V-Twin Diagnostics — Last updated: November 2, 2026
These terms are between you and Classified AI LLC, a Wyoming limited liability company, United States. By downloading, installing, or using the V-Twin Diagnostics mobile or web application ("the App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the App.
V-Twin Diagnostics is a mobile and web reference and diagnostic tool designed to assist motorcycle owners and mechanics in diagnosing fuel injection, electrical, and mechanical issues on fuel-injected Harley-Davidson motorcycles from the 2007 model year to current — Evolution Sportster, Twin Cam, Milwaukee-Eight and Revolution Max engine platforms. The App provides symptom-based guided diagnostic paths that identify probable causes, circuit references, component cards, torque specifications, DTC code lookups, and service interval references, garage profiles, Oil Change Tracker, inspection checklists, and Professional Shop Tools for intake, estimates and service scheduling.
An account is required to use the App. The free account includes a starting motorcycle profile, its specifications and Oil Change Tracker, plus DTC lookup and service intervals. Other tools require the applicable entitlement.
Purchases provide access to digital features and services for your motorcycle. A Diagnostic Credit is a one-time bundle of profile benefits and diagnostic access; it is not priced solely as a fee for completing a diagnostic. A Home Mechanic or Professional Shop License provides the features included in that license for its paid term.
Purchases are made in the iOS or Android app through Apple or Google. Prices listed here are USD reference prices; your store displays the applicable currency, price, taxes, renewal terms and available product before you confirm. Sign in to the same V-Twin account to use your entitlement on supported devices and the web.
The four Home Mechanic Tools are Pre-Ride Checklist, Battery & Charging Test, General Health Check and Pre-Purchase Inspection. Coverage and individual references depend on your motorcycle. The free starting profile includes its specifications and Oil Change Tracker, plus DTC lookup and service intervals. Paid profile and license features are identified in the app.
What a Diagnostic Credit includes: A Diagnostic Credit is a bundled entitlement. It can be assigned to an existing motorcycle profile or used to open an eligible additional profile and its parking spot. Assignment activates the paid profile benefits associated with that entitlement, such as the profile's specifications and applicable torque references, service records and Oil Change Tracker, together with its included diagnostic allowance. Some reference and tracking functions are also available on the free starting profile; purchasing a credit does not make every tool in the app available. Home Mechanic Tools and Professional Shop Tools remain subject to their respective license requirements.
When the entitlement is used: For these Terms, assignment to a motorcycle profile or use to open an eligible parking spot activates and consumes the credit's entitlement benefit. This happens when those benefits are made available, whether or not you later run a diagnostic. Assignment is permanent and non-transferable. An activated purchase is not wholly unused merely because no diagnostic has been completed.
The diagnostic allowance is separate: In the ordinary credit-based profile flow, the included diagnostic allowance remains available after assignment until used to reach a probable cause and generate the report. Stopping before that result does not use that diagnostic allowance and does not reverse assignment or activation of the other benefits. Using the included diagnostic allowance does not, by itself, remove the profile's other continuing benefits.
Parking spots and license holders: A spot holds one motorcycle profile, including an archived profile; archiving does not free the spot. An eligible license holder may apply an available credit to open an additional spot beyond the included and separately purchased spots. In that conversion, the credit is used for the additional spot rather than reserved as a separate diagnostic allowance; diagnostics during the active license are provided by the license. Separately purchased additional spots do not include Diagnostic Credits.
Purchase delivery: A purchase is delivered when its credit balance, spot or license access is made available to the correct account. Delivery, assignment or activation, and use of a diagnostic allowance are distinct events. Store transaction completion or acknowledgement does not require waiting for a diagnostic to be performed.
Duration: Diagnostic Credits and separately purchased spots are one-time purchases and do not renew. Assignment does not impose a recurring fee. Continuing profile benefits are available subject to the supported service, the applicable entitlement and these Terms; “does not expire” is not a promise of perpetual operation of the service. Spending a diagnostic allowance does not itself erase your motorcycle profile or saved report. Ending a license ends its subscription-only tools, but occupied profiles and their retained records are not erased solely because of that expiration.
Renewal and cancellation: Home Mechanic and Professional Shop Licenses renew annually unless cancelled through the store before its renewal deadline. Check your store account for the renewal date and cancellation instructions; Apple advises cancellation at least 24 hours before renewal. Cancellation generally stops the next renewal and leaves paid access available through the current term, subject to refunds or other store adjustments. Account deletion, uninstalling the app and archiving a motorcycle do not cancel store billing. Price changes and any required notice or consent are handled under applicable store rules and law.
Refund requests: Apple customers should request refunds through Apple's refund process. Google Play customers can use Google's refund process or contact us for assistance; developer-issued refunds may be available through Google Play. Requests are subject to the relevant store's rules and applicable consumer law. Contact support@vtwindiagnostics.com about non-delivery, duplicate charges, an incorrect assignment or a faulty or misdescribed purchase. Do not send passwords or full card details.
Activated benefits and refund review: When a credit has been assigned or used to open a profile or spot, paid benefits have been activated even if the customer has never run a diagnostic. We may take that activation and other relevant use into account when communicating our refund preference to a store. We do not treat the absence of a completed diagnostic as proof that no purchased benefit was delivered or used. An unassigned credit, an activated profile entitlement and a used diagnostic allowance should be distinguished in any applicable purchase records.
Your rights remain: Calling an entitlement consumed or activated does not make every purchase non-refundable, automatically waive a statutory cancellation or withdrawal right, or determine the store's refund decision. Any consent or acknowledgement needed to begin digital supply or affect a withdrawal right must be obtained through the applicable process. Store remedies and mandatory consumer rights remain available. A refunded or reversed purchase may result in the associated credit, spot grant or license entitlement being revoked, subject to applicable law.
Refund information and consent: Where permitted, we or our purchase-management provider may supply relevant delivery, assignment, activation and usage information to the store for a refund or dispute review. If sharing requires consent, we will obtain the required consent and honor its withdrawal. A request for a refund is not itself a blanket consent to additional processing. Contact support@vtwindiagnostics.com about that information or to withdraw consent. See the Privacy Policy for processing details.
An account is required for all access. Use the same V-Twin account for your cloud garage profiles, diagnostics, schedules, saved inspections, shop documents and purchase entitlements across supported devices. Service history and personal notes entered only in local motorcycle-profile storage do not sync; keep your own backup of records you need. Internet access is required for account, purchase and server-backed features.
Tool availability depends on your entitlement and supported motorcycle. A change in license status does not transfer an assigned credit between motorcycles. Account deletion, uninstalling the app and archiving a motorcycle do not cancel recurring billing.
Your Oil Change Tracker and, with a Professional Shop License, the Smart Service Scheduler send email reminders by default, starting 500 miles before each service that is due, based on the mileage you enter. Reminders are part of the service you sign up for until you turn them off for a motorcycle in the app, at any time. Reminders depend on the mileage and service records you enter and can be delayed or fail. They do not replace the manufacturer's maintenance schedule.
The App is a reference, inspection and recordkeeping aid. Guided diagnostics identify probable causes from the information you provide; they do not establish a confirmed fault or certify that a motorcycle is safe to ride. Checklist completion is not a professional inspection certificate. The App does not connect to your motorcycle through any hardware device.
Use current manufacturer procedures, appropriate equipment and your own qualified judgment. Verify safety-critical findings and torque specifications against the correct factory service manual, including units, fastener condition, tightening sequence and model applicability. Stop work and obtain qualified help when the procedure or condition is uncertain. Do not use the app while riding.
Maintenance schedules and reminders depend on the mileage, intervals and settings supplied; delivery can be delayed or fail. They do not replace the manufacturer's schedule or your responsibility to check maintenance needs. These statements explain the tool's limits and do not exclude responsibilities or consumer remedies that the law places on us.
Intake, estimate and authorization forms are working templates, not legal advice, a repair license, or a guarantee that your local repair-shop requirements are satisfied. The shop must verify customer identity, authority, scope, pricing, taxes and required disclosures; obtain any required approval before work; and keep appropriate records. Estimate calculations are based on the entries you supply and must be checked before presentation.
The app records a shop's indication that a customer signed a paper copy. It does not obtain or verify an electronic signature, collect payment from that customer, or independently verify consent to repairs. Once approval is recorded, the saved form is locked; assignment to a motorcycle is permanent. Unassigned drafts can be deleted through their controls. Contact support about an error or a statutory correction or deletion request.
Only enter customer information you are authorized to use. Give customers the notices required for your business, protect exported or printed reports, and avoid unnecessary sensitive information in free-text fields. You retain rights to the customer and business content you supply and allow us to store and process it to provide the service, subject to the Privacy Policy.
While we strive to provide accurate and up-to-date diagnostic information, torque specifications, and service data, we cannot guarantee that all information is free from errors. Specifications may vary by model year, sub-model, and aftermarket modifications. Always verify critical specifications against your motorcycle's factory service manual.
Keep account credentials confidential and account details accurate. Notify support of suspected unauthorized access. Use your own account; your responsibility for activity does not excuse a security failure for which we are legally responsible.
Account Settings provides an account-deletion request. The Privacy Policy and Delete Account page describe retained server records and the existing three-year account-closure retention period. Local service history and motorcycle-profile notes are distinct from server-side records. Closing an account does not cancel its Apple or Google subscription.
Diagnostic results preserve the generated result, while attached notes remain editable. Assigned inspection and shop records have their own editing controls; archiving does not erase them. Limits in the interface do not override statutory access, correction or erasure rights. Contact support about these requests.
You agree not to:
Our content within the App — including diagnostic trees, circuit details, text, graphics, logos, and software — is the property of Classified AI LLC and is protected by copyright and intellectual property laws. This does not claim ownership of customer or shop content you supply. Third-party material remains subject to its owners' rights. "Harley-Davidson," model names, and related trademarks are the property of Harley-Davidson Motor Company and are used for reference purposes only.
Consumers: Nothing in these Terms excludes remedies that applicable law gives you for faulty or misdescribed digital content or services. We do not exclude or limit liability for fraud, fraudulent misrepresentation, death or personal injury caused by negligence, or any other liability that cannot lawfully be excluded or limited. A disclaimer about diagnostic uncertainty does not waive these rights.
Business use: For business customers, and only where lawful, we exclude indirect, incidental, special, consequential and punitive damages arising from use of the App, and limit total liability for claims related to the App to $50. This business limitation does not apply to the non-excludable liabilities described above or to rights that applicable law grants a qualifying small business.
We may restrict or suspend access when reasonably necessary to address a material breach, fraud, unlawful use or a security threat. Where practicable, we will explain the reason and allow a reasonable opportunity to resolve it. Urgent action may be necessary to protect the service or others. Suspension or termination does not remove accrued rights or any refund or other remedy required by law.
Changes will appear here with an updated date. Material changes affecting paid access will be subject to any notice, consent, cancellation and remedy requirements under applicable law. Revised terms do not retroactively remove rights that have already accrued.
These Terms are governed by Wyoming law and applicable United States federal law. If you are a consumer, this choice does not deprive you of mandatory protections under the laws of your country or state of residence. Nothing here requires you to bring a claim in a court that applicable consumer law does not require you to use, or prevents you from seeking help from a regulator.
If a provision is unenforceable, the remaining provisions continue to apply to the extent lawful. These Terms, the product disclosures presented at purchase and the applicable store terms govern the relevant purchase and use. They do not exclude a representation or right that cannot lawfully be excluded. The Privacy Policy explains data handling; acceptance of these Terms does not replace any separate consent required for that processing.
If you have questions about these Terms of Service, please contact us at:
Email: support@vtwindiagnostics.com
Website: vtwindiagnostics.com