I have the MotorcycleAnchor stems also and love them. Much easier to air down and air up for dirt riding. I mounted them at a slight angle directed at the gap between the spokes for easy access. Many K miles including Alaska with much dirt and have had zero problems. Muuuuuuuch easier access especially on the rear. One of the best mods I made.
2007 BMW R1200 RT,
2002 Suzuki DRZ400S, 2000 Suzuki DR200
1985 BMW R80RT, 1975 BMW R75/6