Upgrading and Maintaining Your 39mm Fork Tubes
If you've ever torn down a narrow glide front end, you know exactly how important 39mm fork tubes are to the way your bike handles and looks. For decades, these tubes have been the standard for a huge variety of Harley-Davidson models, specifically the Sportsters and Dynas that so many of us love to wrench on. They're right in that "Goldilocks" zone—stiff enough to handle a bit of aggressive riding but slim enough to keep that classic, narrow profile that makes a lane-splitter look so good. ...