August 4, 2026 – A rider of a recently purchased Jasion Retrovolt Pro e-bike suffered severe injuries, including a broken hand requiring orthopedic surgery, when the front wheel detached mid-ride on July 10th, 2026. The incident is attributed to a critical defect in the manufacturer’s official video assembly manual, which allegedly demonstrated an incorrect, backwards installation of the front fork/wheel assembly.
Product Details
Incident Overview
On July 10th, 2026, a consumer was riding their Jasion Retrovolt Pro e-bike, which they had assembled approximately 20 days prior. The assembly process reportedly followed the step-by-step visual and verbal instructions provided in Jasion’s official video assembly manual precisely. The core issue, as reported, lies within this video manual, which allegedly contained a “severe, dangerous defect” by incorrectly demonstrating the front fork/wheel assembly facing backwards.
While riding the e-bike between 4-5 PM, the “extreme force caused by the backward alignment” led to a sudden and complete detachment of the front wheel from the front fork dropouts, without any prior warning. This catastrophic mechanical failure resulted in the rider being violently thrown from the bike. The impact caused significant physical trauma, including a broken hand that necessitated orthopedic surgery, extensive road rash, and multiple contusions. The incident highlights the critical importance of accurate assembly instructions, especially for products like e-bikes where mechanical integrity directly impacts rider safety.
Safety Concerns
This incident with the Jasion Retrovolt Pro e-bike raises severe safety concerns that could affect any consumer who has purchased and assembled this product, or similar products, using the same or similar manufacturer-provided assembly guides.
- Immediate Dangers: The most immediate and alarming danger is the potential for catastrophic loss of control while riding. A sudden detachment of the front wheel, as reported, will inevitably lead to an abrupt and violent fall. This can result in severe injuries, including broken bones (as seen in this incident), head trauma, spinal cord injuries, internal injuries, and extensive road rash. Such incidents can occur at any speed, but higher speeds would undoubtedly exacerbate the severity of the impact and subsequent injuries.
- Long-Term Risks: Victims of such falls may face long-term health consequences, including chronic pain, limited mobility, post-traumatic stress, and ongoing medical expenses for recovery, rehabilitation, and potential future surgeries. A broken hand, for instance, can impair daily activities, professional capabilities, and overall quality of life for an extended period.
- Who Might Be Affected: Any consumer who has purchased a Jasion Retrovolt Pro e-bike and assembled it themselves using the official video manual described is potentially at risk. Individuals who are less experienced with bicycle mechanics or who strictly follow assembly instructions without independent verification are particularly vulnerable. The defect suggests that even diligent adherence to instructions could lead to a dangerous outcome.
- Property Damage Potential: Beyond personal injury, a sudden mechanical failure and fall can cause significant damage to the e-bike itself, rendering it unrideable or requiring costly repairs. Other personal property carried by the rider could also be damaged or destroyed in the impact.
The fundamental safety concern here is the alleged presence of a critical error in the manufacturer’s provided assembly instructions. When assembly instructions lead to a fundamentally unsafe configuration, the product itself becomes inherently dangerous, irrespective of the user’s careful adherence to those instructions.
What Consumers Should Do
If you own a Jasion Retrovolt Pro e-bike, especially if you assembled it yourself or had someone assemble it using the manufacturer’s video instructions, your immediate safety is paramount.
1. Stop Using the Product Immediately: If you own a Jasion Retrovolt Pro e-bike, particularly one assembled via the described video manual, do not ride it. Even if you haven’t experienced an issue, the reported defect suggests a significant safety risk.
2. Inspect Your E-Bike’s Front Fork/Wheel Assembly: Carefully examine how your front wheel and fork are oriented. The handlebars should turn freely without interference from the fork, and the fork’s curve (if present) should typically face forward, away from the rider, providing proper trail for stable steering. If you are unsure or suspect your front fork is installed backwards, seek professional assistance.
3. Seek Professional Bicycle Assembly/Inspection: Consider having a qualified bicycle mechanic inspect your Jasion Retrovolt Pro e-bike, focusing specifically on the front fork and wheel assembly, to ensure it has been correctly installed and is safe for use.
4. Reference Written Manuals: If available, cross-reference the video assembly instructions with the written manual to identify any discrepancies. A written manual might provide clearer diagrams or warnings.
5. Contact the Manufacturer/Retailer: Reach out to Jasionbike.com or Shenzhen Infino Technology Co., Ltd. to report your concerns, inquire about corrected assembly instructions, and seek guidance on safe assembly or potential remedies for products assembled incorrectly.
6. Report Incidents: If you or someone you know has experienced a similar issue or injury with this product, please report it to the U.S. Consumer Product Safety Commission (CPSC) at SaferProducts.gov. Detailed incident reports are crucial for identifying patterns and prompting official safety actions.
Manufacturer’s Response
No manufacturer response has been provided in the incident report.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.
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Contact us today for a free consultation: 424-325-3112
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Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.

