shifting gears without using a clutch

[Flux3D]

I know that if you are at a decently high rpm you can shift without the use of the clutch. I was just wondering if this is bad for the bike and if people ever do this when racing for strategy purposes. Sorry if this is a really dumb question.

 

[Flux3D]

ignore this thread... i used the search bar and found a bunch of info

 

[_JOE_]

Thank-you, pass the word about the search function.