Chain Tugs?

wilkij1975
Posts: 532
Hi
I am thinking of getting an On One Scandal which has a slot dropout. I will be running the bike geared and have been adviced to use a chain tug. The problem is I have no idea how a chain tug works.
Can anyone help point me in the right direction or have any photos of one in action that I could look at?
Thanks in advance.
I am thinking of getting an On One Scandal which has a slot dropout. I will be running the bike geared and have been adviced to use a chain tug. The problem is I have no idea how a chain tug works.
Can anyone help point me in the right direction or have any photos of one in action that I could look at?
Thanks in advance.
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Comments
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wilkij1975 wrote:Hi
I am thinking of getting an On One Scandal which has a slot dropout. I will be running the bike geared and have been adviced to use a chain tug. The problem is I have no idea how a chain tug works.
Can anyone help point me in the right direction or have any photos of one in action that I could look at?
Thanks in advance.
Linky to DMR chain tugs HERE
Your axle goes through the hole in the silver bit. The black cap rests against the open end of the dropouts. The screw is captive in the silver bit and passes through a thread in the black cap.
Once it's all assembled, you tighten the screws on the chain tugs and this moves the wheel backwards in the frame until the chain is at the desired tension. You also need to be careful to do this equally at both sides or you'll end up with the wheel out of alignment.
Once everything's tensioned and aligned just lovely, tighten your (wheel) nuts, vicar, to lock the wheel in place.
Designs of chain tug (tensioner) vary from manufacturer to manufacturer but they all work on the same principle.
Another simple way of doing it is to get the axle drilled and tapped to line up with the dropouts and just thread a smaller (typically M5) screw through to rest against the inside of the dropout.0 -
OK think I'm getting it! That onelooks completely different to the one on On One's website.
Do you need one on both sides as On One say only on the drive side?0 -
I suppose that you could get away with just the one, but persoannly I'd want a pair so that you can be sure that the wheel stays properly aligned.0
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Maybe 2 is better for a mtb (I don't know) but certainly for a road fixed gear one is plenty. The Surly tug nut is nice.
Matthew0