This is from the site Bring a Trailer (https://bringatrailer.com/) ...
This 1975 Honda Z50A Mini Trail was recently restored and is powered by a four-stroke 49cc OHC single paired with a three-speed transmission. The project was completed in 2019 and included refinishing the frame, telescoping front fork, and wheels. New parts include the gas tank, seat, handlebars, tires, and more. Z50 off-road mini bikes were first released in the 1968 model for the American market, and by 1972 featured full suspension and front and rear lighting. This Honda Z50 Mini Trail is now offered by the selling dealer at no reserve in Seekonk, Massachusetts with a bill of sale.
The AK6 variant of the Z50A was produced only in Candy Ruby Red. Trail Performance Coatings of Papillion, Nebraska reportedly media blasted and powder coated the frame, telescoping front fork, swingarm, and foot pegs during the restoration. Fasteners and both axles were zinc plated by Industrial Plating in Omaha. A new fuel tank was acquired and installed along with new decals. The chrome fenders were replaced, and a reproduction side cover and taillight were also installed.
The 8″ wheels were power coated silver and mounted with new Bridgestone Trail Wing 2 tires and tubes. The wheel hubs were also refinished and fitted with new bearings. The front and rear drum brakes received new shoes. The video above includes a walk around, restoration information, and an engine start.
A new black vinyl seat was installed during the restoration and features the Honda logo embossed on the back.
The handlebars, grips, and hand levers have also been replaced. The handlebars can fold down, making the bike more compact.
The four-stroke 49cc single-cylinder engine features a single overhead camshaft and was rebuilt as part of the restoration. The block was vapor blasted and fitted with a new cylinder head, piston, and rings. The carburetor was rebuilt and installed along with a new ignition system, including a coil and NGK wires. The three-speed transmission features a centrifugal clutch, and the engine’s serial number (Z50AE-6002933) is reportedly correct for a 1975 Z50A.