posted 27 October 2011 - 04:55

Posted Image
All that is necessary for the triumph of evil is for good men to do nothing”…Edmund Burke

#14 Jules

    Ultimate Hubber

  • Members
  • 2,480 posts
  • LocationJohannesburg

Posted 27 October 2011 - 04:56

Like this

#15 TNT1

    Bob

  • Forum Managers
  • 23,665 posts
  • Location/b/

Posted 27 October 2011 - 06:02

View Postcaad4, on 27 October 2011 - 04:43 , said:

Give that man a Bell...

You give it to him.

Posted Image

#16 TNT1

    Bob

  • Forum Managers
  • 23,665 posts
  • Location/b/

Posted 27 October 2011 - 06:04

View PostIron, on 27 October 2011 - 04:05 , said:

This may help some SS guys out there experiencing the same problems I had .
So I kept losing my chain off the rear sprocket and replaced it all with a single speed chain and rings ( this made a huge difference from the geared chain and rings ). But still had a small problem of the chain not running true on the rear tensioner , I have used both spring and static tensioners ( “DaBomb” and DMR type ). The problem is the tensioners did not sit at a true 90degrees to the chain so the chain was scrubbing over the pulleys all the time ( I was not happy with this ).

My personal problem was that my rear dropout / hanger was slightly bent and I did not want to bend it back ( fear of breaking it and not getting a replacement ). So I tried the following ( as shown in the pic ) it’s a Blackspire chain guide used buy the DH and free ride guys .It fits by removing the BB taking out a spacer if you have one in and screwing the bb back to hold it in place , it is also slotted so you can move the pulley up and down I then swopped out the pulley it comes with and fitted the one off the DMR chain tensioner and after a few weeks of use on and off road I am pleased .

Not sure if this is the proper use of the chain guide but has made my SS so smooth . my thoughts to share it with some who may have the same issue one day.

Later

Looks like a win. Why don't you chop your hanger?