Is accurate use of a hanger alignment tool dependent on a true wheel.

[Salty seadog]

I'm thinking of getting one. Tips etc for good use and hanger bending advice welcome and wanted.

 

[Svendo]

Nope, if concerned about wheels trueness or dish just use same point on the wheel for your measurements.

 

[raleighnut]

Rotate the wheel at the same time as the tool so the 'datum point. is in the same place on the rim.

 

[si_c]

Nope not at all, use the valve stem as a point of reference and rotate the wheel.

 

[slowmotion]

Some people say that you don't need an alignment tool. Just use another wheel as one. See post #11 on this thread....

http://forums.mtbr.com/tooltime/diy-hanger-alignment-tool-792778.html

 

[Salty seadog]

Some people say that you don't need an alignment tool. Just use another wheel as one. See post #11 on this thread....

http://forums.mtbr.com/tooltime/diy-hanger-alignment-tool-792778.html

I just take the rear wheel off of my other bike, remove the cassette and screw it into the hanger. Measure the parallelism between the wheels and adjust as needed.

Cannot quite get my head around that.

 

[slowmotion]

I just take the rear wheel off of my other bike, remove the cassette and screw it into the hanger. Measure the parallelism between the wheels and adjust as needed.

Cannot quite get my head around that.

I've never tried it but apparently the female thread on the hanger that takes the rear mech fixing screw is the same as the male thread on a spare wheel. Just remove the rear mech from the hanger to be tested, screw in the spare wheel….and Bob's your uncle....

Post was edited.

 

[fossyant]

Aligning hangers - just be very careful if it's a replaceable one - it's designed to snap off, and aluminium doesn't like being bended straight once bent.

 

[slowmotion]

I just take the rear wheel off of my other bike, remove the cassette and screw it into the hanger. Measure the parallelism between the wheels and adjust as needed.

Cannot quite get my head around that.

YouTube is your friend.
[media]

]View: https://www.youtube.com/watch?v=TnwreRrorIA[/media]

 

[Salty seadog]

YouTube is your friend.
[media]

]View: https://www.youtube.com/watch?v=TnwreRrorIA[/media]

Cheers m'dears. Good idea.

 

[slowmotion]

Cheers m'dears. Good idea.

Delighted, old boy.

 

[fossyant]

Cheers m'dears. Good idea.

Steel bike, steel hangar. Be careful if aluminium.

 

[Salty seadog]

Steel bike, steel hangar. Be careful if aluminium.

Pretty sure mine are all ally so gently bently.....

2 in ally frames 2 in carbon.

 

[Brandane]

You can also use your hanger alignment tool as a guide for truing your wheel.

Used mine for the first time in a long time yesterday after my Croix de Fer loaded with heavy saddlebag for a weekend's touring went over during an embarassing clipless moment. Derailleur mounting point took the weight of the bike and knocked the gears out of alignment. I managed to get some semblance of smoothness back by bending with an allen key stuck into the mounting bolt, but for the last day of my tour the gear changing was not great.

Once back home, 15 minutes spent with the alignment tool and she is sweet as a nut once more. A very handy tool to have in the box.

 

[bpsmith]

Definitely a superb tool to purchase and use regularly. It’s anazing how very small knocks affect shifting quality.

As above, use the same point on a wheel as a reference point, the valve being the most obvious.