Patent ID: 8430797

Claim:
A support for a bicycle, comprising: a front unit having a front base and side trusses, a support frame connected on a top of the front base, the support frame having a front adjust rod extending therefrom, multiple holes defined through the front adjust rod; a rear adjust unit having a front portion and a rear portion, the front portion having a first support and an adjust portion extending therefrom, the rear portion having second supports and an adjust link extending therefrom, a transverse rod connected to the first support and the second supports, the transverse rod connected to side trusses on an underside of a rear roller unit; a front roller unit and the rear roller unit each having a base, a movable part, a roller unit, a swinging part, and a fixing frame; each base having a support member extending therefrom and an adjust member connected on the support member, an L-shaped rod extending from the base and a hole defined through the L-shaped rod; each movable part having tubes connected thereto and rods extending through the tubes so as to connect the movable part to a respective base, the movable part having a connection member and an extension rod connected to the connection member; each roller unit having rollers, connection plugs and bolts; each swinging part is connected to a respective L-shaped rod and has a vertical slot defined therein; each fixing frame having a recess defined therein and a resilient member received in the recess, each fixing frame connected to an axle of a wheel by a pin; and a connection unit having an outer tube, an inner tube and a pivotal member, the pivotal member pivotably connected with axles of the rollers of the roller units.