Of course, the muffler is larger and contains a catalytic converter. Plastic cover and skid plates do double duty as protective parts while damping noise from the engine. Rubber-damped sprockets and a sealed chain work with IRC tires and a urethane-injected swingarm to quiet road noise. On top of all that, add emissions equipment such as an air-injection system, charcoal canister, and ratcheting fuel cap. With a final dose of street-focused LED lighting, turn signals, mirrors, license plate bracket, and reflectors along with a longer subframe reaching to the rear of the fender for support of enduro-travel bags, you now can see it’s a marvel Honda kept the CRF450L under 300 pounds.