I got this Dorado 500 l bike in a trade. Ive researched for hours and cant find anything about it. Its a strange little bike. 16" frame with 20"wheels 5 speed gearing. The brake levers are ACS locking which were used on old school bmx the crankset is csh which is a generic japanese crank made by a manufacturer of all kinds of cranks for winches and many other. Shimano es shifter shimano skylark rear derailleur. If you know anything Id appreciate your input.