Author Topic: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link  (Read 37436 times)

Sander2177

Hey Bonus,

Thanks for your thoughtful reply — I really appreciate you taking the time, especially given how busy things get.

Yeah, I get that it’s a deep dive into a tricky topic, and it’s not easy balancing that with day-to-day stuff. Your insight on Workswell and the re-badging by various brands really highlights the complexity of the market.

You know, I totally respect the proprietary frame thing, the OEM, the OpenMold — but for me, those are pretty much what you expect. Generally, OpenMold works well. Companies like HongFu are well researched, and there’s plenty of info about them on the forums.

The thing that really caught my attention is the counterfeit side of things — that murkier world. It’s interesting because it’s potentially factories and manufacturers that make these frames on the side. So it’s worth looking into the claimed quality of these frames.

Like it or not, there is a huge, huge market for these counterfeit frames — there just is.

I started the thread on the Chinatown forum because I was curious about these things myself, and I guess it’s sparked some interesting discussion. I’m just one guy trying to make sense of it all too!

Totally agree that there are bigger creators who might take it further, but for now, it’s about what’s manageable and interesting. Looking forward to seeing how this develops.

Thanks again for your input!

glepore



That said, this SL8 frame in question. From what I've read so far:

- The replica frame fork is lighter than a genuine SL8 fork (some reports of it "exploding" too). Why is this?

- Not sure, but does a genuine SL8 seatpost fit into the replica SL8 frameset? If not, then that's quite revealing.

Ultimately, no matter how much research you do, I think the final end result will be the same. IE: It's way cheaper than a genuine SL8, it's good, but it's not better.

The replica fork in practice generally isn't lighter than an actual sl8 fork. The quoted weight may be, but there's a very wide tolerance quoted. There is one report of failure that I'm aware of . I did a fair amount of bike law in a prior life and I can vouch that carbon parts from big companies fail too. In fairness, they are subject to remedies that tantan and others likely aren't, but hey, if you're injured I'm not sure that's a major factor. That said, yes, I suspect that the factory producing for Specialized in all likelihood has more qc oversight than the average "replica" as most are sold by resellers.

As far as parts fitment goes, there is a very slight variance between the actual sl8 post and the tantan post. Reports have been of 1mm or so. Likely a cad or scanning error. Otherwise the parts work.

But to your greater point, I don't think anyone buying these frames expect them to be "as good" or "better".  I've said before that I bought one because I'm old af and wasn't sure I could make an sl8 actually usable for me, and risking $700 was much different than risking 3k+. Turns out the bike fits, and is a very nice ride, nice enough that I grab it almost always before some high end og bikes.
I honestly don't feel the need to upgrade to a "real" sl8 at this point for the marginal gain. I don't doubt that the real bike is "better" in some way, but I would speculate that a) its not 5x better and b) that confirmation bias aside, without labels you'd be hard pressed to tell.

I get that at the end of the day folks have an issue with flat out fakes and "homage" things. Bicycles, watches, handbags, whatever. I don't begrudge that. I'm living on an adequate but "fixed" income now and can't play in the luxury world any longer.  But if the "real" value of something is grossly inflated by marketing costs, distribution costs, dealer networks yada, I'm ok with not paying that tax.

Thanks for your participation here, your bikes and photos are well composed and beautiful.
« Last Edit: June 20, 2025, 08:57:04 AM by glepore »

Sakizashi

I am ideologically opposed to counterfeits and believe frames like the X68 risk being deemed counterfeits, even when not branded. However, I do like this thought experiment, and even the information so far is going a long way towards dispelling the rumors that these are simply frames that fell off of a truck.

At a high level, we need to remember that the load of a modern carbon frame is carried through its external structure, which is why it is referred to as a monocoque frame. Regardless of the construction method, if you can build a frame that passes ISO testing, it's likely to feel remarkably similar; the shape of that structure will be the most significant factor in determining the stiffness of the frame. Details like layup and wall thickness can make a difference, but they are an order of magnitude less important.

That said, the most significant issues with counterfeits of high-end frames are that I don't get the sense that the people doing the replication understand where the original designers made tradeoffs to achieve the performance of their frames. Remember a lot of these frames have known drawbacks like the lack of front-end stiffness of the SSE, front-end performance and reliability on Factors, and seat tube / seat post clamp + stay cracking issues on the Dogma F12 and F. Given that the outside form has a significant influence on the structure of the frame, its not a surprise that replicas seem to suffer from the same issues, potentially at a higher rate. I think VB even stopped making their Dogma clone.

My questions to a replica builder would be to understand if they identified any potential weaknesses in the original design and how they managed that.

I am guessing they don't think about it at all as they are focused on the form, and it's better to buy an original open mold where some engineer thought about and made decisions, conscious of the tradeoffs they were introducing. To me, an analogy is that the replica is having a Frank Lloyd Wright replica house built op top of a waterfall with the help of an architect, but without a review by a structural engineer. The open mold is a structurally sound McMansion with little architectural involvement.
« Last Edit: June 20, 2025, 01:39:30 PM by Sakizashi »

gbrnole

I am ideologically opposed to counterfeits and believe frames like the X68 risk being deemed counterfeits, even when not branded. However, I do like this thought experiment, and even the information so far is going a long way towards dispelling the rumors that these are simply frames that fell off of a truck.

At a high level, we need to remember that the load of a modern carbon frame is carried through its external structure, which is why it is referred to as a monocoque frame. Regardless of the construction method, if you can build a frame that passes ISO testing, it's likely to feel remarkably similar; the shape of that structure will be the most significant factor in determining the stiffness of the frame. Details like layup and wall thickness can make a difference, but they are an order of magnitude less important.

That said, the most significant issues with counterfeits of high-end frames are that I don't get the sense that the people doing the replication understand where the original designers made tradeoffs to achieve the performance of their frames. Remember a lot of these frames have known drawbacks like the lack of front-end stiffness of the SSE, front-end performance and reliability on Factors, and seat tube / seat post clamp + stay cracking issues on the Dogma F12 and F. Given that the outside form has a significant influence on the structure of the frame, its not a surprise that replicas seem to suffer from the same issues, potentially at a higher rate. I think VB even stopped making their Dogma clone.

My questions to a replica builder would be to understand if they identified any potential weaknesses in the original design and how they managed that.

I am guessing they don't think about it at all as they are focused on the form, and it's better to buy an original open mold where some engineer thought about and made decisions, conscious of the tradeoffs they were introducing. To me, an analogy is that the replica is having a Frank Lloyd Wright replica house built op top of a waterfall with the help of an architect, but without a review by a structural engineer. The open mold is a structurally sound McMansion with little architectural involvement.
with respect to the quality of the production we heard the same thing about carbon wheels direct from China for years. as it stands today, i don't for see myself ever buying a traditional western brand wheel ever again. the pace of advancement in wheels from China is way out ahead of the pack.

quality of frame production is on a similar trajectory. my only current direct from China bicycle frame is my MTB but i have absolutely abused that bike including wrecking hard coming down Jack Mountain in Georgia and it keeps on giving. it has been a great bike.

i am in the the process of helping my son build up an X68. when done it will be yet another data point of its construction and ride quality vs an actual SL8 (mine).

JustinFox

Thanks for your participation here, your bikes and photos are well composed and beautiful.

Thank you! Long time lurker, but long story short; my Dad was Chinese, and passed away when I was a teenager. In homage to him I'd really love to build a full Chinese build where every single component is not only made in China, but sold by Chinese brands. Up until now the groupset and the tyres were the only thing stopping me, but it's looking like some performance tyres are now coming out of China, so I feel like my project can finally begin.

On the topic of replicas; I've been a graphic designer for most of my career. I put a LOT of blood, sweat and tears to get to the top of my game, and having individuals and companies rip off my work really pissed me off, so much so that I spent countless hours trying to take them down (IE: a lot of energy, time and stress fighting them). When I quit graphic design I started shooting photography full time, and again. I've had countless people rip off my photography with no credits, or worse yet taking credit (not to mention a lot of AI "artwork" using my photography as the source).

Morgan Freeman the actor said something interesting in an interview once, when asked about how do we end racism he simply stated that we stop talking about it. Whilst I'm aggressively against replicas and counterfeits I value discussion a lot.

Do I think any less of my friends who buy counterfeit goods? Maybe, but not enough to unfriend them! I live with it by telling myself it's their problem, not mine. And as I've said elsewhere, am I at all tempted to buy a replica SL8 frame? Yes I am because I'm curious to see how it compares to my genuine SL8. I've never been one to read other people's reviews, but instead would prefer to try things out myself. That said I struggle in this case with knowing the end result before even starting (IE: that the fake SL8 will be fine, but not as good as the real thing).

On a technical point; I do think I would be more impressed if genuine OEM SL8 parts fit the counterfeit frame. Why? Well it would show a greater level of care and craftmanship, and most of all it would allow me to put aftermarket SL8 components onto my replica frame, which is crazy important to me as I love tinkering with bikes and trying out new components as they come out.

Sakizashi

with respect to the quality of the production we heard the same thing about carbon wheels direct from China for years. as it stands today, i don't for see myself ever buying a traditional western brand wheel ever again. the pace of advancement in wheels from China is way out ahead of the pack.

quality of frame production is on a similar trajectory. my only current direct from China bicycle frame is my MTB but i have absolutely abused that bike including wrecking hard coming down Jack Mountain in Georgia and it keeps on giving. it has been a great bike.

i am in the the process of helping my son build up an X68. when done it will be yet another data point of its construction and ride quality vs an actual SL8 (mine).

Whoa there. Please don't take what I said out of context. I am talking about replica brands NOT Chinese production or Chinese brands. IMO, there are people in China as qualified as any western engineer to design a bike frame.

I also have huge respect for the wheel brands that are bringing lightweight layups and focusing on what they do well to deliver excellent products. I also have experience working with Chinese factories on projects, and though language barrier can make communications awkward, they are in no way worse than Western factories. Trade war be damned I have nothing but respect for smart, honest businesses trying to make a buck.

glepore

Thank you! Long time lurker, but long story short; my Dad was Chinese, and passed away when I was a teenager. In homage to him I'd really love to build a full Chinese build where every single component is not only made in China, but sold by Chinese brands. Up until now the groupset and the tyres were the only thing stopping me, but it's looking like some performance tyres are now coming out of China, so I feel like my project can finally begin.

On the topic of replicas; I've been a graphic designer for most of my career. I put a LOT of blood, sweat and tears to get to the top of my game, and having individuals and companies rip off my work really pissed me off, so much so that I spent countless hours trying to take them down (IE: a lot of energy, time and stress fighting them). When I quit graphic design I started shooting photography full time, and again. I've had countless people rip off my photography with no credits, or worse yet taking credit (not to mention a lot of AI "artwork" using my photography as the source).

Morgan Freeman the actor said something interesting in an interview once, when asked about how do we end racism he simply stated that we stop talking about it. Whilst I'm aggressively against replicas and counterfeits I value discussion a lot.

Do I think any less of my friends who buy counterfeit goods? Maybe, but not enough to unfriend them! I live with it by telling myself it's their problem, not mine. And as I've said elsewhere, am I at all tempted to buy a replica SL8 frame? Yes I am because I'm curious to see how it compares to my genuine SL8. I've never been one to read other people's reviews, but instead would prefer to try things out myself. That said I struggle in this case with knowing the end result before even starting (IE: that the fake SL8 will be fine, but not as good as the real thing).

On a technical point; I do think I would be more impressed if genuine OEM SL8 parts fit the counterfeit frame. Why? Well it would show a greater level of care and craftmanship, and most of all it would allow me to put aftermarket SL8 components onto my replica frame, which is crazy important to me as I love tinkering with bikes and trying out new components as they come out.

Cool backstory. I can say from experience that Wheeltop is very impressive for what it is and costs. Have to keep in mind that it's a bit beta, but the company does care and listen. So a fully Chinese quality build is possible, my x68 is in fact that other than tires (and I swapped in Campy calipers just because I like the modulation).


Cool backstory. I can say from experience that Wheeltop is very impressive for what it is and costs. Have to keep in mind that it's a bit beta, but the company does care and listen. So a fully Chinese quality build is possible, my x68 is in fact that other than tires (and I swapped in Campy calipers just because I like the modulation).
« Last Edit: June 22, 2025, 10:52:48 AM by glepore »

Sander2177

As you know, I’ve been speaking to someone for the past couple of weeks now. Interesting stuff — he told me none of the frames being made use T1000 carbon. That’s basically sales nonsense. He said nobody uses T1000 or T1100 because it’s hard to get and it not just sold to anyone as the sale of its controlled so they just don’t use it. The frames they use are mostly T800 and M30 carbon fiber.

There’s a lot of insider chat about who’s cutting corners, who’s using lower-tier frames but selling them as genuine. They mostly stay outside the replica circle for safety, but they hear bits and pieces about people getting caught and such. This guy mainly sells domestically but has been getting more orders from Western customers via AliExpress and WhatsApp.

He also said they do buy genuine frames as references during production to test component fit and paint color matching. While they can’t guarantee perfect one-to-one replicas, they do, as obviously as you can see, try to get as close to the original as possible. He emphasized that nobody can guarantee a 100% one-to-one replica — it will always be very close, but never exact because it’s not the real thing. People always want better quality, and there’s nothing wrong with that.

He also said some people are cutting corners, but there’s a noticeable shift where some manufacturers are spending more time and effort to produce higher-end replicas to increase sales and profits. He’s noticed that trend growing.

According to him, at least three different groups are making SL8 frames, and some actually use the same carbon fiber factory. It’s almost like a Western brand going to a factory to produce frames, so the quality depends on the factory more than the group selling. Most sellers don’t own factories; they get the design drawings and outsource production to OEM factories.

He mentioned the S5 replica frames — apparently, a carbon fiber factory obtained the design drawings themselves and produced frames they then sold to distributors and customers. Personally, I doubt a factory developing and producing frames blindly from drawings without bike knowledge can do a great job. Factories produce all kinds of carbon parts, like badminton rackets and bumpers, but developing a carbon bike frame needs repeated testing, optimization, and the developer pushing the factory for improvements.

Sander2177

As I said before, I’m considering getting one of these frames and having it independently tested — WITH a CT scan or carbon layup analysis by a composite expert who operate close to me. Just to actually see what’s going on under the paint.

People are clearly interested — even if the thread replies are low, there are lukers  ;D as these are the ones asking where to buy these frame from and asking me about the quality!!. Feel free to DM if you’ve got questions, or want to share experiences anonymously.

Thanks to the people who have said they are willing to contribute, there have been 1383 people view maybe people who have dipped in and out but enough people to maybe buy two frames as suggested the X68 and a decaled copy.


Here’s the link for anyone interested:

paypal.me/sanderson2177

Not sure how it’ll go, but I’ll keep everyone updated on the balance.

If we don’t raise enough, it could take a while to refund everyone — just being honest 😄
Open to other suggestions too, so feel free to share your thoughts if you have a better idea!

And here is some more information below!


Replica Frames: Layups, Factory Realities, and the T1100-T1000 Myth — More from Inside the Industry



After my last post I have still be gathering more information and apologies if I am repeating anything. I know this is a divisive topic, but interest is clearly there — I’ve had quite a few DMs from people who are lurking but curious. A lot of the info below may seem casual, but it’s the kind of stuff that rarely gets said out loud.



Here’s a deeper look into what they’ve shared with me recently:
 
1. Drawings ≠ Layups

Yes, they’re using CAD model drawings sourced from original factories — but those don’t include carbon fiber layup data.


“In reality, it’s just a very precise 3D model — it doesn’t include the actual carbon fiber layering or fiber orientations.”


That means two frames made from the same model drawing can perform very differently, depending entirely on how the layup is handled.


2. The Real Art: Fiber Orientation


This is where real frame performance comes from.

“By adjusting the fiber orientation (0°, ±45°, 90°), we can achieve anisotropic mechanical properties. In areas that require stiffness (like the bottom bracket and head tube), we increase longitudinal layup. In areas meant to absorb shock (like the seat stays), we use angled layups.”

Each factory does this differently. There is no standard layup across replica frames, even if they come from similar drawings. And the material choice matters too.

“We use M30 material from Korea, which is second only to Toray. Those so-called ‘T1100 & T1000’ claims are just trying to fool you.”

So when you see a seller claiming “T1100 & T1000” — be wary. According to this seller, no one in the replica world is using it.



3.How Frames Are Really Made


Most sellers aren’t frame builders. They’re intermediaries.

“Yes, most people don’t actually own a factory — they just get hold of the design drawings and then look for an OEM factory to produce the frames. We’re the same.”

There’s even a recent case where the factory got the drawings themselves and just started producing (an S5 replica), selling to distributors directly. But:

“I don’t think a factory developing and producing on its own (just from drawings) will do a good job — because they don’t understand bicycles. They make all sorts of things — carbon fiber badminton rackets, carbon fiber car bumpers. 😂”

Without a seller pushing the factory through repeated testing and iteration, the result might look like a bike frame but not perform like one.







4. The Factory Goods Era Is Over

There was a time when  (defective or leftover factory goods) were sneaking out of original production lines.

“In the past, some people did take defective products from the original factory and sell them — we called those ‘factory goods.’ But now that kind of thing no longer exists, as control has become much stricter.”

Raids and enforcement are real:

“We only hear bits and pieces, like ‘so-and-so got caught by the police,’ or ‘their factory got raided and over 50 SL8 frames were confiscated.’”



5. Matching Originals — Not 1:1, But Close


They do buy genuine frames — for comparison, for paint matching, and to check component tolerances.

“We don’t dare guarantee a 1:1 replica; we can only say we try to get as close to the official version as possible.”

When it comes to paint and finish:

“We need genuine frames to match the colour tones and improve the level of accuracy.”

So if you’ve ever wondered why some replica paint jobs look dead-on and others look like knockoffs, this is why — some are actually colour-matched using real frames.

6. Spotting Low-Quality Sellers


This bit is gold:
“Just ask them if it’s ‘T1000’ — if they say ‘yes’, then it’s definitely low-quality, no doubt about it 😉. They love to exaggerate.”

“Or, if you see T1000 or T1100 in the product title on their shop, no need to think twice — block them and run away fast 🤣”

Real materials? T800 & Korean M30. Consistent QC? Factory-dependent. Grand claims? Usually fake.

7. SL8: At Least Three Groups Making It


As for the SL8, which a lot of people have asked me about — at least three separate groups are manufacturing it. According to the seller:

“A few of them are actually using the same carbon fiber factory. So the quality of the products they sell should be about the same.”

That said, branding and pricing varies — and some groups are even positioning themselves as “premium” sellers now



What’s Next?




thorbens

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #24 on: June 23, 2025, 07:53:59 AM »
I love the great insides being delivered in this topic and therefore am very happy to support this project. I don't care about the couple bucks it costs to contribute. In the end I am able to make a more informed choice and maybe even safe a lot of money I would've otherwise spend on a garbage frame. I see this as a nice kind of insurance and hope others will chime in as well and help this project

Pistonbroke

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #25 on: June 23, 2025, 08:11:45 AM »
Let's get the party started!
Donated to the cause buddy.
If it doesn't come off how about sending the money to cancer research or similar charity.

Sander2177

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #26 on: June 23, 2025, 09:21:27 AM »
Let's get the party started!
Donated to the cause buddy.
If it doesn't come off how about sending the money to cancer research or similar charity.

Just wanted to drop a quick message to say a massive thank you to those who’ve donated so far—especially Thorbons and Piston. I really appreciate the support, not just financially, but also the trust you’ve shown in what I’m trying to do here. It genuinely means a lot that you believe this is a genuine effort and not just a cash grab for some new frames.

Piston’s right—if this does go ahead and people chip in but we fall short of what’s needed, I’ll happily donate the funds to charity (Cancer Research UK), and of course, I’ll post proof of that. For transparency, we're currently sitting at about £60. If this gains a bit more momentum—and there are enough members here—it could really take off.

Like I’ve said before, people don’t seem to think twice about dropping $700–800 on frames from questionable sellers. So honestly, asking for £5, £10, £20 or more from those who are interested in seeing actual test results feels like a reasonable ask. At the end of the day, buying a frame from a seller on a hunch offers no guarantee either. Just ask anyone who’s lost money to Peter from Taiwan/Eisen—plenty of people never saw their frames or their money again.

Right now, I’m riding around on an X68 and sure, it hasn’t fallen apart underneath me—but there’s always that lingering question about how safe and well-made these unbranded frames really are. That’s what I’m trying to get clarity on.


patliean1

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #27 on: June 23, 2025, 10:21:45 AM »
I'm in agreement with Serge here.

Focusing your time and energy on X68 vs SL8 comparisons is the way to go. Rather than investing in another clone. Scrutinizing both frames with impunity will go a long way for the members here.

PANW

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #28 on: June 23, 2025, 10:24:59 AM »
I find this intriguing so I donated to the cause.

I’m fairly certain that I’ll be going with the XM Carbonspeed Grand Turismo frame instead of a replica once my size is available but I like that you’ve been providing valuable feedback and think this experiment will provide useful insight into replica products.

I am onboard with the charity donation should you not receive adequate funds for the purchase of a frame.

neobiker

Re: Thinking of Going Deeper Counterfeit Frames – UPDATE and Fund Link
« Reply #29 on: June 23, 2025, 10:47:05 AM »
I would love a some analysis of the frames, and get some expert opinion on safety or anything else. For these, you wouldn't need a benchmark as you could probably just rely on expert knowledge.

But yeah, I would prefer an analysis of the X68 more than a replica.

I donated, keep the money for a good meal or charity of your choice, if the project is not funded!