Slower rider on faster bike versus faster rider on slower bikes! In the name of science, Steve Matthes pitted his 2024 Yamaha YZ450F against Kris Keefer on a 2024 YZ125, a 1990 YZ125, and a 2024 YZ85 (!) to find the tipping point. On which bike the slower guy can beat the faster guy. Can he beat him at all? Internet celebrities and current pros have weighed in. Now the talk stops and the battles begin. Check out the whole thing on our YouTube Channel. It’s science! 📺 @pulpmx @kkeefer120 🎥 @cudby #RacerXfilms