Singlespeed chain tensioners

[Daddy Pig]

Evening all

I've recently built up a singlespeed project and have had problems with chain slip when under load. A bit of internet research suggests that this is due to chain being too long, and the tensioner pushing down rather than up. Here's a pic:



I'm confident that components are all ok and chainline is good. I'm also going to shorten the chain as much as I can. Question; is the chain tensioner pictured able to be converted to push up rather than down? The previous s/s I built used an old rear mech and I've never had an issue with that. What do you think?

 

[Abaca]

Been doing this myself and busted my tensioner.
If it's sprung load its probably meant to be the way you have it,seen people running them from the top posistion using a cable tie to secure it,it's an option if your having problems

Like I said I busted my tensioner today actually but I seem to be lucky and have been able to run it without.

 

[Splatter Paint]

Re:

I gave up with that type of chain tensioner due to slipping. Instead i bough a cheap short cage road mech (Ultegra for a fiver!) and put a short bit of cable inner through the mech with the nipple inside the barrel adjuster. With the other end held captive as normal, you can turn the barrel adjuster to alter the chain-line to get it perfect - works a treat!

 

[Rod_Saetan]

Pauls Melvin are/is/am great.

 

[606]

Definitely try taking a link out. That looks pretty slack, so you should be able to take out a whole one, and not bother with half-links.

 

[Daddy Pig]

Thanks all. I think that an old road mech is the way to go with this one. Been a good learning curve though!