The hardness of skateboard wheels is typically measured on the durometer scale, with the most common ratings being 99a, 100a, and 101a. The higher the number, the harder the wheels. 101a wheels are the hardest, providing less grip but more speed, while 99a wheels are softer and provide more grip but less speed. 100a wheels fall in between, offering a balance of grip and speed. The choice of hardness depends on the type of skating and personal preference. **

The difference in rolling between 100a and 101a in skateboards is generally considered to be significant. The "a" rating refers to the hardness of the skateboard wheels, with 100a being softer and 101a being harder. Harder wheels (101a) typically roll faster and have less grip, making them better for smooth surfaces and technical tricks. Softer wheels (100a) provide more grip and shock absorption, making them better for rough surfaces and cruising. Therefore, the difference in rolling between the two hardness levels can have a noticeable impact on the performance and feel of the skateboard. **

The durometer hardness of skateboard wheels is typically measured on the A scale. The most common durometer hardness for skateboard wheels is 99a, which provides a good balance of grip and slide. However, skateboard wheels are also available in 100a and 101a durometer hardness for different preferences in riding style and terrain. **

The wheels with 101a are harder than the ones with 99a. The durometer rating measures the hardness of the wheels, and a higher number indicates a harder wheel. Therefore, the wheels with a 101a durometer rating will be more suitable for smooth surfaces and provide faster speed, while the 99a wheels will offer more grip and control on rougher terrain. **

The hardness of Spitfire Formula 4 skateboard wheels is typically 99a. This hardness level provides a good balance between grip and slideability, making them versatile for various skateboarding styles and terrains. The 101a hardness is slightly harder and may be more suitable for smooth surfaces or advanced skaters looking for a faster ride with less grip. **

Yes, there is a form of extreme hiking camping known as backpacking or wilderness camping. This type of camping involves carrying all necessary gear and supplies on your back and hiking long distances to remote and rugged locations. Backpacking often requires a higher level of physical fitness, outdoor skills, and self-sufficiency compared to traditional camping. It can be a challenging and rewarding way to experience the wilderness in a more immersive and adventurous way. **

While camping and hiking, you can enjoy various outdoor activities such as fishing, bird watching, stargazing, and wildlife spotting. You can also explore the natural surroundings by taking nature walks, swimming in nearby lakes or rivers, and even trying out some outdoor cooking. Additionally, you can challenge yourself with hiking to scenic viewpoints, setting up a campfire, and simply relaxing and enjoying the peacefulness of nature. **

To change your hair color from golden blonde to light blonde with Garnier 101a Extra Cool Light Blonde, you can start by doing a strand test to ensure the desired result. Then, follow the instructions on the packaging, making sure to apply the dye evenly from root to tip. Leave the dye on for the recommended amount of time, and then rinse thoroughly. Keep in mind that the result may vary depending on your starting hair color and condition, so it's always best to consult with a professional hairstylist if you're unsure. **