Abstract: A cushion assembly for motorcycles includes an outer tube having a recess defined through a first end thereof and a hydraulic cylinder is received in the recess. A valve is connected to the cylinder and communicates with a locking hole defined in a second end of the outer tube. A cap is engaged with an opening in the first end of the outer tube and has a through hole so that an inner tube is movably inserted through the through hole in the cap, received in the recess and engaged with the cylinder. The length of the outer tube and the recess are made longer so as to be installed to a modified version of motorcycles.

Abstract: A frame for a motorbike front fork includes a first board and a second board which is connected to the first board by a rod. Two legs of the front fork extend through a first board and are engaged with a second board. The first hoard has two holes with tapered inner periphery and the second board has two tapered recesses for the two legs engaged therewith. Two pairs of tapered clamping members are respectively engaged with the two tapered recesses and the two tapered holes. Each tapered clamping member has a threading ring mounted thereto and the threading ring is engaged with the tapered holes and the tapered recesses so as to narrow the clamping members and securely position the legs.