It is important to adhere to the posted speed limits while riding a motorcycle on the highway or any other road. Speed limits are set for various reasons, including ensuring the safety of all road users. Excessive speed can increase the risk of accidents and reduce the time available to react to unexpected situations.
That being said, it's also crucial to consider other factors while riding, such as traffic conditions, weather conditions, road quality, and your own riding skills. Sometimes, riding slightly below the speed limit may be appropriate, especially in adverse conditions or heavy traffic.
Ultimately, it's important to prioritize safety and follow the local laws and regulations regarding speed limits. Always ride at a speed that is safe and comfortable for you while taking into account the prevailing conditions on the road.