Knowledge Centre

A running problem does not automatically require different jets. Start with the symptoms, fuel supply and intake sealing before changing carburettor settings.

Why favour E5, and what else needs checking? A practical guide to ethanol, older fuel-system components, octane requirements and storage care.

A practical guide to cleaning your Harley in winter, choosing surface-compatible products and keeping corrosion treatments away from brakes and tyres.

AGM or lithium? Check battery chemistry, charging current, maintenance modes and connection compatibility before buying a charger for your Harley.

Putting your Harley away for winter? Plan battery care, fuel preparation, cleaning, tyre checks and a sensible return-to-road checklist.

A chain conversion needs a complete plan. Understand fitment, sprocket ratios, alignment and maintenance before changing your Harley-Davidson’s final drive.

A tyre can have tread left and still need attention. Check cold pressures, investigate recurring air loss and assess damage, age and service history.

The numbers on a tyre describe more than its diameter. Read the complete marking and check the approved application before choosing a replacement.

Compare fixed and detachable aftermarket sissy bars and passenger backrests. Check mounting kits, pad position and compatibility with seats and luggage.