Advanced Composites Recalls Bicycle Forks Due to Fall Hazard (Recall Alert)

What was recalled

In the world of cycling, the integrity of every component matters immensely, as a single failure can compromise the safety of the rider and their passengers. The U.S. Consumer Product Safety Commission (CPSC) has issued an alert regarding a specific set of bicycle forks manufactured by Advanced Composites. This recall is not a blanket action against the entire brand but targets a precise batch of products that were produced during a narrow window of time in 2015. Specifically, the affected items are the Wound Up Tandem Duo Disc bicycle forks. These are high-performance components designed for tandem bicycles, which are built to carry two riders. The particular defect lies within the construction of these forks, which feature a carbon fiber crown and legs—a material choice that offers strength and weight benefits but requires meticulous manufacturing quality control.

The scope of this recall is defined by both the production date and unique serial numbers. Advanced Composites manufactured these specific forks between June 2015 and December 2015. If you own a tandem bicycle equipped with these forks, it is crucial to verify whether your unit falls within this timeframe. The company has identified specific serial numbers that are included in this recall notice. These serial numbers are engraved on the bottom of the disc brake tab mounted on the fork leg. The list of affected serial numbers includes AC662, BJ573, CD758, CE779, CE789, CE800, CE805, CE806, CF830, CF831, CG843, CG845, CG848, CG851, CG852, CG853, CG862, CG863, CG865, CH913, CH914, CH915, CH916, CI925, CI926, CI928, CI929, CI931, CI932, CI933, CI973, CI974, CI975, CI976, CK008, CK009, CL056, and CL062. If your fork’s serial number matches one of these codes, your component is part of the recall.

While the official recall announcement does not provide a total count of how many units were sold or distributed, nor does it specify the exact retail stores or online platforms where they were purchased, the identification method remains clear. The product is distinguished by its carbon construction and the "Wound Up" branding printed on the legs. This recall was officially announced on June 16, 2017. It is important to note that this action was taken proactively by Advanced Composites to address a potential manufacturing inconsistency that could lead to structural failure. By identifying these specific serial numbers and production dates, the company aims to ensure that any forks potentially affected by this issue are removed from service before they can cause harm. If you are unsure whether your bicycle was equipped with these forks at the time of purchase, checking the fork legs for the "Wound Up" text and inspecting the disc brake tab for the engraved serial number is the most reliable way to confirm eligibility for the recall remedy.

The hazard, explained

When you are riding a bicycle, especially one as specialized and heavy-duty as a tandem model, the fork is not just a piece of hardware—it is the critical link between your body’s momentum and the road beneath you. The Advanced Composites recall centers on a specific structural failure within these carbon fiber forks. Carbon fiber is an incredibly strong material when its layers are aligned perfectly and bonded correctly, but it is also somewhat brittle. It does not bend like metal; instead, it holds up to immense pressure until it suddenly gives way. In this case, the hazard lies in the fork leg, which is the vertical tube that connects the wheel axle to the main body of the fork.

The core issue identified by Advanced Composites is that these specific legs can develop cracks or become damaged over time. The recall notice highlights a particular area of concern: near the disc brake tab. This is where the brake caliper clamps down on the rotor to slow you down. Every time you apply the brakes, especially during the high-speed or heavy-load scenarios common with tandem bicycles, that area experiences significant stress. If the carbon fiber structure in that zone has a manufacturing flaw or fatigue, the repeated stress can cause a hairline crack to form and grow. While a small crack might not stop the bike from rolling immediately, it severely compromises the structural integrity of the leg.

The danger here is the suddenness of the failure. Unlike a tire that might slowly go flat or a chain that might stretch over months, a cracked carbon fork leg can fail catastrophically without warning. If the leg fractures completely while you are in motion, the front wheel can collapse inward or detach from the frame entirely. For a rider on a tandem bicycle—which is longer, heavier, and often carries two people—this loss of front-end support is particularly dangerous. The bike can become unstable instantly, making it nearly impossible to maintain balance or steer safely.

This mechanical failure leads directly to the fall hazard mentioned in the recall. A sudden collapse of the front fork can throw the rider forward over the handlebars or cause the bike to twist violently under them. Because the brake tab is part of this stress point, the failure often occurs precisely when the rider needs control the most: during braking. Even if the leg does not break completely, a significant crack can allow the wheel to wobble or shift, leading to a loss of steering control at speed. This is why the CPSC and Advanced Composites emphasize that the risk is not theoretical; it is a physical reality where a small material defect translates into a serious risk of injury from a fall.

It is important to note that these cracks are often invisible to the naked eye, especially in their early stages. You might ride your bike for days or weeks with a developing crack and feel no difference in handling until it is too late. This "silent" nature of carbon fiber failures is what makes proactive inspection so vital. The fact that Advanced Composites has received reports of cracks in this specific area confirms that the material degradation is real and measurable, not just a precautionary guess. By addressing this before the crack propagates to the point of structural collapse, you are preventing a potential accident before it ever happens.

Who is most at risk

The primary group at risk in this recall consists of individuals who own or ride the specific Advanced Composites "Wound Up Tandem Duo Disc" bicycle forks manufactured between June 2015 and December 2015. Because these components are specialized parts for tandem bicycles—bikes designed to carry two riders—the pool of potentially affected consumers is relatively niche but highly engaged in cycling culture. If you purchased a tandem bike equipped with these carbon fiber forks during that window, or if you retrofitted a tandem frame with this specific model, your bicycle falls directly into the scope of this safety alert. The risk is not theoretical; it is tied to a physical failure mode where the carbon leg can crack or become damaged, particularly next to the disc brake tab.

While any cyclist faces danger from sudden component failure, certain groups are disproportionately vulnerable to the consequences of a fork fracture. First, tandem riders themselves face unique risks due to the nature of their equipment. Tandem bikes are heavier than standard bicycles and carry two people at once. When a front-end component like a fork fails, it often happens without warning during critical moments such as braking or navigating uneven terrain. The sudden loss of steering control on a heavy, two-person vehicle can lead to a violent tumble that is far more severe than a fall from a single-rider bike. The combined weight and momentum mean that the forces involved in a crash are magnified, increasing the likelihood of serious injury for both the front and rear riders.

Furthermore, older adults who may be riding these bicycles as part of a shared recreational activity or fitness routine are at heightened risk of severe outcomes from falls. As we age, bone density naturally decreases, and balance mechanisms become less robust. A fall caused by a mechanical failure is particularly dangerous for this demographic because they have less capacity to brace themselves against impact. Even if the rider manages to stay upright initially, the shockwave from a collapsing fork leg can destabilize their posture, leading to secondary falls or impacts with hard surfaces. For elderly riders, a simple slip can result in hip fractures or head injuries that have long-term health implications, whereas a younger rider might simply scrape a knee.

Children and teenagers riding as passengers on the rear of these tandems are also in a precarious position. They often have less core strength and experience to react to sudden jolts or loss of balance. If the front fork fails, the entire bike can pivot unpredictably. Younger riders may not understand how to protect their heads or limbs during such an unexpected event, leaving them exposed to blunt force trauma. Additionally, because the recall involves carbon fiber construction, there is a concern that micro-fractures may develop silently over time. This means that even if the fork looks fine on the outside, the structural integrity could be compromised, making the hazard unpredictable for any rider regardless of their skill level. The absence of reported injuries so far is reassuring, but it does not eliminate the potential for severe harm in future incidents.

It is also important to recognize that cyclists who frequently ride on rough roads, gravel paths, or mountain trails face a higher probability of triggering this defect. The vibration and impact forces from uneven surfaces place additional stress on carbon fiber components. If you regularly subject your tandem bike to these kinds of conditions, the likelihood of the fork leg reaching its failure point is greater than for someone who only rides on smooth pavement. Therefore, the risk is not uniform across all owners; it is concentrated among those who use their bicycles aggressively or in challenging environments.

Finally, any rider who ignores the signs of wear and tear is putting themselves at unnecessary risk. The recall notice mentions a specific point of failure: near the disc brake tab. If you are a cyclist who performs regular maintenance, you might spot early signs of cracking or damage. However, if you do not inspect your bike frequently, you may remain unaware that your fork is compromised until it fails while in motion. This lack of awareness transforms a manageable mechanical issue into a sudden safety emergency. By understanding who is most at risk, we can emphasize the importance of immediate action for all owners, regardless of their riding style or experience level.

How to tell if you have the recalled item

Identifying whether your bicycle fork is part of this specific recall requires careful attention to several distinct details. Because Advanced Composites manufactures high-performance components, their products are often custom-ordered or sold through specialized bike shops rather than big-box retailers. This makes visual identification alone insufficient; you must verify the physical markings and production dates. The first step is to confirm that you have a fork from the brand "Advanced Composites" with the model name "Wound Up Tandem Duo Disc." These forks are characterized by their construction: they feature a carbon fiber crown and legs, which gives them a distinct matte or glossy finish depending on the clear coat, rather than the metallic sheen of aluminum or steel. You should look for the words "Wound Up" printed clearly on the legs of the fork. If these markings are absent, or if your fork is made of different materials, it is likely not part of this specific recall.

The most critical piece of evidence, however, is the serial number. Advanced Composites does not rely solely on production batches for this recall; they have identified specific units by their unique identifiers. You need to locate the serial number engraved on the bottom of the disc brake tab mounted on the fork leg. This small metal or composite tab is where your brake caliper attaches, and the engraving is typically subtle, so you may need a flashlight or magnifying glass to read it clearly. Once you have located this number, compare it against the official list provided in the recall notice. The recalled serial numbers are: AC662, BJ573, CD758, CE779, CE789, CE800, CE805, CE806, CF830, CF831, CG843, CG845, CG848, CG851, CG852, CG853, CG862, CG863, CG865, CH913, CH914, CH915, CH916, CI925, CI926, CI928, CI929, CI931, CI932, CI933, CI973, CI974, CI975, CI976, CK008, CK009, CL056 and CL062. If your serial number matches any of these exactly, your fork is included in the recall.

Additionally, you should check the manufacturing date range. This recall applies specifically to forks manufactured between June 2015 and December 2015. While the serial number is the definitive identifier, knowing the production window can help you narrow down your search if you have records of when your bike was assembled or purchased new. If you are unsure about any of these details, do not guess. Contact Advanced Composites directly at 800-417-1597 between 8 a.m. and 5 p.m. MT, Monday through Friday, or visit www.woundupcomposites.com and click on Recall Information for assistance. It is always better to verify with the manufacturer than to risk riding a potentially compromised component.

What to do — step by step

Your refund, repair, or replacement options

If you have identified that your bicycle fork is part of this recall, the good news is that Advanced Composites has established a clear and consumer-friendly remedy to resolve the issue. The company is not asking you to simply return the defective part for a credit or leave it sitting in your garage. Instead, they are offering a comprehensive solution designed to get you back on the road safely without any financial burden. Specifically, Advanced Composites will provide a free replacement fork for any unit that is found to be defective during their inspection process. This is a significant benefit because it ensures that you are not left with a compromised component or forced to purchase new equipment out of pocket.

The process begins with the inspection. You are required to send your recalled bicycle forks back to Advanced Composites. It is important to note that this inspection is not just a formality; it is a necessary step to determine whether the specific unit you own has suffered from the carbon crown or leg damage that poses a fall hazard. By sending the fork in, you allow the manufacturer to verify the defect firsthand. Once the inspection confirms that your fork is indeed defective, Advanced Composites will ship you a replacement at no cost to you. This replaces the need for any complex repair attempts on your own, which could be dangerous if not done with specialized carbon fiber tools and expertise.

One of the most helpful aspects of this remedy is how shipping costs are handled. The recall notice explicitly states that Advanced Composites will cover all shipping costs associated with both sending the fork to them for inspection and receiving your replacement. This means you do not need to worry about paying for postage, courier fees, or insurance during the return process. The company has absorbed these logistical expenses to remove barriers between you and a safe riding experience. You simply need to contact them to initiate this process.

To get started, you should reach out to Advanced Composites directly. You can do this by calling their dedicated recall hotline at 800-417-1597. Their customer service team is available from 8 a.m. to 5 p.m. Mountain Time, Monday through Friday. This window of availability allows for ample time during the work week to ask questions and coordinate the return. Alternatively, if you prefer digital communication, you can visit their website at www.woundupcomposites.com. From there, look for the "Recall Information" link to find specific instructions on how to package your fork and address the return shipment. By following these steps, you ensure that your remedy is processed efficiently and correctly.

It is worth noting that while the offer is for a free replacement of defective forks, the recall does not currently mention a full refund option if you no longer wish to use the product. The primary path outlined by the manufacturer is inspection followed by replacement. Therefore, if your goal is simply to discontinue use of the fork entirely without acquiring a new one, you should clarify this with their customer service team when you call or visit the website. However, for those who wish to continue riding their tandem bicycle safely, the free replacement program is the intended and supported outcome.

By taking advantage of this remedy, you are not only protecting yourself from a potential fall but also ensuring that your bicycle remains in optimal condition. Carbon fiber components require precise handling and installation, so having the manufacturer handle the transition to a new unit minimizes the risk of errors during reassembly. This remedy reflects a standard of care where the safety of the rider is prioritized over convenience or cost for the consumer.

What can happen if you ignore it

Staying safe: broader tips

While this specific recall addresses a manufacturing defect in carbon fiber bicycle forks, the underlying principle of proactive maintenance applies to nearly every piece of equipment we rely on for safety and mobility. Carbon fiber is an incredibly strong material, but like many high-performance composites, it can be sensitive to hidden stress fractures that develop over time or from impacts that seem minor at the moment they occur. To stay safe beyond this particular alert, treat your bicycle as a system of interconnected parts that require regular, honest inspection. Start by establishing a routine check-up schedule. Before every ride, especially if you have been carrying heavy loads or riding on rough terrain, visually inspect your fork legs for any new scratches, dents, or discoloration. These are often the first visible signs that the internal structure may be compromised. If you hear a cracking sound while riding or notice any change in how the bike handles, stop immediately and do not attempt to ride it again.

Beyond mechanical checks, one of the most effective ways to protect yourself from unexpected product failures is to stay informed about recalls before they become emergencies. Many consumers wait until their product breaks or causes an injury to look for safety alerts, but by then, the window for a free remedy may have closed or the risk has already materialized. Make it a habit to register your new purchases with the manufacturer. This ensures you receive direct notifications if a defect is discovered later. You can also subscribe to email alerts from the Consumer Product Safety Commission (CPSC) and sign up for their mobile app. These tools provide timely updates on recalled items, allowing you to act quickly rather than reacting after an incident has occurred.

Additionally, consider the environment in which you store and use your gear. Proper storage prevents unnecessary wear and tear that could exacerbate potential weaknesses. Keep your bicycle in a dry, temperate area away from direct sunlight and extreme temperatures, which can degrade adhesives and materials over time. Use appropriate racks or stands to support the frame without putting undue stress on the fork or wheels. Finally, share this mindset of vigilance with others. If you know fellow cyclists who own similar models, gently encourage them to check their serial numbers against safety lists. Safety is a shared responsibility, and being aware of potential hazards in your community can help prevent accidents before they happen. By combining regular physical inspections with proactive information gathering, you create a robust layer of protection that goes far beyond any single recall notice.