2009 530 exc question?

[bcod151]

Hello I am new to the ktm exc and rode a 2009 530exc. Loved what the bike has to offer just wondering one major point that stuck out in my head. When you let off the throttle the bike seems to almost put on the brakes itself like a belt driven quad. Just wondering if it is made to slow way down after throttle. Any help or info is appreciated and thanks!

[bajadog]

Welcome.

The RC4 , RF4 and XC4 based KTMs (4 valve DOHC) have
fairly high compression engines. Most guys I know only run
91 octane and up in them.

As soon as you chop the throttle, the engine is essentially an
air compressor.