This is the aliment tools I need to do the installation, you ses the aliment tools and the 10inch flat bare what to hold a pressure on the tools and relucteur for a minute or tow just after it was side on. That save my hand from the heat the time the wheel fully set on the cranks. No wheeldiing tack to hold it in place for me, 0.008 of press fit sound like plenty to hold the relucteur in place safely. Time will tell.