Lightcarbon: New LCR017-D (or Yishun R1058-D)

[planet_sammy]

Post other photo, I don't understand where that hole is, in mine I don't found

I think it is the front derallieur cable hole?!

It looks like the cable "worked" there, I hope that Lightcarbon doesn't use the "assembly error" argument...

[eugeniob]

I think it is the front derallieur cable hole?!

It looks like the cable "worked" there, I hope that Lightcarbon doesn't use the "assembly error" argument...

Mine is this

[HanzJWermhat]

Huh this is weird the LightCarbon website doesn’t show a hole below the FD on the side of the frame only the back but on other people’s frame shots it’s clearly there

[AdamB]

Post other photo, I don't understand where that hole is, in mine I don't found

Here some extra pictures.

Update from LightCarbon: They responded requesting more info on the bike. I will let everyone know when I have more updates

[dinorello]

Huh this is weird the LightCarbon website doesn’t show a hole below the FD on the side of the frame only the back but on other people’s frame shots it’s clearly there

Might be because putting a 5mm hole there causes catastrophic failure?  My frame has the hole for the FD behind and lower on the seat post as it's pictured on LC's website.  A bit a hassle dealing with the wire but preferred over weakening the frame

[HanzJWermhat]

Might be because putting a 5mm hole there causes catastrophic failure?  My frame has the hole for the FD behind and lower on the seat post as it's pictured on LC's website.  A bit a hassle dealing with the wire but preferred over weakening the frame

You wouldn’t think that area would have a high amount of stress otherwise it would be a stronger shape on most bikes, but that comes down to a lot of different factors. several manufactures have a hole there but on a flatter surface. LightCarbon are building my frame at the moment, kinda wondering if I should hit them up and show them this post and request no hole (running wheel top so I don’t need it anyway).

Anyone else with holed frames seeing issues? Or put more miles into theirs with no issue?

[AdamB]

Just got an update from LightCarbon: They will fully replace my frame (painted with the original design). Concerning the crack, it is believed to be an error in manufacturing and moving forward they will pay extra attention by inspecting the frames internally.

[Serge_K]

Just got an update from LightCarbon: They will fully replace my frame (painted with the original design). Concerning the crack, it is believed to be an error in manufacturing and moving forward they will pay extra attention by inspecting the frames internally.

I was thinking 2 days ago "hmmm, that thread is dead, with all the messed up frames from a couple of months ago, with the swiss cheese one being an instant classic, i suspect people here started buying other frames".
And then, again, yet another frame built like total a$$.
When's the last time we saw major manufacturing mistakes on velobuild frames? This is not normal. Yes, the 17D is light, but if they can't make them properly, they shouldnt make them at all.
I lost interest in the frame when i saw the shape of the down tube, so i wont do statistics, but it would be interesting to see the bin rate of 17D frames on this forum, compared to other frames. i can think of 1 fake SL8 that disintegrated, and lots of velobuild pinarello clones cracking at the seat post, but that's a known weak point, i guess, and a frame they discontinued months ago.
Also funny to me that Hambini was promoting light carbon on that awkward nero show this week.
At this point, as far as i'm concerned, velobuild sells cheap clones, and they work. Light carbon sells lighter, more expensive clones, but they dont work.

[Sander2177]

I was thinking 2 days ago "hmmm, that thread is dead, with all the messed up frames from a couple of months ago, with the swiss cheese one being an instant classic, i suspect people here started buying other frames".
And then, again, yet another frame built like total a$$.
When's the last time we saw major manufacturing mistakes on velobuild frames? This is not normal. Yes, the 17D is light, but if they can't make them properly, they shouldnt make them at all.
I lost interest in the frame when i saw the shape of the down tube, so i wont do statistics, but it would be interesting to see the bin rate of 17D frames on this forum, compared to other frames. i can think of 1 fake SL8 that disintegrated, and lots of velobuild pinarello clones cracking at the seat post, but that's a known weak point, i guess, and a frame they discontinued months ago.
Also funny to me that Hambini was promoting light carbon on that awkward nero show this week.
At this point, as far as i'm concerned, velobuild sells cheap clones, and they work. Light carbon sells lighter, more expensive clones, but they dont work.

These frames are a bit of a minefield, but to be fair, the same can be said for Western brands. How many SL8s have gone back to Specialized under warranty? I have an SL8, but my SL7 had to be returned due to a paint defect. Inevitably, defects happen—it’s the same with buying anything, even a car. I was watching that Hambini video this morning and wondering if I should revisit this frame… maybe not, lol.

[dinorello]

I've said it before and taken flack for it ...hambini's shilling this frame.

[Sander2177]

I've said it before and taken flack for it ...hambini's shilling this frame.

Most of them are at it with the shilling. The controversial cyclist is the only one at the moment who isn’t. But they all change their tune once they catch a whiff of cash, and to be honest, I don’t blame them—I’d do the same. Most people are lying if they say they wouldn’t!

[JimLee]

Here some extra pictures.

Update from LightCarbon: They responded requesting more info on the bike. I will let everyone know when I have more updates

Dear all: First of all, please allow me to express my sincerest apologies on behalf of our team. Due to recent busy work, we failed to check the forum in time and missed the timely feedback on this post. We are very grateful to our friend Danis for letting us know about this post in time, and giving us the opportunity to express our apologies and solutions to you.
First of all, let me talk about the results.
Dear Adam, We are deeply sorry for the frame problem you encountered. I believe Wendy has replied to you by email in time. We will send you a brand new frame that has been strictly inspected and fully qualified for free, and will re-spray the same paint as the original one to ensure that your vehicle can be restored to its best condition. We are deeply sorry for the trouble and inconvenience caused to you by this mistake. We promise to do our best to solve your problem and ensure that similar situations will not happen again. Once again, I express my sincerest apologies to you and thank you for your understanding and tolerance. If you have any other questions or need further assistance, please feel free to contact us.

[JimLee]

Second, the cause of the cracks
We conducted an in-depth investigation and analysis on the causes of the cracks in the frame. The following is our analysis:
1. The quality of the rough frame is qualified. First of all, it should be clear that the quality of the rough frame is fully in line with the standards at the rough stage. The finished product at this stage has undergone strict quality inspection to ensure the stability and safety of its basic structure.
2. Problems in the custom painting process
However, in the subsequent custom painting process, the key problem that caused the cracks appeared. In order to make the painting uniform and beautiful, the workers need to use sandpaper to manually polish the rough frame so that the paint has better adhesion. In this process, the processing workers of this frame may have overexerted when polishing around the holes, resulting in the destruction of strength.
3. In the quality inspection link after the painting, these weak parts have been covered by paint and the surface has restored thickness, resulting in these weaknesses not being discovered in time.
In summary, the appearance of cracks is mainly due to the excessive polishing force of workers during the custom painting process, which leads to the thinning of carbon yarn around the holes and is covered up in the subsequent quality inspection. We will strengthen training and management on this issue and add a quality inspection after the frame is sanded and before it is painted to ensure that similar problems do not occur again.

[Sander2177]

Second, the cause of the cracks
We conducted an in-depth investigation and analysis on the causes of the cracks in the frame. The following is our analysis:
1. The quality of the rough frame is qualified. First of all, it should be clear that the quality of the rough frame is fully in line with the standards at the rough stage. The finished product at this stage has undergone strict quality inspection to ensure the stability and safety of its basic structure.
2. Problems in the custom painting process
However, in the subsequent custom painting process, the key problem that caused the cracks appeared. In order to make the painting uniform and beautiful, the workers need to use sandpaper to manually polish the rough frame so that the paint has better adhesion. In this process, the processing workers of this frame may have overexerted when polishing around the holes, resulting in the destruction of strength.
3. In the quality inspection link after the painting, these weak parts have been covered by paint and the surface has restored thickness, resulting in these weaknesses not being discovered in time.
In summary, the appearance of cracks is mainly due to the excessive polishing force of workers during the custom painting process, which leads to the thinning of carbon yarn around the holes and is covered up in the subsequent quality inspection. We will strengthen training and management on this issue and add a quality inspection after the frame is sanded and before it is painted to ensure that similar problems do not occur again.

Well you cannot fault JimLee from LC response to this issue!. seems sincere enough!
My faith is now restored!
so JimLee any new frames under developmemt ;-D

[JimLee]

3. After-sales and quality assurance
In the field of industrial products, 100% pass rate is our pursuit, but we know that this is an unattainable goal, especially since most of the processes of carbon fiber frames are handmade, and defective products are inevitable. This is even big brands will inevitably encounter challenges in the production process and cannot fully guarantee the absolute qualification of each product. Some big brands have more than thousands of frames returned or destroyed for each style every year. Their OEM factories are around our factory, and we know this very well.
However, we are always committed to minimizing the probability of errors through strict quality control processes. The LCR017-D frame has currently shipped more than 8,300 pieces, but our defective rate has always been low.
It’s not terrible if there is a problem, we will solve it. We have excellent after-sales service.
We are very proud of our after-sales service. Whether it is a bicycle brand that purchases in bulk or an individual consumer, we always adhere to the established after-sales policy to provide customers with the most perfect solution possible.
About the recent problem, we did not choose to avoid it. When Wendy received Adam's feedback, we immediately took positive and timely measures to resolve it. This responsible attitude is the key to our winning the trust of more and more partners in the European market over the past decade. We firmly believe that high-quality after-sales service and unremitting pursuit of quality are the cornerstones of our long-term cooperative relationship with you.