BBR Tuning 66/80cc Black Motorized Bicycle Kit &ndash; 2 Stroke Gas Powered Bike Motor Engine RELIABLE: All of the BBR Tuning bike engines feature the latest upgrades, including Japanese crank bearings and clutch components. We make certain that all of our manufactures abide by strict quality control assurance measures and use the highest quality material so that we can make certain that all of our customers get only the best. Made for experienced riders and builders, our BBR Tuning 66cc engine kit is ready soar- are you? HIGH PERFORMANCE: Unlike most standard bicycle engine kits, the BBR Tuning 66/80cc comes standard with high quality components designed to last. This engine puts out 5-6 HP (horse power) and has a top speed of 25-35MPH (miles per hour) stock. EASY INSTALLATION: This kit makes installation a breeze, it includes the universal mount necessary to install on most 26" wheel bikes (Mountain, Cruiser, Chopper, Road) with V styled frames. The frame should have 9-11" of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be 25-29mm (around an 1"). The rider only needs some basic hardware skills, tools, and around 2-3 hours for installation and fine tuning adjustments FUEL EFFECIENT: The BBR Tuning Black Angle Fire 2-Stroke Engine Kit is extremely affordable and fuel efficient. Providing 100  150 miles per gallon. INDUSTRY LEADING 6 MONTH WARRANTY: Backed by an industry leading 6 month manufacture warranty and lifetime support the BBR Tuning 66/80cc Engine Kit comes with the industries best support and a satisfaction guarantee