Honda’s TRX300X was a short-run sport ATV nameplate introduced for the 2007 model year. It represented the final stage of Honda’s long-running 300-class two-wheel-drive sport quad lineage, carrying forward the familiar compact, rider-focused formula that had made Honda’s 300cc sport machines a staple for trail riders and recreational ATV enthusiasts. Honda’s own service literature groups the 2007–2009 machines under the TRX300X/EX designation, and California emissions certification documents show the TRX300X as a 2009 model, confirming that the nameplate remained in use through that model year.
The TRX300X sat in Honda’s sport ATV range as a straightforward, conventional machine rather than an all-new redesign. Its significance is historical: it bridged the older 300EX-era identity into the late 2000s, keeping the model relevant in a segment that was gradually moving toward newer chassis and larger-displacement sport quads. For enthusiasts, it is best understood as the closing chapter of Honda’s classic 300cc sport ATV formula, valued for its approachable character, durable reputation, and simple mechanical layout.
Production ended after the 2009 model year, and Honda later moved the 300-class sport ATV role to other nameplates rather than continuing the TRX300X badge. As a result, the TRX300X remains a distinct, finite-era Honda sport quad with a clearly bounded production run.