Re: Wireless Speedometer?
My experience with 'wireless' wasn't good but I run frame mount 2 strokes. Their ignition systems are notorious for producing some 'dirty' RF that makes the wireless speedos go nuts. In your case only experimentation will answer your question.
What I can say is that when my engines were not running the wireless device performed well and it was a cheap-o Wally World Bell item.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"