This is an adapter that allows you to bolt on a 3+2 4X144mm modern front wheel onto your Honda Honda ATC/Honda Odyssey/ Yamaha Tri-moto, the spacing is set for proper centered alignment when installed on the front of a 3 wheeler. This adapter is dual pattern on the mounting side which allows you to use it on either 8mm or 10mm wheel studs. It is made from 6061 T6 aluminum for high strength and weight savings. It works with most wheels (may not work with some old style wheels with small circle center hole) 1 PC.