Smoother Shifts With Redline Harley Transmission Fluid

Most riders I know eventually switch to redline harley transmission fluid because they're tired of that massive "thunk" every time they kick the bike into first gear. It's one of those things where you don't think a bottle of oil can make a huge difference until you actually feel the shift lever click into place without sounding like a hammer hitting an anvil. If you've spent any time on a big V-Twin, you know exactly the sound I'm talking about. It's part of the Harley charm, sure, but it doesn't mean your gearbox has to suffer through it. ...

April 26, 2026 · 6 min · Creer Kotler