Rider Wiki

The Harley bible.
All in one place.

Engine, transmission, brakes, models, mods, touring and style. 190 guides 100% focused on Harley-Davidson.

Categories

See all
Engine
Evolution, Twin Cam, Milwaukee-Eight
Transmission
Shifting, neutral, oil, adjustments
Cleaning & Detailing
Chrome, blacked engine, leather, tires
Brakes
Pads, bleeding, ABS, upgrades
Tires & Wheels
Pressure, brands, wear, whitewall
Lights & Headlights
LED, aux lights, aiming, smoked
Bars & Grips
Ape hanger, ergonomics, heated grips
Exhaust
Sound, legal, 2-into-1, pops & bangs
Electrical
Battery, fuses, starter, wiring
Suspension
Preload, air ride, comfort
Accessories
Saddlebags, crash bars, windshield
Mods & Custom
Blacked-out, club, touring, perf

Featured

Harley Engine Types
An overview of all the modern Harley engine families.
Evolution vs. Twin Cam vs. Milwaukee-Eight
A head-to-head comparison of the three Big Twin generations.
Normal Sounds vs. Problems
Learn to tell a healthy rumble from a warning sign.
Common Leaks
Where Harleys usually drip and why.
Excessive Heat
Why your Harley runs too hot and how to fix it.
Best Oil by Climate
The right oil changes with the average temperature.