Introduced in 1982 the EC variant is a much improved motorcycle compared to the original 500. Sharing many parts with the CX500 Turbo introduced the same model year, the Sport (following the release of the CX650ED 'Eurosports', many people referred to the CX500EC also as the 'Eurosports' although technically not correct) features air pre-load assisted front forks with an anti-dive mechanism, known as TRAC (Torque Reactive Anti-dive Control), and an air pre-load assisted prolink mono-shock rear suspension. The wheels were also modified, with an restyled round hole comstar with a 100–90H18 front tyre, whilst on the rear is a 120–80H18. The brakes are vastly improved with much more effective twin pot calipers on the front and a new disc brake with twin pot caliper on the rear replacing the original drum. The Sports is also significantly restyled with a larger fuel tank, a nose fairing, side panels, seat, and tail unit that share much more modern lines. In the UK only two colour options were made: white pearl with blue and red strips, or black with orange and silver stripes. The instrumentation is improved with the introduction of a fuel gauge and like the rest of the bike, a much updated appearance. Plastic mudguards replace the chromed steel versions on the earlier machines curing the associated rust problems. The round headlight of the early bikes is also replaced with a rectangular lens which gives improved night lighting.