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Stock Chain Line


Martin Reynolds

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I've got a Born Ultimatum 26" 2011 frame, and running a 128mm bb.

I've recently brought a try-all rear wheel with the try-all 135h hub.

Tarty recommend the try all screw on sprocket because of :

- Designed specifically for the 'H' 135mm hub to give the best chain line.

I'm guessing because the hub has such wide flanges, it needs a sprocket with the teeth in the middle of the sprocket to maintain a decent chain line?

Is the try all sprocket the only one with teeth in the middle? The echo TR one looks like the teeth are in the middle, but the description doesn't say anything.

Any advice would help :)

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wouldn't this be VERY useful information to include on your website? ;)

Thought it would be pretty clear from the photos, but will stick it on the 'to do' list.

I'm running an echo 15t on the slightly older silver tryall hub (i'm sure it's almost exactly the same as an "h") and i had to put a spacer in between the hub and the cog to stop the chain rubbing the spokes. You'll prob need the same ;)

If you run a Z610 HX (which everyone should be :P) then it clears fine - JUST!

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Thought it would be pretty clear from the photos, but will stick it on the 'to do' list.

If you run a Z610 HX (which everyone should be :P) then it clears fine - JUST!

That's exactly what i'm running, and it does rub the spokes without the spacer. It's on a new pure with tryall cranks and echo sl freewheel.

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