Chain guide as chain tensioner on single speed.

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Chain guide as chain tensioner on single speed.
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flag joshn306
Posted: Oct 29, 2015 at 8:54 Quote
So I ride a specialized hardrock that I have switched to ss, my question is would a chain guide be enough to keep my chain tight instead of using a tensioner? Right now I'm using the "magic ratio" method which works decent but my chain is far to tight, and even with a half link it becomes to lose. Thanks ahead of time for the help.
flag cmc4130
Posted: Oct 29, 2015 at 17:35 Quote
joshn306 wrote:
So I ride a specialized hardrock that I have switched to ss, my question is would a chain guide be enough to keep my chain tight instead of using a tensioner? Right now I'm using the "magic ratio" method which works decent but my chain is far to tight, and even with a half link it becomes to lose. Thanks ahead of time for the help.

Hmmm. Not sure. It seems like it would not work well, just because the angles are wrong--the chain would not be going down to the derailleur. It would be going up to the rear cog.

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Unsecure image, only https images allowed: http://i57.photobucket.com/albums/g212/ScouseMonkey/Bikes/P1010804Medium.jpg
flag joshn306
Posted: Nov 1, 2015 at 11:40 Quote
Awe I see, I didn't even think of that. Thank you!
flag Dremersvision
Posted: Apr 19, 2016 at 8:03 Quote
what is that piece called that the actual tensioner is hooked onto?
flag ricovonsuave
Posted: Nov 14, 2017 at 1:37 Quote
To confirm: Yes, this is possible and can work just fine. I've been using a tensioner on my Yeti ARC to convert it to SS for a year and a half with no issues. Just make sure you can adjust the tension enough with the type of chain guide you're using.

*NB - I used mine to push the chain down, rather than pull it up, to ensure no chainslap to underside of chainstay. It works.*

photo

I used a simple Blackspire BB-mounted one that I had around, and so was able to adjusted the angle down to get it close to the right tension, and then fine-tune it with the fore-aft adjustment of the actual tensioner pulley wheel that this model has (and most do in my experience).

Works a treat, never dropped a chain when I've had the tension right (and perhaps only once even when I had it way too loose due to laziness). Plus it looks weird. Which is good.

Right. Now to go dig some other deceased threads up...
flag allsk8sno
FL
Posted: Nov 14, 2017 at 15:56 Quote
I also have used guide lower roller
I pushed up with mine, looked kinda odd but worked.
flag arwilso4
O+
Posted: Nov 16, 2017 at 23:21 Quote
As a side question does anyone have a good tensioner recommendation? I haven't had one last longer than a year. The spring either gets jacked up when re tightening or it gets ripped off by my chain. Any recommendations would be helpful. It would be going on a 2010 giant STP. Thanks!
flag avatar4281
Posted: Nov 17, 2017 at 9:26 Quote
Trialtech tensioner
Hands down, the best single speed chain tensioner is a Trialtech. Surly is more expensive and doesn't tension nearly as well. The trialtech is very odd to install though, so make sure you read the directions carefully. It's backwards of most tensioners, but that's good for clearance.

Because it's for trials, the only US bike shop that sells them is WebCyclery.
https://webcyclery.com/product/trialtech-single-sided-sprung-tensioner-4576.htm

Note: many trials bikes come with hanger mounts built into the frame, you don't want that, so make sure you get it WITH the hanger mount.
flag arwilso4
O+
Posted: Nov 18, 2017 at 23:00 Quote
That looks sweet! are those upgraded pulleys wheels?
This looks like the same product with a different label... An thoughts?

https://www.universalcycles.com/shopping/product_details.php?id=49134
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