IME, very! Things that work fine when just riding about don't always perform so well in races when you don't always have the time to hit the smoothest lines, make considered gear changes and are going a lot faster under pressure. You ask a lot more of your bike when racing.
IME, very! Things that work fine when just riding about don't always perform so well in races when you don't always have the time to hit the smoothest lines, make considered gear changes and are going a lot faster under pressure. You ask a lot more of your bike when racing.