Bakuon!! is a cute girls show. It has messages about friendship, moe moments, and a bit of fanservice. It is not any sort of game-changer, and doesn't have any sort of deep meaning, but that does not mean that it is not a damn good time.
The best thing about this anime is that the girls are absolute bike nerds. They argue about which manufacturer makes the best bikes, and they are loyal to the point of idiocy. They talk about the specs of their bikes and enthuse over bike magazines. It's hilarious.
The humor of this series is absolutely on point. Jesus Christ is a character in this anime. He tell the main character that God loves motorcycles and presents her with the holy grail. What more can I say?
In short, this anime is a good time if you're looking to blow off steam or need a smile. A solid 8/10