High Performance 66/80cc stage 4 racing engine (Black) 2 Stroke

  
With this performance package, you'll get everything you need to get tons of power, from top-end speed to bottom-end torque. Outfitted with an Expansion Chamber for a smooth ride, and NGK spark plug and a high-performance head for major compression, and a high-performance carburetor for optimum speed, you've got a motor that's ready to perform and more importantly, a motor that'll last. 66/80cc stage 4 racing engine from BikeBerry. Silver BBR Tuning 66/80cc 2-Stroke Engine. Bonus - BBR Tuning Billet Aluminum High-Performance Cylinder Head 66/80cc.

Expansion Chamber, Expansion Chamber with Muffler, or High Performance Expansion Chamber. Complete Clutch Cable Assembly with Clutch Wire Clip. Top Quality Japanese 202 Main Bearings.

415 Bike Engine Drive Chain. Upgraded Twist Throttle and Cable With Grip. Updated 1.5L Black Teardrop Gas Tank approx. 44 Tooth Chrome Drive Sprocket with 9 Holes. Large Spring (Heat Shield Spring). High-Quality Japanese Bearings on Both Ends of Crank. Spark Plug Removal Tool (While Supplies Last)! The BBR Tuning 66/80cc bike engine kit is about 8.5" height 7" length 5 width.

The bike engine kit fits on standard, male frames with tubing of 25mm to 29mm in diameter. Larger frame sizes require drilling into the bike frame with a stationary bolt and use the universal face plate to mount the front of the engine. 25 to 40 mph depending on the gear ratio and weight. Fuel Economy: 100-125 miles per gallon. With an Expansion Chamber on this motor you can count on a smooth ride.

Ever wonder why it feels so rough when you ride? That's partially because the stock muffler restricts airflow coming out of your engine, and if you're using performance parts you'll need something that won't limit your motor from expelling all that exhaust it creates. With no baffle in the chamber, there's nothing limiting airflow except at the exhaust port. However, the banana shape of this muffler helps circulate air around the chamber so that instead of a large amount of smoke trying to go through a small hole, there's a smooth flow of air coming from the chamber itself. Not only will you get a little bit of torque of this muffler, but you'll also get a smoother ride, too.