The Factor 748 wheel set is designed for off-road activities. It mainly serves for the assembly of downhill bikes, fat bikes and sand cruisers. The characteristics of these bikes are a large diameter and a wider width of the wheels, especially for the fat bike and the beach cruiser. These two wheel set series are dedicated to their own specification that does not have anything in common with other series. These two wheel sets can only be used for their own specification, but cannot be combined with other off-road series, which results in an inconvenience for the user. Therefore, we combined the similar points of these three series and designed the Factor 748 wheel set. It can be combined and connected with these three series.