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SS Chain Tensioning - What's Best?


Dirtbreath

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  • Replies 67
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  • 3 weeks later...
Posted

Check this out ... copied and pasted from some other chap on another thread

 

I think mine takes the cake. Apologies for not having a picture with a single cog on there, I didn't have time to remove the cassette before i got overly excited and had to start taking pictures. The system is a few seperate parts, all based around the lack of a deraileur hanger on my frame thanks to a misplaced sidehop... The QR nut is replaced with one of my own design which allows the tension arm to hang off and pivot up or down to adjust tension. The arm is locked in place with a couple of set screw and has yet to loosen itself as the slackening of the chain works to tighten the system up again. The idler pully has an adjustable chainline on it, and could theoretically be used to switch between two or three different gears if you felt like busting out the allen keys. Whole thing was made over the course of a day by myself out of necessity to ride and unavailability of Planet-X parts over here.

 

http://photo.pinkbike.com/photo/395/pbpic395336.jpg

Posted

An interesting one....

 

there's some good ones up, especially the spoon http://ficdn.mtbr.com/images/smilies/thumbsup.gif

 

here's my addition, frankentensioner.. shimano acera canti brake arm with a fully functional tensioning mechanismhttp://ficdn.mtbr.com/images/smilies/cornut.gif

http://img.photobucket.com/albums/v190/frwinks/misbike/IMG_6239.jpg

 

http://img.photobucket.com/albums/v190/frwinks/misbike/IMG_6241.jpg

Posted

:)

This tensioner is on my trials bike and works great. It is made from sheet metal, hacksaw blade, and a piece of PVC pipe. Super lite, super simple, super strong. http://ficdn.mtbr.com/images/smilies/wink5.gif

http://i3.photobucket.com/albums/y63/toyota200x/Whole%20Bikes/IMG_1946.jpg

Posted

more ....

Well, here's my addition. My bike came with a homemade setup that simply clamped in the skewer like many on here, but the problem was it was flimsy and would eventually creep up and lose tension. I had to adjust it several times during a ride and it got annoying, so I decided to fix the problem. I took a small piece of flat bar stock from Home Depot, got a nice stainless steel allen head bolt and a couple nuts. I made the tensioner same as many on here, but on the bottom I welded one of the nuts on so that I could thread the bolt through, put a second nut on as a jam nut and here is the result. It's clean, super light and cost me less than $5. I took it out this morning and beat on the bike for over an hour and never had to readjust. It works perfectly.

http://ficdn.mtbr.com/images/misc/paperclip.png Attached Thumbnailshttp://fcdn.mtbr.com/attachments/singlespeed/540943d1359601749t-pics-homebrew-chain-tensioners-bike3.jpg

 

http://fcdn.mtbr.com/attachments/singlespeed/540944d1359601749t-pics-homebrew-chain-tensioners-bike2.jpg

 

http://fcdn.mtbr.com/attachments/singlespeed/540945d1359601749t-pics-homebrew-chain-tensioners-bike5.jpg

Posted

some ti loving

well i know it's probably cheating, but i did in fact make it at home.

It has a buch of index points to set the initial position, and it has a titanium flex plate to fill the gap, instead of using a spring. The pulley setup is pretty similar to the surly.

The index plate is also titanium, and it has a pin that rests against the deraileur stop on the hanger to keep it from moving. It can be used in either push up or pull down mode.

I can probably loose another 10g on it if i wanted to, maybe even 20g.

http://www.homebrewedcomponents.com/ti%20tensioner%20scale.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20bike%20side.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20rear%20view.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20granite.jpg

  • 1 month later...
Posted

some ti loving

well i know it's probably cheating, but i did in fact make it at home.

It has a buch of index points to set the initial position, and it has a titanium flex plate to fill the gap, instead of using a spring. The pulley setup is pretty similar to the surly.

The index plate is also titanium, and it has a pin that rests against the deraileur stop on the hanger to keep it from moving. It can be used in either push up or pull down mode.

I can probably loose another 10g on it if i wanted to, maybe even 20g.

http://www.homebrewedcomponents.com/ti%20tensioner%20scale.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20bike%20side.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20rear%20view.jpg

http://www.homebrewedcomponents.com/ti%20tensioner%20granite.jpg

 

Wow!, looks very nice! Love the simplicity!

Posted

Wow!, looks very nice! Love the simplicity!

Check out paragon sliders if you like simplicity....also you get a nice clean chain line, which any SS just loves looking at

Posted

Check out paragon sliders if you like simplicity....also you get a nice clean chain line, which any SS just loves looking at

 

How about these...

 

Posted

Check out paragon sliders if you like simplicity....also you get a nice clean chain line, which any SS just loves looking at

 

Ok, point made. I agree: paragon sliders is better but thats a whole new frame. But from the tensioners I have seen, this is very nice. The fact that the connecting arms acts as the spring device is what stood out for me.

Posted

Ok, point made. I agree: paragon sliders is better but thats a whole new frame. But from the tensioners I have seen, this is very nice. The fact that the connecting arms acts as the spring device is what stood out for me.

 

I will let you know soon if you really need a new frame.... my slider kit is on it's way to me..... next step is to do some cutting, fitting and welding....

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