Prepare.
A structured pre-ride check helps you work through the details before you head out.
PRE-RIDE CHECKLISTFOR YOUR HARLEY. FOR THE WORK YOU DO.
More confidence on the road.
More know-how in the garage.
Guided diagnostics, maintenance tools, and workshop records in one place. Built for the weekend rider, the home mechanic, and the professional turning the wrench.
MORE THAN THE MOMENT SOMETHING GOES WRONG
Your motorcycle needs more than a diagnosis. Put the checks, references, and records you reach for into one useful toolkit.
A structured pre-ride check helps you work through the details before you head out.
PRE-RIDE CHECKLISTTrack oil changes and keep your motorcycle’s specifications and service intervals close.
TRACKER & REFERENCESFollow guided questions from symptoms to a probable cause, with no plug-in scanner.
GUIDED DIAGNOSTICSKeep findings with the bike. Save reports, record notes, and give the work a paper trail.
GARAGE & REPORTSFeatures and access vary by plan. Find the right fit for your garage.
A CLOSER LOOK INSIDE
From a Saturday check in your own garage to an estimate for a customer. See what’s inside.

Work through a check, look up the system, and keep a record of what you found. Your tools are there before, during, and after a problem.

Detailed component cards and operational circuit diagrams help you connect the part to the system. Keep the references close to the work.
Relevant component and circuit material is also included in credited diagnostic reports.
See what’s included
Record the motorcycle’s condition, define the authorized work, and build an estimate with parts and labor. Keep it with the motorcycle’s profile.
FOR THE PEOPLE TURNING WRENCHES FOR A LIVING
Your experience does the work.
V-Twin helps you organize it.
Give each motorcycle a clearer record of its condition, the checks you performed, and the work you propose. The Mechanics License brings professional tools into the same garage as your diagnostics and references.
$99.99/year · Ten motorcycle spots included
INTAKE & AUTHORIZATION · CONDITION RECORDGET EQUIPPED
Choose ongoing access for the work you do.
Or activate motorcycle-profile benefits with a one-time Diagnostic Credit.
The everyday toolkit for knowing and looking after your motorcycle.
Billed annually. Renews unless canceled.
More spots available · $14.99 each
Everything in Annual, with the professional tools to document your work.
Billed annually. Renews unless canceled.
More spots available · $9.99 each
Activate profile benefits now. Keep a diagnostic allowance ready when you need it.
Prices shown in USD. Purchases are made in the iOS or Android app; local store prices apply. Use the same account on the web.
Assignment permanently activates the credit’s included motorcycle-profile benefits, whether or not you run a diagnostic. In the ordinary credit-based flow, the diagnostic allowance remains available until used. Eligible license holders can instead use a credit to open an extra spot beyond their allowance; diagnostics during the active license are covered by the license. A spot holds one profile and its records; archiving does not free it. Existing occupied profiles remain when a license lapses. Included benefits, license-only tools and new capacity depend on your entitlement.
Your account includes a starting bike profile, its specifications and Oil Change Tracker, plus DTC lookup and service intervals. Add paid tools when you need them.
MADE FOR YOUR MOTORCYCLE
Fuel-injected Harley-Davidson motorcycles from model year 2007 to current, across the supported engine platforms.
Specific tools and reference content depend on your motorcycle and entitlement.
Supported families include Sportster, Dyna, Softail, Touring, Trike and Pan America within their engine and model-year windows, including supported CVO variants. Twin Cam Touring runs through 2016; Dyna and Softail through 2017. M8 Softail starts in 2018; Touring and Trike in 2017. Factory trike coverage starts in 2009.
Not covered: pre-2007 motorcycles, carbureted models, Magneti Marelli EFI, police/fleet models, V-Rod/VRSC, Street/Street Rod (Revolution X), LiveWire, X350 and X440.
Yes. The toolkit includes pre-ride and general health checks, battery testing, motorcycle references and records. Your account also includes an Oil Change Tracker for the motorcycle in your starting spot. Paid access depends on the plan you choose.
The diagnostic method follows symptoms you can observe through guided questions. Nothing plugs into the motorcycle, and the app does not read live sensor data or clear codes. Some checks and repairs require ordinary tools and appropriate experience.
Download or open V-Twin Diagnostics on iOS or Android, sign in and purchase your plan in the app. Sign in to app.vtwindiagnostics.com with the same account to access your entitlement once the purchase clears. An account is required.
Annual is the starting recommendation for riders and home mechanics. Mechanics includes everything in Annual and adds professional intake, comprehensive checks, estimates, catalog-wide torque lookup and service scheduling, plus ten included motorcycle spots.
No. Guided diagnostics help narrow a probable cause. They do not certify that a component has failed or that a motorcycle is safe to ride. Use the findings to inform the next check or a conversation with your mechanic.
Yes. Assigning a Diagnostic Credit activates its included motorcycle-profile benefits even before you need a diagnostic. In the ordinary credit-based flow, its diagnostic allowance remains available until used. Assignment is permanent; credits do not expire through passage of time. Full Annual and Mechanics tools require their yearly licenses. Store refund rules and applicable consumer rights apply.
THE NEXT RIDE. THE NEXT CHECK. THE NEXT JOB.
Give your motorcycle a home for its tools, references and records.