Fork and shock oil keeps your suspension moving smoothly and predictably. These fluids dampen the compression and rebound of your forks and rear shocks, controlling how quickly they absorb bumps and return to their original position. The wrong oil—too thick, too thin, or contaminated—changes how your suspension feels and performs, affecting everything from handling to comfort to safety.
The articles here cover what makes fork and shock oils different from engine oil, how viscosity grades work and why they matter for your specific bike, how to identify what your suspension currently holds, and what happens when you switch between oil weights or brands. You'll learn why some riders change their suspension oil seasonally and how to spot signs that your forks or shocks need fresh fluid.