The JL .21 PRO is a high quality engine that doesn't make you drop big dollars. This Pro engine has top quality manufacturing. It's powerful straight out of the box giving you the best bang for your buck. The JL .21 PRO is the answer for club racing and big event racing. It can perform with the best engines in the industry with top notch speed and crisp acceleration. With a coated crankshaft and precision tooling for smoother fuel distribution passing through the engine, you would think the engine has been modified. But that's all been done by the manufacturer to give you what you need for competitive racing. The 7 port ABC piston and sleeve have been machined with the utmost care and offer the best power for the engine on both ends of the spectrum. It also features a turbo button head for top end speed. The JL .21 Pro has the full race look and durability factor, the hardcoated crankcase and smooth black colored, conical shaped cooling head and the JL etched insignia means business. A composite finned, three needle carburetor body gives you what you need in tuning the engine easily and quickly. Clearing jumps is not a problem whether it’s transition from a hairpin turn to a quick double or for those super cross 20 foot jumps the JL .21 PRO can keep up with the best of them at a fraction of the cost of other pricey engines. You will be completely surprised by what this engine can do for your race program.