Yamaha Yz 450 F
The Yamaha Yz 450 F has a top speed of ~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain), produces ~62 hp and weighs 110 kg. Motoryk rates it 8.5/10.
Yamaha YZ450F diperkenalkan pada tahun 2003 sebagai evolusi dari YZ426F, menampilkan mesin motocross empat langkah 450cc yang lebih ringkas dan halus. Selama bertahun-tahun telah mengalami desain ulang yang signifikan, terutama pada tahun 2010 dengan tata letak mesin silinder terbalik dan pada tahun 2018 dengan kontrol start dan peluncuran listrik, memperkuat reputasinya sebagai salah satu motor motocross pabrik paling canggih. Ini telah dinaiki ke beberapa kejuaraan AMA Supercross dan Motocross, menjadikannya tolok ukur di kelas motocross 450cc.
~62 hp
Kekuasaan
~52 Nm
Torsi
110 kg
Berat
~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain)
Kecepatan Tertinggi
Estimate: ~6-8 L/100km under typical motocross/off-road riding conditions (note: highly variable depending on riding intensity; not designed for road use)
Bahan Bakar
Telanjang
Tubuh
Video Review
Apa yang Harus Diketahui Pembeli
Reverse Cylinder Engine
The YZ450F features a unique reverse-inclined engine layout that centralizes mass for sharper handling. This design is rare in motocross and gives it a distinct performance edge over competitors.
Watch the Valves
Valve clearance checks are critical on the YZ450F and should be inspected every 15-20 hours of riding. Neglected valve maintenance is the most common cause of costly engine damage on used examples.
Strong Resale Value
The YZ450F consistently holds its value better than most motocross bikes, largely due to Yamaha's reputation for reliability. A well-maintained example can retain 60-70% of its value after two years.
Generasi & Spesifikasi berdasarkan Tahun
Diperkenalkan sebagai penerus YZ426F; Mesin 449cc, rangka aluminium, pengiriman daya agresif.
"Mentah, menghukum, brilian — jika Anda bisa mengatasinya."
Yamaha menjatuhkan bom di kelas dengan benda ini — lebih ringan dari 426, lebih cepat, dan dengan pukulan yang akan mengatur ulang isian Anda jika Anda tidak memperhatikan. Bingkai aluminium mengubah penanganannya; itu benar-benar mengarahkan alih-alih membajak, dan pada hardpack itu benar-benar menginspirasi kepercayaan diri. Tapi pengiriman kekuatan itu adalah pedang bermata dua: jarak menengah ke atas meledak tanpa peringatan, dan jika Anda adalah pengendara kelas B atau masih membangun daging Anda, itu akan meludahkan Anda lebih cepat daripada yang bisa Anda kedip. Biaya perawatan juga nyata — katup perlu diperiksa setiap beberapa hari perjalanan, dan mengabaikan itu menjadi mahal dengan cepat.
Kelebihan
Kekurangan
Kepala silinder yang direvisi, knalpot baru, pengaturan suspensi yang diperbarui, respons dan penanganan throttle yang ditingkatkan.
"Gen yang akhirnya menjadikan YZ450F paket lengkap."
Yamaha menangani pengiriman tenaga tajam Gen 1 yang terkenal dengan kepala yang direvisi dan knalpot baru, dan perbedaannya nyata — motor ini menarik lebih bersih dari tikungan tanpa pukulan mengguncang yang biasa menukar bagian belakang di tengah belokan. Dengan berat 110 kg masih terasa tertanam melalui gundukan pengereman yang berombak, dan pengaturan suspensi yang diperbarui sesuai dengan rentang pengendara yang lebih luas daripada pengaturan yang kaku dan khusus balapan dari pendahulunya. Ketinggian kursi jujur — tinggi 985 mm, dan pengendara yang lebih pendek akan merasakannya di bagian kecepatan rendah. Satu-satunya keluhan asli saya adalah bahwa throttle masih memiliki nuansa kayu di sepertiga pertama, dan jika Anda tidak berada di puncak jetting untuk ketinggian Anda, ia dapat berjalan ramping dan panas di motor panjang.
Kelebihan
Kekurangan
Tata letak mesin miring ke depan baru, desain siap injeksi bahan bakar, sasis yang direvisi, bobot keseluruhan yang lebih ringan.
Injeksi bahan bakar diperkenalkan, mesin miring ke belakang, rangka baru, opsi start listrik ditambahkan kemudian.
Bingkai yang direvisi, suspensi KYB baru, injeksi bahan bakar yang diperbarui, peningkatan sentralisasi massa dan ergonomi.
Sepenuhnya didesain ulang; bingkai baru, mesin, bodi, kontrol peluncuran, konektor power tuner yang dipasang di setang.
Pengiriman daya yang direvisi, suspensi yang diperbarui, busa kursi baru, kontrol traksi, dan beberapa mode daya ditambahkan.
Bingkai baru, internal mesin yang direvisi, bodi yang diperbarui, konektivitas aplikasi power tuner yang ditingkatkan, dan elektronik.
Ulasan Pembeli Bekas
"An unforgiving elite machine that rewards experienced, mechanically-aware riders only."
$4,500-$7,500 usedThe YZ450F is a proper weapon, and buying one used means someone else already paid the depreciation hit. That said, this thing will find you out fast — it's not a beginner's machine or a casual trail bike. The power delivery is aggressive and front-heavy, demanding respect from the first throttle crack. Check the hours meter religiously and assume whoever owned it before you rode the hell out of it, because they probably did. Mechanically, Yamaha's engine is impressively bulletproof if the maintenance schedule was followed. That's your biggest gamble with used — has the piston been replaced around the 80-100 hour mark? Ask for receipts. Suspension linkages wear fast under aggressive riders, and revalving costs money. Post-2018 models with the reverse-cylinder layout are noticeably better balanced and worth hunting for specifically. The electric start on later models is genuinely useful and not a gimmick. Budget realistically. Whatever you pay for the bike, add another $500-800 for consumables, a fresh piston, and suspension refresh. Go in with eyes open and this bike will absolutely deliver.
Top 10 Accessories
Curated picks for the Yamaha Yz 450 F — owned, ridden, recommended.
Masalah Umum
🔥 2 CRITICALCold start difficulty, ticking noise, compression test
Inspect rear subframe welds and alignment visually
Oil streaks on fork legs, soft or clunky feel
Pull dipstick, dark sludgy oil, ask service history
✅Daftar Periksa Pra-Pembelian
Reliable if maintained, punishing if neglected
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Yamaha Yz 450 F
Ktm Sx 450
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Ktm Sx-f 450
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Yamaha Yz450f
Compare Yamaha Yz 450 F Side-by-Side
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Discussion
Frequently Asked Questions
What are common problems with the Yamaha Yz 450 F? +
Valve clearance wear from hard use: Cold start difficulty, ticking noise, compression test (serious) | Bent or cracked subframe from crashes: Inspect rear subframe welds and alignment visually (moderate) | Worn fork seals and suspension components: Oil streaks on fork legs, soft or clunky feel (moderate)
Is the Yamaha Yz 450 F a good motorcycle? +
An unforgiving elite machine that rewards experienced, mechanically-aware riders only. Rating: 8.5/10. Best for: Experienced motocross racers wanting proven performance value. Avoid if: You're new to high-displacement motocross bikes.
What is the horsepower of the Yamaha Yz 450 F? +
The Yamaha Yz 450 F produces ~62 hp @ 9,500 rpm (note: figure based on modern 2020+ models; earlier models ranged 55-60 hp), with ~52 Nm @ 7,500 rpm (note: estimated based on published dyno data for recent models) of torque. Top speed: ~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain).
Is the Yamaha Yz 450 F good for beginners? +
Not really — the Yamaha Yz 450 F is better for experienced riders (62950020205560 hp can be intimidating). Experienced motocross racers wanting proven performance value Avoid if: You're new to high-displacement motocross bikes
Is the Yamaha Yz 450 F reliable? +
Owners report 2 critical issues to watch for on the Yamaha Yz 450 F, notably: Valve clearance wear from hard use (Cold start difficulty, ticking noise, compression test). Buy with a pre-purchase inspection.
Is the Yamaha Yz 450 F good for daily use? +
Experienced motocross racers wanting proven performance value Fuel: Estimate: ~6-8 L/100km under typical motocross/off-road riding conditions (note: highly variable depending on riding intensity; not designed for road use).
