Author Topic: Wheel Truing - Are the hubs central to the Rims (400f)  (Read 1448 times)

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Offline Sharpy

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Wheel Truing - Are the hubs central to the Rims (400f)
« on: December 04, 2013, 04:12:58 AM »
Hi All,

Planning on starting the strip down of my wheels soon to replace the spokes but I have a quick question, are the hubs centered to the rim or is there any offset?  I will also measure the distances before I take the wheels off but thought a quick question wouldn't hurt.

Cheers

Sharpy

Offline Powderman

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #1 on: December 04, 2013, 07:14:30 AM »
They may not be exactly centered. It s not uncommon to be off by a small amount. Why not check what they are before disassembling them to see in your particular case?

Offline lucky

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #2 on: December 04, 2013, 07:25:49 AM »
Do not worry about that.
If you lace up a standard rim to your hub with the correct spokes it will be lined up properly.

There is a misconception that you can change the position of the hub from left to right by somehow adjusting the spokes.
That is not true.

When you order your spokes you will get inside spokes and outside spokes.
Look at the ends that go through the hub and how they fit into the hub and you will see what I mean.

Offline CB750R

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #3 on: December 04, 2013, 08:03:25 AM »
My experience is only with bicycle wheels, and it's called dish, if you uniformly tighten one side more than the other the rim will be dished to that side.  If you tighten your spokes evenly and have the right length you should be all right. I used to build wheels as a bicycle mechanic, but never laced a motorcycle wheel.

Offline Powderman

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #4 on: December 04, 2013, 08:53:04 AM »
Do not worry about that.
If you lace up a standard rim to your hub with the correct spokes it will be lined up properly.

There is a misconception that you can change the position of the hub from left to right by somehow adjusting the spokes.
That is not true.

When you order your spokes you will get inside spokes and outside spokes.
Look at the ends that go through the hub and how they fit into the hub and you will see what I mean.
If you tighten all the left side spokes it will draw the hub to the right and leave the right side spokes longer. I don't think you are correct in your statement.

Offline Bodi

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #5 on: December 04, 2013, 05:02:48 PM »
The rims should be centred on the hub. You can indeed offset the wheel a bit but it will be obvious that one side's spokes are sticking up more than the other, and a little bit of offset won't matter anyway. A slight offset means quite a bit of spoke length difference. Just do the initial loose "tightening" of the spoke nipples so that they are all about the same depth. Then proceed with truing and tightening, it will already be fairly close to true if you start with all the spoke nipples evenly down on their threads.

Offline Sharpy

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Re: Wheel Truing - Are the hubs central to the Rims (400f)
« Reply #6 on: December 05, 2013, 11:13:43 AM »
Cheers all... I figured they were generally centered, I will make a few measurements but work on the theory of right spokes, right hubs and right rims = can't go far wrong..

 :D