A customer brought in a Dahon 28H rear wheel built with a Joytech (Japanese hub manufacturer) rear hub that has the DAHON logo on the hub shell.
Apparently a nearby shop—the owner's got a good personality and all—tried to true it, but the result was pretty rough. The non-driveside nipples on the radial-spoked section were tightened and tightened and tightened some more, which pushed the rim way off to the left side. The tire wasn't rubbing the frame or anything, but the V-brake setup's totally off now.
This amount of center offset is honestly the worst I've seen on an actual used wheel—not even a wheel in the middle of being built.
It's a small-diameter 20-inch HE rim in ETRTO 406mm, and since it's radial-spoked on the non-driveside, the lateral rim movement relative to nipple rotation is pretty significant.
The lateral runout was okay, but there was enough radial runout that the rim was actually twitching while spinning.
Got the radial and lateral runout sorted, and centered the rim. I turned the nipples with a bias toward tightening as much as possible, but since the non-driveside had already been cranked so tight, I had to loosen it back out to reasonable tension. After I finished, looking at the nipples from the rim's outer edge, the spokes looked way too short on both sides—but that's just how it came from the factory.
Apparently a nearby shop—the owner's got a good personality and all—tried to true it, but the result was pretty rough. The non-driveside nipples on the radial-spoked section were tightened and tightened and tightened some more, which pushed the rim way off to the left side. The tire wasn't rubbing the frame or anything, but the V-brake setup's totally off now.
This amount of center offset is honestly the worst I've seen on an actual used wheel—not even a wheel in the middle of being built.
It's a small-diameter 20-inch HE rim in ETRTO 406mm, and since it's radial-spoked on the non-driveside, the lateral rim movement relative to nipple rotation is pretty significant.
The lateral runout was okay, but there was enough radial runout that the rim was actually twitching while spinning.
Got the radial and lateral runout sorted, and centered the rim. I turned the nipples with a bias toward tightening as much as possible, but since the non-driveside had already been cranked so tight, I had to loosen it back out to reasonable tension. After I finished, looking at the nipples from the rim's outer edge, the spokes looked way too short on both sides—but that's just how it came from the factory.