Centering Tool For Park Truing Stand?
12-22-14, 06:03 PM
#26
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12-22-14, 10:27 PM
#27
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I think centering a rim can be done on a good solid truing stand accurately and quickly. Just flip the wheel on the stand a few times while bringing the spoke tension up to specs.
On a light weight rear road wheel the spoke tension and dish will change slightly after airing up the tire and tube. I would rather have my rim on center plane while I'm riding.
On a light weight rear road wheel the spoke tension and dish will change slightly after airing up the tire and tube. I would rather have my rim on center plane while I'm riding.
12-22-14, 11:49 PM
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flipping the wheel in the stand requires that the axle seats in a repeatable fashion. On my TS-2.2, I never feel comfortable that this will happen. Take the wheel out, put it back in and it's a different distance from the calipers. Not sure what's going on, probably has to do with the shaft collars
I built a dishing gauge very similar to the EVT. More work than I should have spent on it. Now I wish I had come up with my own design
I built a dishing gauge very similar to the EVT. More work than I should have spent on it. Now I wish I had come up with my own design
12-23-14, 05:51 AM
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I think centering a rim can be done on a good solid truing stand accurately and quickly. Just flip the wheel on the stand a few times while bringing the spoke tension up to specs.
On a light weight rear road wheel the spoke tension and dish will change slightly after airing up the tire and tube. I would rather have my rim on center plane while I'm riding.
On a light weight rear road wheel the spoke tension and dish will change slightly after airing up the tire and tube. I would rather have my rim on center plane while I'm riding.
12-23-14, 07:31 AM
#30
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I use the Campy and the VAR daily and I have an old Wheelsmith folder for traveling. The very expensive EVT Trigger Wheel Dishing Tool is temping: EVT | Trigger Wheel Dishing Tool
12-23-14, 08:45 AM
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I've added a spring that fits over the sliding axle locating shaft and under it's arcing frame to my VAR. With a touch of hand/finger skill I can place the dishing tool on the wheel, the spring loaded axle shaft will be pressed up against the lock nut and I can snug up the thumb bolt to lock the shaft in place with just the one hand (the other hand is holding the wheel).
Curtis- Nice to see you here. I like your additions to our passion. Andy.
Curtis- Nice to see you here. I like your additions to our passion. Andy.
12-23-14, 03:07 PM
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Once one accepts the concept of tolerance in all things mechanical, then they also accept that the change is within those limits and can be disregarded.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
12-23-14, 03:12 PM
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Does adding air in the tire change the spoke tension? Then I could imagine it could slightly affect the dish (if you have sub-micron truing on your wheels).
If removing and re-inserting a wheel in the stand changes the centering, then any stand centering tool will only give you a good estimate.
If removing and re-inserting a wheel in the stand changes the centering, then any stand centering tool will only give you a good estimate.
12-23-14, 03:59 PM
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It's a tiny difference, but when you inflate a tire, the rim contracts a bit. That contraction has different effects on either side because of the differences in base tension and bracing angle.
Once one accepts the concept of tolerance in all things mechanical, then they also accept that the change is within those limits and can be disregarded.
Once one accepts the concept of tolerance in all things mechanical, then they also accept that the change is within those limits and can be disregarded.
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