Hey this is a pretty cool game! I love how it feels and looks and what-not.
One suggestion:
Make it more intuitive as to how fast you need to go to pass the next part, some of it feels like a guessing game of "How fast do I need to go to make that jump without landing on my neck?"
Maybe add some signs with a color of needed speed.
You have good chances! 😎
(Btw, I love biking, so that makes this project just a bit better. 🚴♂️)