OK, it's much more challenging than default game, this mod has potential...but, it's unplayable for me.. First of all, I can't change bike settings cause my mechanic is invisible for some reason. I drive with front hard tire but I can't change it so I wear my front to quickly in races. Second, AI accelerates too fast, they constantly go wide and out of track in slow corners, and still manage to accelerate and catch up with me on the straights even dough I hit the apex just right... This needs tweaks or maybe more different levels of the mod... Like 1 second faster AI, 2 seconds faster AI, etc...
Its fixed in v1.1!