A solar reflector plate maintains an excellent reflectance of a reflective layer and has excellent sand resistance and weather resistance. This totally integrated system provides for volume sequestration and for bypassing the reservoir without use of a shunt. The first switch is configured to latch a bit in a series of bits to provide a latched bit. The ABS controller receives current tow vehicle speeds and current trailer wheel speeds, and dynamically adjusts the brakes based on the differences in the speeds. An adjusting pin for widening and narrowing the grip allowance between the control lever and the grip of the handle bar is attached either to the lever piece or to the operating piece pivotally on an axis parallel to the support shaft.