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.
가와사키 KX450 (원래 KX450F) 은 2006년에 4행정 모터크로스 경쟁 모델로 출시되어 가와사키 라인업의 노후화된 KX500 2스트로크를 대체했습니다.이 모델은 2019년에 전기 시동 장치, 새 프레임, 수정된 엔진 내부 등을 특징으로 하는 대대적인 재설계를 거쳐 공장 사양의 최고급 모터크로스 장비로서의 명성을 확고히 했습니다.KX450 모델은 AMA 슈퍼크로스 및 모토크로스 챔피언십에 여러 번 참가하여 현존하는 가장 경쟁력 있는 양산 모터크로스 자전거 중 하나로 손꼽힙니다.
~55 hp
파워
~52 Nm
토크
110 kg
무게
~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified)
탑 스피드
Estimated 6–9 L/100km (note: highly variable depending on riding intensity; off-road/motocross use is not standardized for fuel economy testing)
연료
벌거벗은
바디
Video Review
구매자가 알아야 할 사항
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.
연도별 세대 및 사양
알루미늄 프레임, 449cc 수랭식 4스트로크, 연료 분사 이전 카버렛 셋업을 갖춘 KX450F 출시
"4스트로크 모터크로스를 다시 만든 알루미늄 프레임 무기입니다."
Kawasaki가 2006년에 KX450F 모델을 출시했을 때, 알루미늄 테두리 프레임을 보고 바로 이게 워밍오버 덤퍼가 아니라 완전히 새로운 생각이었다는 것을 알 수 있었습니다.449cc DOHC 모터는 중거리에서 강한 힘을 내며 7,000rpm이 넘으면 절대 폭발합니다. 딱딱하고 틀에 박힌 트랙에서 암 펌핑을 한 후 끝부분을 바꾸려고 할 때까지는 훌륭한 사운드로 들립니다.서스펜션, 특히 Kayaba SSS 포크는 제가 연달아 탔던 Honda CRF450R 보다 네모난 모서리의 히트를 더 잘 흡수하여 당대 최고의 성능을 발휘했습니다.솔직히 단점이라면 초기 유닛의 탄수화물이 공장에서 희박하게 분사되어 바닥에 지저분한 부분이 생겼고, 1세대 스로틀 반응으로 인해 순조롭지 않으면 코너 중간에 빠져나올 수 있을 정도로 갑작스럽게 느껴질 수 있다는 것입니다.
장점
단점
개선된 프레임 지오메트리, 새로운 서스펜션 설정, 개선된 동력 전달을 위한 실린더 헤드 및 배기 장치 업데이트
새로운 알루미늄 프레임, 개선된 엔진 내부, 전기 스타터 추가, 향상된 인체 공학 및 업데이트된 연료 분사.
프레임 수정, 서스펜션 업데이트, 새 차체, 엔진 매핑 수정, 런치 컨트롤 도입.
핑거 팔로워 밸브 트레인, 새 프레임, 유압 클러치, 업데이트된 연료 분사, 상당한 무게 감소.
새로운 섀시, 업데이트된 서스펜션 링키지, 수정된 차체, 트랙션 컨트롤, 개선된 엔진 성능 및 전자 장치.
중고 구매자 리뷰
"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.
일반적인 문제
🔥 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
✅사전 구매 체크리스트
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
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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.
