Kawasaki Kx 250
カワサキKX250は、モトクロス専用レーシングマシンとして1974年に発売され、数十年にわたる競争的開発を経て進化し、世界で最も尊敬される250ccモトクロスバイクの1つになりました。その歴史を支配していた2ストロークエンジンから2020年には4ストロークの燃料噴射エンジンへと移行するなど、長年にわたって大きな変革を遂げてきました。現代の排出ガスと性能の基準に合わせて、2020年には4ストロークの燃料噴射エンジンに移行しました。KX250はモトクロスサーキットの定番であり、そのアグレッシブなパワー供給とレース仕様のシャシーで知られ、アマチュアライダーにもプロライダーにも愛されています。
Approximately 40–42 hp
パワー
Approximately 28–30 Nm
トルク
110 kg
ウェイト
Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed)
トップスピード
Estimated 6–8 L/100km (note: varies greatly depending on riding intensity; off-road/motocross use makes precise figures difficult to standardize)
燃料
裸
ボディ
購入者が知っておくべきこと
Top End Wear Alert
The KX250 two-stroke requires piston and ring replacement every 30-40 hours of hard riding. Always ask the seller for maintenance records and inspect the top end before buying.
Strong Resale Value
The KX250 holds its value exceptionally well in the used dirt bike market due to its proven race pedigree and loyal fan base. A well-maintained example can retain 70-80% of its value over several years.
Aggressive Power Delivery
The KX250 is known for its snappy, aggressive powerband that favors experienced riders over beginners. This raw performance is a major selling point for racers but can be a handful on tight trails.
中古購入者レビュー
"Buy it right and you'll grin every single lap."
$2,500-$5,500 usedThe KX250 is a serious race bike wearing trail clothes, and that's exactly what makes buying one used complicated. Kawasaki's two-stroke delivers savage, peaky power that'll punish anyone who isn't fully committed — this thing hits hard mid-range and doesn't apologize for it. Engine condition is everything here. Pull the pipe and inspect the power valve before handing over cash. If the previous owner raced it hard and skipped rebuilds, you're buying someone else's expensive problem. That said, a well-maintained example is genuinely special. The chassis is razor-sharp, the suspension components are quality stuff that takes tuning well, and parts availability remains solid. Check the swingarm bearings, linkage bearings, and reed cage — these are the spots where deferred maintenance hides. A compression test is non-negotiable. Low numbers mean a top-end job minimum, and potentially worse.
Recommended Gear & Accessories
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki Kx 250
Compare Kawasaki Kx 250 Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Kawasaki Kx 250 vs Ktm Sx-f 350
Specs · Power · Buyer verdict
Kawasaki Kx 250 vs Ktm Sx 250
Specs · Power · Buyer verdict
Kawasaki Kx 250 vs Yamaha Yz250f
Specs · Power · Buyer verdict
Kawasaki Kx 250 vs Suzuki Rm-z250
Specs · Power · Buyer verdict
Kawasaki Kx 250 vs Gas Gas Ex 350f
Specs · Power · Buyer verdict