INMOTION hoverboards and electric skateboards

The reports, as CPSC published them

1. Seen by a doctor or nurse

   Made May 11, 2026 · , sent to the company Jun 18, 2026 · , published by CPSC Jul 7, 2026

   The product, in the report: InMotion V14 Adventure electric unicycle 50s Serial: A0311851800217C0

   CPSC Office of Compliance and Field Operations,

   I am reporting a substantial product hazard under 15 U.S.C. Section 2064 and requesting investigation of manufacturer non-compliance with Section 15(b) reporting obligations.

   INCIDENT SUMMARY

   On December 13, 2025, at approximately 40 mph 0.3 miles from my home during normal operation, my InMotion V14 Adventure electric unicycle 50s (Serial: A0311851800217C0, Activated: 2025-05-08, Mileage: approximately 1,292 miles) experienced a sudden, complete loss of motor stabilization without tilt-back, audible warning, or pre-failure degradation. The controller ceased providing stabilization instantaneously, resulting in a high-speed crash. The crash as seen in the video is only 0.3 miles from my home, yet as the images show below, it claims 1.6 miles which is what it would have been had I made it to the store and back home. Luckily it was my father behind me in the vehicle recording and he immediately brought me to the hospital as the injury images show, it would have been impossible for me to have rode another 1.3 miles after the crash.

   INJURY: acute radius break and ulna requiring four-hour surgery, a titanium plate and eight screws, ongoing physical therapy, and pending hardware removal procedure due to massive loss of mobility. I am right-hand dominant and a sawmill owner. I am also an independent researcher in HCI-IC. I have six years of college for a ba in math(csci major specializing in robotics). I am 42 years old and this vehicle was my main means of transportation and only means of transportation to get to [REDACTED] over 12 miles away. My riding data reflect my daily use and not a joyride for thrills. My images of all seven months of my ride data show the hall sensor was silently failing indicated by the mph spikes beyond the 43 mph so called tiltback and beeping alarm you can hear and see was missing in the unedited video. Medical records available upon request. FAILURE MODE: Silent control-path failure - not envelope exceedance. Post-incident: left hall sensor read error present; device exhibited uncontrolled motor runaway to maximum RPM when powered. This indicates single-point control-path failure rather than designed fail-safe behavior (torque reduction, speed clamping, tilt-back, or degraded mode). MANUFACTURER RESPONSE - DOCUMENTED EVASION AND ENDANGERMENT I engaged InMotion customer support (Ticket: [REDACTED] / Request #[REDACTED]) beginning January 3, 2026, providing engineering failure report, video evidence, device photos, and firmware information. Critical timeline: January 6-7, 2026: InMotion technical team reviewed available materials (video, photos, cloud telemetry) and identified specific faulty hardware: Controller Assembly, HMI Board PCBA Assembly, and [REDACTED] Display Board. Replacement of these assemblies was advised to restore app connectivity and support further diagnostics. January 7-14, 2026: Despite having identified faulty boards, InMotion instructed me - while I was recovering from surgery to my dominant hand - to reassemble and power the device to upload logs. Upon powering the controller with all components connected, the wheel immediately accelerated to uncontrolled maximum RPM runaway. I was fortunate my young son was not in the path of the device. This was not a diagnostic step. This was energizing a known-faulty control system in a residential environment. I refused further physical handling of the device after this event. January 20, 2026: Without new technical evidence, InMotion pivoted to undetermined cause framing - either due to faulty internal component or pushing the EUC over its limits - and demanded I purchase a replacement controller to retrieve logs, despite: (a) prior identification of faulty components; (b) documented runaway behavior making the device unsafe to handle; (c) my surgical recovery status. January 30, 2026: One-time exception offer: purchase new V14 50S for 2,499 USD (standard market price). February 28, 2026: New narrative introduced: Our technical team reviewed the historical logs associated with the device and identified multiple instances of overspeed riding, including recorded overspeed warnings. This narrative omits the uncontrolled runaway triggered by their own instructions. It contradicts six months of conservative riding, video evidence, their January 7 hardware-fault determination, and the silent nature of the original cutout. March 4, 2026: Formal evidence preservation notice issued. InMotion refused to confirm preservation, refused corporate legal contact, and reiterated purchase discount offer. March 26, 2026: [REDACTED], Director of North America, initiated unsolicited P6 sales outreach - side-channel engagement after safety-incident escalation was refused. EVIDENCE OF DATA POSSESSION Through network traffic analysis of the InMotion [REDACTED] application ([REDACTED]), I documented continuous real-time telemetry upload to manufacturer-controlled cloud infrastructure ([REDACTED]) and [REDACTED] infrastructure ([REDACTED]). This contradicts InMotion’s repeated claims that post-incident log upload was impossible due to destroyed [REDACTED] connectivity. Approximately February 2026, InMotion implemented certificate pinning/hardening in the application, preventing further independent audit of data flows. A full application overhaul followed. These actions occurred after I cited federal regulatory reporting obligations and documented their data architecture. REQUESTED ACTION 1. Open defect investigation of InMotion V14 control-path architecture, specifically single-point failure modes resulting in instantaneous loss of stabilization without rider warning or agency. 2. Subpoena manufacturer records including: raw ride telemetry for SN A0311851800217C0; internal technical notes from January 6-7 review; communications authorizing withdrawal of hardware-fault determination; and records of any other V14 incidents involving silent cutout or control-path failure. 3. Investigate Section 15(b) non-compliance - InMotion had knowledge of hardware fault and catastrophic failure mode by January 7, 2026, yet failed to report to CPSC and instead pursued consumer-level containment. 4. Preserve third-party records - Notification to [REDACTED] of relevant data custody for SN A0311851800217C0 telemetry. 5. Investigate manufacturer instructions creating secondary hazard - InMotion directed a recovering surgical patient to re-energize a device they had identified as containing faulty control electronics, resulting in uncontrolled motor runaway in a residential environment, my oldest son was present. ATTACHED DOCUMENTATION - [REDACTED] export: Main correspondence thread (67 messages, Ticket [REDACTED]) - [REDACTED] export: Response/offer thread (16 messages, Request #[REDACTED]) - [REDACTED] export: Pending request thread (9 messages) - [REDACTED] export: [REDACTED] P6 outreach (March 26, 2026) - Network traffic analysis summary (TLS endpoints, [REDACTED] ingest, API architecture) Within the pdf’s should be the video link via [REDACTED}. - Incident video metadata and description I am available for interview, additional documentation, or technical clarification. I request confirmation of report receipt and assigned investigation number. Respectfully, [REDACTED]

   Model

   V14

   Serial number

   A0311851800217C0

   Where

   Woodworth, Louisiana: Home/Apartment/Condominium

   Who was involved

   Age 42, Unspecified

   The reporter’s relation to them

   Self

   As this report names them

   Brand InMotion, made or sold by InMotion LLC

   How badly, in CPSC’s words

   Injury, Seen by Medical Professional

2. First aid

   Made Apr 15, 2026 · , sent to the company Apr 17, 2026 · , published by CPSC May 1, 2026

   The product, in the report: Electric self-balancing unicycle designed for recreational use, primarily marketed for beginners and children. The product operates using a single motorized wheel with dynamic balance control. It includes audible warning alerts and tilt-back mechanisms intended to prevent unsafe riding conditions. The device is battery powered and controlled via a mobile application. At the time of the incident, the battery level was approximately 50 percent and the device was functioning normally prior to the sudden shutdown. A critical safety concern is that under certain conditions, the device can abruptly shut down while in motion, which immediately removes balancing capability and results in a fall.

   Product: INMOTION E20 Electric Unicycle An abrupt shutdown occurred while my 8 year old son was riding the device on a slight downhill residential street. Prior to the shutdown, the device emitted warning beeps. However, before the rider had sufficient time to safely decelerate, the unit shut down completely. Because this is a self balancing device, the sudden loss of power resulted in an immediate and unavoidable loss of balance, causing a fall and physical injury. The device had sufficient battery at the time, approximately 50 percent, and there were no modifications or abnormal usage conditions beyond normal residential riding. The incident was witnessed by two children, and photos and app data were captured immediately afterward without any modification to the device. Manufacturer Response: The manufacturer reviewed diagnostic logs and stated in writing that abrupt shutdown under certain conditions such as overload or overspeed is expected behavior and part of the system protection logic. Safety Concern: For a self balancing device, an abrupt shutdown directly causes a fall and creates a foreseeable injury risk. The warning system did not provide sufficient time or margin for safe recovery before shutdown. This raises concern that the product design allows a failure mode where rider injury is unavoidable. I am reporting this as a potential product safety hazard that may warrant further investigation and review.

   Model

   E20

   Serial number

   A14219C100009197

   Bought from

   InMotion Official Website

   Bought

   Jan 2, 2026

   Where

   Irvine, California: Street or Highway

   Who was involved

   Age 8, Male

   The reporter’s relation to them

   My Child

   As this report names them

   Brand INMOTION, made or sold by InMotion LLC

   How badly, in CPSC’s words

   Injury, First Aid Received by Non-Medical Professional

3. Emergency room

   Made Jul 17, 2024 · , sent to the company Jul 22, 2024 · , published by CPSC Aug 5, 2024

   The product, in the report: Inmotion V5F electric unicycle at https://store.inmotionworld.com/products/inmotion-v5f?_gl=1*drc7pp*_up*MQ..&gclid=CjwKCAjw1920BhA3EiwAJT3lSUzBN-pq5ZLT15V8HXAgKjpdMOBJGqFRZ3r-_aA1Is8zJu_6S5ejNBoCHh4QAvD_BwE

   On Sunday 6/23/2024 I was riding the Inmotion V5F electric unicycle at full speed when wheel suddenly powered off causing me to go sliding face first on the asphalt and causing me to go to hospital with serious injuries.

   Model

   V5F

   Serial number

   17916A5CD1DA0055

   Bought from

   https://store.inmotionworld.com/products/inmotion-

   Bought

   Jan 27, 2024

   Where

   San Angelo, Texas: Street or Highway

   Who was involved

   Age 69, Male

   The reporter’s relation to them

   Self

   As this report names them

   Brand Inmotion, made or sold by Hong Kong Lemotion Co. Ltd.

   How badly, in CPSC’s words

   Injury, Emergency Department Treatment Received

CPSC’s disclaimer

Sources