Chain tensioners

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12/11/2015 9:50 AM

Does anyone use them? I know it's more of a race item, but ever since I used one on my last bike, it made adjusting the rear wheel a breeze. No more wheel slippage and it gives me piece of mind knowing that the back wheel is likely to not slip in the dropouts.

I get the feeling that a lot of people ride with their wheel slammed and adjust the chain to length. But for those using tensioners, what are you using? I can;t seem to find a pair that will fit 14mm axles AND a micro dropout.

These two products don't work at all with the Fit Hartbreaker. Even my Duff, I had to cut one in half and grind out the ridges.
https://www.danscomp.com/products-PARTS/440108/Promax_C1_Chain_Adjusters.html
https://www.danscomp.com/products-PARTS/440040/Poverty_Short_Stop_Chain_Adjuster.html

The only thing that looks like it might fit are the Demolition ones but $20 is too much to gamble.

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12/11/2015 10:46 AM

Here. https://www.storenvy.com/products/1129074-simple-bmx-wheel-slammer

If tensioners don't work you can buy/make these.

Tensioners in the back slammers in the front. All day.

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12/11/2015 10:59 AM

Hmmm, these don't really make any sense. That gap between the end of the dropout and the axle is always going to change due to chain stretch. Might as well just slam the axle then. I appreciate the thought tho.

Why do u use these in the front wheel?

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12/11/2015 11:06 AM

johnduff86 wrote:

Hmmm, these don't really make any sense. That gap between the end of the dropout and the axle is always going to change due to ...more

Eliminates slop in the front wheel, doesn't sound like a big deal if you work on your bike upside down without a bikestand right. Yeah chain stretch does the same thing to tensioners, you can just readjust them.

If you slam the axle then you have to cut your chain every time you need to take your wheel off.

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12/11/2015 12:39 PM

Right that's why I don't want to slam the axles. But those slammer washers, am I missing something? So I measure the gap, buy the appropriate size washer, then after a week/month, my chain stretches, now I need a bigger slammer washer and I need to go out and buy a bigger one?

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12/11/2015 4:14 PM

johnduff86 wrote:

Right that's why I don't want to slam the axles. But those slammer washers, am I missing something? So I measure the gap, buy ...more

Buy something like a KMC 710 (the regular 710) and they don't stretch all that much, and pretty much stop after they've been ridden for a month or two. Right now I have a shadow conspiracy supreme chain on my bike, it doesn't strecth. The slammers are essentially for preventing you from throwing your chain after a heavy landing or if your tire slips, just like chain tensioners. Chain tensioners just have the added bonus of helping with rearend alignment. Alot of the guys who run two pegs only run one tensioner on the drive side.

What kind of chain do you have?

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12/11/2015 4:53 PM

Nwewinit wrote:

Eliminates slop in the front wheel, doesn't sound like a big deal if you work on your bike upside down without a bikestand ...more

What do you mean by cut the chain? I just have to slide the pin out of the half-link or if I had a master-link chain I would take that off.

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12/11/2015 5:45 PM

johnduff86 wrote:

Hmmm, these don't really make any sense. That gap between the end of the dropout and the axle is always going to change due to ...more

Nwewinit wrote:

Eliminates slop in the front wheel, doesn't sound like a big deal if you work on your bike upside down without a bikestand ...more

motogrizz wrote:

What do you mean by cut the chain? I just have to slide the pin out of the half-link or if I had a master-link chain I would ...more

Thats what i mean by cutting the chain.

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5/9/2016 11:49 AM

I am still on the hunt, determined to find chain tensioners that work with micro dropouts. I picked up a pair of these, hoping that if I cut the end hole off they will work. We will see.
http://redlinebicycles.com/parts/chain-tensioners/

I noticed this guy has a nice looking chain adjuster. Anyone know what this is?
Photo from googling "FBM Steadfast".
Photo

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5/9/2016 12:03 PM

https://www.danscomp.com/products/440063/Steel_Steel_Tensioner.html

They're two dollars, and will probably work if you have 3/8" bolts
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5/9/2016 12:11 PM

you're going to have to try much harder than that. I have 14mm axles and those won't work at all. Even if I drill them. Too much distance between the hole and the closest (most closed) position of the stopper.

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1/15/2020 8:11 AM

Anyone know if it's possible to find chain tensioners for a mid school Schwinn race bike? I have a 2000 Schwinn Predator FW and I'm rebuilding it and can't find any of those style chain tensioners anywhere.

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