
Honda launched the SporTrax to improve the competencies of sport quads and bring back the element of fun in exploring unbeaten paths and off-road. Boasting an XR400R-inspired engine, independent double-wishbone front suspension, and a 65-mph top speed, it continues to be the community’s favorite entry-level quad. The 2002 Honda 400EX is part of the SporTrax lineup, signaling the rebirth of sport riding and 4-strokes taking over four-wheelers. Unadulterated, powerful, and robust, this four-wheeler laid the foundation for pure-sport quads and introduced 4-strokes into the ATV landscape – with a Baja 1000 championship to boot. After all, the quad hails from one of Honda’s longest mainstays in the sport-ATV segment. TRX400EX or SporTrax) successfully earned a reputation for reliability and fun. Just four years after its inception, the 2002 Honda 400EX (a.k.a. 400ex parts can be found on most auction and classified sites used from ATV parts resellers, or new from Honda Motors co.Disclosure: We may get commissions for purchases made through links in this post.
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It may become harder to find high performance TRX 400ex parts but the TRX 400EX was a runaway hit and many were produced. Honda released their all new TRX 450R ATV model and stopped production of the EX 400 in 2009. It’s a fun, reliable and sturdy little ATV. The extremely popular and fast Honda 400 EX ATV remained a top enthusiast choice for many years and is finding it’s stride in the collectible market.

Carb : 38 mm piston-valve with accelerator pump.Engine : RFVC, dry-sump, 1-cylinder, 4-stroke.
