To give you the most up-to-date and accurate information possible, the data used to compile this article was sourced from Buell Motorcycles and other authoritative sources. So we had three bikes in ...

As for a used bike, I'd like to focus on 2017, which was the last year for the Twin Cam 110™ as well as the last hurrah for ...

A high-flow air cleaner will help improve your Harley-Davidson performance while better protecting the engine. Here are five of the best to consider.

Harley-Davidson's Screamin' Eagle Stage IV engine is big and can be retrofitted into many of the company's recently released bikes. Here's what to know.

The Screamin’ Eagle 135ci Stage IV Performance Crate Engine is intended for bolt-in installation in an original equipment-style 2021-later Harley-Davidson® Touring chassis. No special fabrication or ...

Harley-Davidson invites you to enhance the 2023 MotoAmerica King of the Baggers season with some adrenaline pumping action. Check out, ‘Push the Limit,’ a film that shares the story of defending 2021 ...

The new Harley-Davidson Screamin’ Eagle 135ci Stage IV Performance Crate Engine promises the most power ever from a street-compliant mill from H-D.

Harley-Davidson puts the Screamin' Eagle 135 Stage IV crate engine on a bench and gives us a glimpse at its inner workings ...

Screamin’ Eagle® 135ci Stage IV Performance Crate Engine Componentry New 68mm throttle body and matching CNC-machined intake manifold, originally developed for Harley-Davidson Screamin’ Eagle factory ...