Light Bicycle wheel rims?
Moderator: robbosmans
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The spirit of this board is to compile and organize wheels and tires related discussions.
If a new wheel tech is released, (say for example, TPU tubes, a brand new tire, or a new rim standard), feel free to start the discussion in the popular "Road". Your topic will eventually be moved here!
The spirit of this board is to compile and organize wheels and tires related discussions.
If a new wheel tech is released, (say for example, TPU tubes, a brand new tire, or a new rim standard), feel free to start the discussion in the popular "Road". Your topic will eventually be moved here!
Received delivery of LB UFO TL disc, ordered early November 2022. DT350 Shimano 11sp, sunflower side pattern, 1087g.
Minimum bike categories required in the stable:
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
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Here are mine: https://www.lightbicycle.com/photowall/ ... heels.html
I have to wait a few weeks until they arrive. Really light with a CX-Ray/Sprint mix at the rear and I am curious how the Hypersmarts are. Looking forward to build up the Ostro and these wheels help keeping the weight with that porky frame low.
I have to wait a few weeks until they arrive. Really light with a CX-Ray/Sprint mix at the rear and I am curious how the Hypersmarts are. Looking forward to build up the Ostro and these wheels help keeping the weight with that porky frame low.
Well, you better be not suprised if there are some issues.
As good as the LB spoked wheels have been for me (and others I know), I'm now in the process how to send the disc back / get a refund. The disc has terrible wobble, like 2-3mm to each side, as if the sidewalls aren't mounted straight on the hub. It has a "QC OK" sticker to it, but I wonder what quality procedures are there to let something like that out of the factory.
Minimum bike categories required in the stable:
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Uh, that does not sound good at all!mrlobber wrote: ↑Sun Jan 15, 2023 9:16 pmWell, you better be not suprised if there are some issues.
As good as the LB spoked wheels have been for me (and others I know), I'm now in the process how to send the disc back / get a refund. The disc has terrible wobble, like 2-3mm to each side, as if the sidewalls aren't mounted straight on the hub. It has a "QC OK" sticker to it, but I wonder what quality procedures are there to let something like that out of the factory.
Would you mind posting updates on how the refund process is working out? I hope that i will have better luck. I ordered end of november and already received the front wheel (R88) which looks pretty good so far (haven't tested outside yet). They haven't even started to build the UFO yet but mailed me that they expect to ship it mid-february. Hopefully they can sort out their issues until then.
Here is what they wrote to me:
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UFO disc wheel applies advanced “Hollow” structural design (Same as DT Swiss’ ARC 1100 disc) that combines the wheel with the tire as a whole system. It is only when the tire is properly installed and inflated with a certain air pressure to bump up right in bead seat, the wheel is forced by the tire SITTING IN BEAD SEAT CORRECTLY to get into the true situation that is ready for riding.
I checked your wheel's QC report, there was no problem after pumping up the tire. May we have your patience please to have the full processes done from the begining again? It is 100% the same processes as what you should do with any conventional wheels before riding: You need to install the tire correctly and pump up to a reasonal PSI, it is better to up to 120 PSI the first time for this wheel.
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I'm not an engineer, but to me it just doesn't seem to make sense, does it? Especially after the tyre installation actually nothing changed.
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UFO disc wheel applies advanced “Hollow” structural design (Same as DT Swiss’ ARC 1100 disc) that combines the wheel with the tire as a whole system. It is only when the tire is properly installed and inflated with a certain air pressure to bump up right in bead seat, the wheel is forced by the tire SITTING IN BEAD SEAT CORRECTLY to get into the true situation that is ready for riding.
I checked your wheel's QC report, there was no problem after pumping up the tire. May we have your patience please to have the full processes done from the begining again? It is 100% the same processes as what you should do with any conventional wheels before riding: You need to install the tire correctly and pump up to a reasonal PSI, it is better to up to 120 PSI the first time for this wheel.
===============================================================
I'm not an engineer, but to me it just doesn't seem to make sense, does it? Especially after the tyre installation actually nothing changed.
Minimum bike categories required in the stable:
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
I've never heard anything like this, but i also have no experience with disc wheels so far.
Maybe just do as they say and try again? Are you absolutely sure that your tire was installed correctly when you tried the first time? When i installed the Corsa Speed on my R88 i had some wobble as well because the tire wasn't seated completely, which was pretty hard to see when not rotating. It took a lot of air pressure and some hand force to get it to slide in completely. Maybe it helps to put some soapy water on the bead to make the process easier.
If this shouldn't help i would send them a short video of the problem as the next step, with installed tire and a pump that shows 120 PSI.
Maybe just do as they say and try again? Are you absolutely sure that your tire was installed correctly when you tried the first time? When i installed the Corsa Speed on my R88 i had some wobble as well because the tire wasn't seated completely, which was pretty hard to see when not rotating. It took a lot of air pressure and some hand force to get it to slide in completely. Maybe it helps to put some soapy water on the bead to make the process easier.
If this shouldn't help i would send them a short video of the problem as the next step, with installed tire and a pump that shows 120 PSI.
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I heard some DT Swiss disc wheel customers were sent video of the wheel with tire fitted and inflated running well before dispatch. So it is good to ask Light Bicycle to send similar video for you before wheel shipped out to keep everything right which seems more controlable in advance (You also could see how to follow the said proccess with them). They are very nice to accept customers' requests.txg wrote: ↑Mon Jan 16, 2023 9:51 amI've never heard anything like this, but i also have no experience with disc wheels so far.
Maybe just do as they say and try again? Are you absolutely sure that your tire was installed correctly when you tried the first time? When i installed the Corsa Speed on my R88 i had some wobble as well because the tire wasn't seated completely, which was pretty hard to see when not rotating. It took a lot of air pressure and some hand force to get it to slide in completely. Maybe it helps to put some soapy water on the bead to make the process easier.
If this shouldn't help i would send them a short video of the problem as the next step, with installed tire and a pump that shows 120 PSI.
In my case, I currently have a 28mm TC with latex tube installed, and the wobble still persists. By feel, it's slightly less pronounced when the wheel spins fast, but becomes again really obvious at slow speeds. So we'll see.
Here's a link to video file (24Mb), how it looks:
https://drive.proton.me/urls/8FB4VZ4PEM#dIZxuyItfAhU
Here's a link to video file (24Mb), how it looks:
https://drive.proton.me/urls/8FB4VZ4PEM#dIZxuyItfAhU
Minimum bike categories required in the stable:
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike
Wtf, this looks dangerous and absolutely unridable.mrlobber wrote:In my case, I currently have a 28mm TC with latex tube installed, and the wobble still persists. By feel, it's slightly less pronounced when the wheel spins fast, but becomes again really obvious at slow speeds. So we'll see.
Here's a link to video file (24Mb), how it looks:
https://drive.proton.me/urls/8FB4VZ4PEM#dIZxuyItfAhU
Ouch, I heard from it and I think I have also read it before I bought a Roval 321. But it only affects the dishing of the "rim"/tire. At correct pressure the tire dishes correctly 1mm in a certain direction. I have measured my Roval 321. At one point it is 0,7mm out of true and if you look really accurate then you can see it. Never noticed it while driving.
But in your video there is really, really a lot of movement. The pressure at the rim beads is bigger if a tubeless tire is mounted, but I can not imagine that this disc will ever come true by only inflating a tire to a certain pressure level. Send them this video and ask for a quick replacement or refund.
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