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Custom Tensioner Help


DJEHB
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I've seen a fair few running custom tensioners on their inspired's and the like.. I recall Ali talking about it in a video but I can't track it down.

I'm looking to follow suit and thinking a piece of titanium, with some sugru and a nice bend should do the trick?

 

Hoping to hear from someone who has successfully made a tensioner like this, what thickness material did you use? Also any photos would be great!

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it's the video where I build my orange Hex, not sure of the exact name sorry.

I used 1.8mm titanium, any thinner and it didn't give enough tension and any thicker I couldn't bend with hand tools.

It's not Sugru for the slider, it's a polymorph plastic. Basically a plastic (similar to nylon) that comes in pellets and softens in hot water and can be moulded into whatever shape you want. 

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2 minutes ago, Ali C said:

it's the video where I build my orange Hex, not sure of the exact name sorry.

I used 1.8mm titanium, any thinner and it didn't give enough tension and any thicker I couldn't bend with hand tools.

It's not Sugru for the slider, it's a polymorph plastic. Basically a plastic (similar to nylon) that comes in pellets and softens in hot water and can be moulded into whatever shape you want. 

That was it! Thanks Ali, I'll get on the case

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I was thinking this one (tensioner is at 7 mins) though it seems my memory was out and apparently it's 1.2mm sheet rather than 1.8 however if you have a vice I'm sure 1.8mm would work fine.

This summer will be that tensioners 4th birthday!
 

 

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Made the same one as Ali did, from 1.5 mm thick titanium in my case. Wouldn't go any thicker, hard enough to bend as it is. Broke the first one, because my bend was a little too sharp and I went a bit too far with bending. So made the second one with more of an even smooth bend all over. Use power tools or a new very fine blade if you use a hand saw, and a new drill bit, and use cutting fluid, otherwise it's a lot of work to cut.

In the end I went back to the standard dual pulley tensioner. More chain wrap and nothing pulling down on your wheel (thought better safe than sorry with the very delicate I9 freewheel, as tensioning it like this does put some stress on it).

Edited by Daan
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On 1/13/2022 at 10:39 AM, Ali C said:

I was thinking this one (tensioner is at 7 mins) though it seems my memory was out and apparently it's 1.2mm sheet rather than 1.8 however if you have a vice I'm sure 1.8mm would work fine.

This summer will be that tensioners 4th birthday!
 

 

Nice, might try and make something similar for my Adamant as the double wheel sprung tensioner currently fitted it just huge and ugly! 

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