There are many times when your drivetrain will start making weird noises or just not shift as smooth as you would like, but adjusting the rear derailleur has always been a bit intimidating.
This is often a job that you might outsource to a bike shop and is packaged as a “Tune-Up” and it’s usually the most expensive super deluxe tune-up on the list, ranging from $150 to over $250 bucks!
In the past 30 years, I have ridden all over the US, from west coast beaches of San Diego, the deserts of Barstow/Joshua Tree in California, the Red Rocks of Nevada, all throughout the Rocky Mountains in Colorado and now the gator-filled preserves of Florida.
I ride, Road, Cyclocross and MTB. I lived at 6,500 feet above sea level and my “home riding trails” typically started between 8-10,000ft with anywhere from 2-4,000ft of climbing (a lot for me).