Kawasaki Kx 450
The Kawasaki Kx 450 has a top speed of ~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified), produces ~55 hp and weighs 110 kg. Motoryk rates it 8.5/10.
Kawasaki KX450 (orijinal olarak KX450F) 2006 yılında dört zamanlı bir motokros rakibi olarak tanıtıldı ve Kawasaki'nin serisindeki eski KX500 iki zamanlı modelinin yerini aldı. 2019'da elektrikli çalıştırma, yeni bir şasi ve revize edilmiş motor iç kısımları içeren büyük bir yeniden tasarıma tabi tutuldu ve fabrika özelliklerine sahip birinci sınıf bir motokros makinesi olarak ününü sağlamlaştırdı. KX450, birçok AMA Supercross ve Motocross şampiyonasına katıldı ve bu da onu mevcut en rekabetçi üretim motokros bisikletlerinden biri haline getirdi.
~55 hp
Güç
~52 Nm
Tork
110 kg
Ağırlığı
~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified)
En yüksek hız
Estimated 6–9 L/100km (note: highly variable depending on riding intensity; off-road/motocross use is not standardized for fuel economy testing)
Yakıt
çıplak
Vücut
Video Review
Alıcıların Bilmesi Gerekenler
Launch Control System
The KX450 features a built-in launch control mode that limits power delivery for optimal holeshots — a feature typically found only on higher-end or heavily modified bikes.
Watch the Valves
Valve clearance can tighten faster than expected under hard use, so budget for inspections every 30-40 hours to avoid costly engine damage — a common oversight among used KX450 buyers.
Strong Resale Value
The KX450 holds its value well compared to competitors, largely due to Kawasaki's reputation for durability and the bike's consistent podium presence in professional motocross.
Yıllara Göre Nesiller ve Özellikler
Alüminyum çerçeveli, 449cc sıvı soğutmalı dört zamanlı, yakıt enjeksiyonlu önceki karbüratörlü kurulum ile KX450F tanıtıldı.
"Dört zamanlı motokrosu yeniden yazan ham, alüminyum çerçeveli silah."
Kawasaki 2006'da KX450F'yi düşürdüğünde, o alüminyum çevre çerçevesi size hemen bunun ısınmış bir şey olmadığını - gerçek bir yeniden düşünme olduğunu söyledi. 449cc DOHC motor orta mesafeden sert bir şekilde çeker ve kesinlikle 7.000 rpm'den fazla patlar; bu, dar, yivli bir pistte kol pompalanana ve üzerinizdeki uçları değiştirmeye çalışana kadar kulağa harika geliyor. Süspansiyon - özellikle Kayaba SSS çatalı - dönemin gerçekten sınıfında liderdi ve arka arkaya sürdüğüm Honda CRF450R'den daha iyi kare kenarlı vuruşları emdi. Dürüst bir dezavantajı: İlk ünitelerdeki karbonhidrat fabrikadan püskürtüldü, bu da alt kısımda kötü bir noktaya neden oldu ve birinci nesil gaz kelebeği tepkisi, pürüzsüz olmazsanız sizi virajın ortasında yakalayacak kadar ani olabilir.
Artıları
Eksileri
Geliştirilmiş güç dağıtımı için revize edilmiş çerçeve geometrisi, yeni süspansiyon ayarları, güncellenmiş silindir kafası ve egzoz.
Yeni alüminyum çerçeve, revize edilmiş motor içi, elektrikli marş motoru eklendi, geliştirilmiş ergonomi ve güncellenmiş yakıt enjeksiyonu.
Revize edilmiş çerçeve, güncellenmiş süspansiyon, yeni gövde, revize edilmiş motor haritalaması, fırlatma kontrolü tanıtıldı.
Parmak takipçisi valf grubu, yeni çerçeve, hidrolik kavrama, güncellenmiş yakıt enjeksiyonu, önemli ağırlık azaltma.
Yeni şasi, güncellenmiş süspansiyon bağlantısı, revize edilmiş gövde, çekiş kontrolü, geliştirilmiş motor performansı ve elektronik.
Kullanılmış Alıcı İncelemesi
"A brilliant 450 that rewards experienced riders who buy smart."
$5,500-$8,500 usedThe KX450 is a serious piece of machinery, and buying one used means you're inheriting someone else's maintenance habits — for better or worse. These engines are built tough, but they're also built to be flogged hard, so the first thing you're checking is service history. Valve clearances, hour meters, whether the air filter's been swapped regularly. A neglected KX450 will bite you financially before it bites you on the track. Get a good one, though, and you've got one of the sharpest-handling 450s on the market. The power delivery is explosive but manageable once you're comfortable with it — not the friendliest bike for intermediate riders stepping up in class. The suspension is legitimately excellent stock, which saves you money compared to competitors that need immediate respringing. Kawasaki's launch control and traction management systems on newer models are genuinely useful, not just marketing fluff. Price is fair in the used market right now. Just budget for consumables — chains, sprockets, and brake pads disappear fast on a bike that gets ridden the way this one deserves.
Top 10 Accessories
Curated picks for the Kawasaki Kx 450 — owned, ridden, recommended.
Yaygın Sorunlar
🔥 1 CRITICALCompression test, inspect for smoke or rattling noise
Cold start behavior, ask when valves last checked
Grab rear wheel, check for play and clunking
✅Satın Alma Öncesi Kontrol Listesi
Reliable if maintained, high risk when neglected
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki Kx 450
Ktm Sx 450
Ktm Sx-f 450
Suzuki Rm-z 450
Yamaha Yz450f
Suzuki Rmz450
Compare Kawasaki Kx 450 Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Kawasaki Kx 450 vs Ktm Sx 450
Specs · Power · Buyer verdict
Kawasaki Kx 450 vs Ktm Sx-f 450
Specs · Power · Buyer verdict
Kawasaki Kx 450 vs Suzuki Rm-z 450
Specs · Power · Buyer verdict
Kawasaki Kx 450 vs Yamaha Yz450f
Specs · Power · Buyer verdict
Kawasaki Kx 450 vs Suzuki Rmz450
Specs · Power · Buyer verdict
More Kawasaki Kx 450 Guides
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Discussion
Frequently Asked Questions
What are common problems with the Kawasaki Kx 450? +
Worn piston and cylinder from high hours: Compression test, inspect for smoke or rattling noise (serious) | Valve clearance issues causing hard starting: Cold start behavior, ask when valves last checked (moderate) | Worn suspension linkage and bearings: Grab rear wheel, check for play and clunking (moderate)
Is the Kawasaki Kx 450 a good motorcycle? +
A brilliant 450 that rewards experienced riders who buy smart. Rating: 8.5/10. Best for: Experienced motocross riders ready for serious competition. Avoid if: Intermediate riders still building fundamental skills.
What is the horsepower of the Kawasaki Kx 450? +
The Kawasaki Kx 450 produces ~55 hp @ 9,000 rpm (estimated; Kawasaki does not officially publish power figures — note: dyno results typically range 53–58 hp), with ~52 Nm @ 7,500 rpm (estimated; official figures not published — note: best estimate based on dyno data) of torque. Top speed: ~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified).
Is the Kawasaki Kx 450 good for beginners? +
Not really — the Kawasaki Kx 450 is better for experienced riders. Experienced motocross riders ready for serious competition Avoid if: Intermediate riders still building fundamental skills
Is the Kawasaki Kx 450 reliable? +
Owners report 1 critical issue to watch for on the Kawasaki Kx 450, notably: Worn piston and cylinder from high hours (Compression test, inspect for smoke or rattling noise). Buy with a pre-purchase inspection.
Is the Kawasaki Kx 450 good for daily use? +
Experienced motocross riders ready for serious competition Fuel: Estimated 6–9 L/100km (note: highly variable depending on riding intensity; off-road/motocross use is not standardized for fuel economy testing).
How fast is the Kawasaki Kx 450? +
The Kawasaki Kx 450 reaches a top speed of ~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified), producing 55 hp at 110 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Kawasaki Kx 450? +
Motoryk has curated a Top 10 gear list specifically for the Kawasaki Kx 450, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/kawasaki/kx-450/top10. Each pick is matched to this bike's spec.
