Cam MTB - the Cambridge Mountain Bikers' Forum

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  • Wear a helmet. Despite recent advances in medical science, brains still cannot be mended nor replaced.
  • Wear gloves or mitts. Hands often hit the ground first. Cuts and grazes invite infection and a hospital visit.
  • Wear eye protection, it only takes a twig or thorn to lose an eye. Crud catchers are a good idea in mucky weather.
  • When downhilling, for your own protection, allow plenty of space behind the rider in front.
  • Bring a bare minimum emergency tool kit and a spare inner tube.
  • Breakdowns are a bore. Plan not to have any by ensuring your bike is in perfect working order.
  • Punctures are also tedious. You can minimise them by fitting latex tubes, slime tubes or running tubeless tyres.

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Gear Hanger Alignment Tool


After a little crash my gear hanger needs some alignment. Does someone here have an alignment tool for that, and am I so lucky that I may borrow it for a few minutes?

Thanks in advance!
- Jonas

Re: Gear Hanger Alignment Tool

Hi Jonas,
try this

or you could ask a reputable bike shop, if it is a minor tweek, but a serious bend and you are better off replacing it as they tend to crack. For the sake of a few pounds now, it could save you a new Mech, hanger and rear wheel, and a face full of trail.
(voice of experience)

i have used these guys for those awquard hangers in the past.


Re: Gear Hanger Alignment Tool

I didn't know there was a tool for realigning your mech hanger?

Re: Gear Hanger Alignment Tool

Hi Pat, that looks like a hammer. I think that will make it worse.

Yes Clair, such tool exists. And when you know it does you will probably find it useful more often than you thought.

Often un-precise gear shifting is related to a slightly bend gear hanger. Typically when the hanger is unaligned the shifting can be all right in one half of the cassette while it is bad in the other half. It even happens that the shifting (or rather the riders perfect-shifting-OCD ) can be so sensitive to the hanger alignment that new hangers need to be aligned.

It seems like I need to buy such tool for myself. And then you are welcome to borrow it if you now become unsure whether your hanger also need some alignment. Here is a cheap one: (Notice that the picture is in-sufficient. The rear wheel hac to be mounted such that you can align the hanger relative to the rim. Like this:

Re: Gear Hanger Alignment Tool

I did know that but I have always bought a new one!

Re: Gear Hanger Alignment Tool

Hi Jonas
I have one if you want to bring your bike around we could give it a fettle.

Re: Gear Hanger Alignment Tool

Hi Duncan
Sounds great! Maybe you can email me your address and then I will bring my bike. In that email you can also indicate when it will fit with your calender. As long as it is not between 16.00-19.00 (I have two little children) I am quite flexible.