V-Twin Diagnostics

Your bike's down. The dealer's booked two weeks out. And they charge hundreds just to tell you what's wrong.

Every Harley rider knows this math: $100 to $300 for the tow, days or weeks on the lift waitlist, then a diagnostic fee just to be told what your bike was already trying to say.

V-Twin Diagnostics ends that. Answer questions about what your bike is doing, what you see, hear, and feel. The app walks the same systematic process a trained tech uses and lands on the probable cause in minutes. No code reader. No hardware. No waiting.

ONE DIAGNOSTIC PASS. EVERYTHING BELOW IS IN IT: • Guided Diagnostic Path: proprietary step-by-step troubleshooting built for your exact year and model • Comprehensive Diagnostic Report: complete specs, related trouble codes, the full path you followed, and findings, saved to your bike's profile • Circuit Diagrams and Component Cards: see the actual system behind each probable cause • A Parking Spot in Your Garage: your bike's profile with full specs, notes, and history • Diagnostic History: every run saved, ready to review or export as a PDF

PAY ONLY WHEN YOUR BIKE NEEDS IT. NO SUBSCRIPTION REQUIRED. • Diagnostic Pass, $9.99: one complete diagnostic. Never expires. • 3-Pack, $24.99: bank them for when it counts. • Annual License, $59.99/yr: unlimited diagnostics for every bike in your garage, less than half of one dealer diagnostic fee, plus the annual-only Mechanic's Checklists.

FREE FOR EVERY RIDER, NO ACCOUNT NEEDED: • DTC code lookup: 71 trouble codes in plain English with probable causes • Torque specs: 119 specs for Twin Cam and Evolution Sportster • Recommended service intervals by mileage

FREE WITH AN ACCOUNT: a parking spot for your bike and the Oil Change Service Scheduler, free oil-change reminders matched to your bike and mileage.

Covers 2007–2017 Harley-Davidson motorcycles with Delphi EFI: Touring, Softail, Dyna, and Evolution Sportster, including CVO variants.

It's YOUR bike. It's been talking to you this whole time. Now you speak the language.

V-Twin Diagnostics is an independent aftermarket reference tool, not affiliated with or endorsed by Harley-Davidson.

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