Hydragas

Hydragas is like the squishy stuff under your feet when you jump on a foam mattress. But instead of being under your feet, it's inside a car or a bike. It helps make the ride smoother by absorbing bumps in the road. When you go over a bumpy road, the hydragas squishes down, absorbing some of the bump, and then comes back up, giving you a nice smooth ride again. So it's like having a cushion for your car or bike, making it a lot more comfortable to ride in.