10% OFF
Shop CHIGEE ↗
20% OFF
Shop ALIENRIDER ↗These are affiliate links. I may earn a commission from qualifying purchases.
Tyre Pressure Monitors test with BMW OEM and Alien Rider M2 Pro System to see how accurate they are. The BMW tyre pressure monitors are fitted inside the wheels and the Alien Rider are attached to the external valves in place of the dust caps.