Here's a pic... They look like they fit, I don't know if the speakers are different between the 10 and the 20 or not... But these rock around and will come out... If I press them any harder I'd break them or dent the speaker itself... I don't blame sena or shoei, i just can't get a good fit unless I use the spacer they included... I could probably permanently mount them in with tape, I might try that before selling it