Honda Crf450rx
The Honda Crf450rx has a top speed of ~170 km/h (estimated; note: top speed is not the primary design focus of this off-road machine), produces ~56 hp and weighs 110 kg. Motoryk rates it 8.5/10.
ホンダCRF450RXは、モトクロスバイクのクローズドコースオフロード/エンデューロバリアントとして2017年に発売されました。純粋なMXレースとオフロード/クロスカントリー競技のギャップを埋めるように設計されました。18インチのリアホイール、より大きな燃料タンク、電動スタート、エンデューロやGNCCスタイルのレースに適したソフトなサスペンションチューニングなど、RXのMX兄弟車に比べて重要な機能強化が施されています。エンデューロクロス、GNCC、WORCSなどの競技用のファクトリーレベルのマシンを求める競争の激しいオフロードレーサーの間ですぐに人気を博しました。
~56 hp
パワー
~51 Nm
トルク
110 kg
ウェイト
~170 km/h (estimated; note: top speed is not the primary design focus of this off-road machine)
トップスピード
Approximately 8–10 L/100km (10–12.5 km/L) under hard off-road riding conditions
燃料
裸
ボディ
Video Review
購入者が知っておくべきこと
Strict Valve Service Intervals
The CRF450RX requires valve clearance checks every 24 hours of riding — skipping this is the #1 cause of expensive engine damage. Always ask a seller for documented valve service history before buying.
Strong Resale Value
Honda CRF450RX models hold their value exceptionally well, often retaining 70-80% of MSRP after one year. Low-hour, well-maintained examples are in high demand and sell quickly on the used market.
Trail-Ready from Factory
Unlike the race-focused CRF450R, the RX comes stock with an 18-inch rear wheel, larger fuel tank (2.1 gal), and a quieter exhaust — making it genuinely competition-legal and trail-practical without costly modifications.
年別の世代と仕様
CRF450RXの発売。449ccエンジン、18インチのリアホイール、CRF450Rよりも大きな燃料タンク。
新しいフレーム、改良されたサスペンション、フィンガーフォロワーエンジン、ローンチコントロール、更新された燃料噴射マッピング。
エアボックスの改訂、ECUマッピングの更新、ハンドルバーの位置の変更、シャーシの細かな改良。
まったく新しいシャーシ、最新のエンジン内装、新しいボディワーク、改良されたエルゴノミクスとサスペンション。
改良されたシリンダーヘッド、最新のエキゾースト、新しいボディワークスタイル、改良されたパワーデリバリーとハンドリング。
中古購入者レビュー
"Exceptional used buy if maintenance history checks out completely."
$7,500-$10,500 usedThe CRF450RX is genuinely one of the best off-road bikes Honda has built in years, but buying used requires some homework. These things get flogged hard by enthusiasts who actually know how to ride, so maintenance history matters enormously. The 450cc engine produces serious power that needs regular valve checks — skip that and you're looking at a top-end rebuild before you've even enjoyed a weekend ride. Always verify the air filter condition and ask about oil change intervals honestly. When maintained properly, the RX rewards you with class-leading suspension tuning straight from Honda's HRC-influenced setup, and that electric starter is genuinely life-changing on technical terrain. The 18-inch rear wheel makes it far more capable on longer trail rides than a pure motocrosser. Hours meter reading is your best friend here — anything over 80 hours without documented valve service, walk away or negotiate hard for the rebuild cost.
Top 10 Accessories
Curated picks for the Honda Crf450rx — owned, ridden, recommended.
よくある問題
🔥 1 CRITICALAsk for valve service history, inspect at purchase
Cold start rattle, check tensioner and chain slack
Inspect fins, look for coolant leaks or stains
Rock rear wheel, feel for play or binding
✅購入前チェックリスト
Reliable but high-maintenance, service history critical
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Honda Crf450rx
Ktm 500 Exc-f
Ktm 450 Exc-f
Gas Gas Ec 450f
Sherco Se 450i
Suzuki Rmx 450z
Compare Honda Crf450rx Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Honda Crf450rx vs Ktm 500 Exc-f
Specs · Power · Buyer verdict
Honda Crf450rx vs Ktm 450 Exc-f
Specs · Power · Buyer verdict
Honda Crf450rx vs Gas Gas Ec 450f
Specs · Power · Buyer verdict
Honda Crf450rx vs Sherco Se 450i
Specs · Power · Buyer verdict
Honda Crf450rx vs Suzuki Rmx 450z
Specs · Power · Buyer verdict
More Honda Crf450rx Guides
More from Honda
View all Honda models →Community Reviews
Discussion
Frequently Asked Questions
What are common problems with the Honda Crf450rx? +
Valves tighten quickly, needing frequent checks: Ask for valve service history, inspect at purchase (moderate) | Cam chain tensioner wear causes rattling: Cold start rattle, check tensioner and chain slack (moderate) | Radiator damage from crashes or rocks: Inspect fins, look for coolant leaks or stains (serious)
Is the Honda Crf450rx a good motorcycle? +
Exceptional used buy if maintenance history checks out completely. Rating: 8.5/10. Best for: Experienced trail riders wanting serious performance daily. Avoid if: Beginners or anyone ignoring documented service records.
What is the horsepower of the Honda Crf450rx? +
The Honda Crf450rx produces ~56 hp @ 9,000 rpm (estimated; Honda does not officially publish power figures), with ~51 Nm @ 6,500 rpm (estimated; Honda does not officially publish torque figures) of torque. Top speed: ~170 km/h (estimated; note: top speed is not the primary design focus of this off-road machine).
Is the Honda Crf450rx good for beginners? +
Not really — the Honda Crf450rx is better for experienced riders. Experienced trail riders wanting serious performance daily Avoid if: Beginners or anyone ignoring documented service records
Is the Honda Crf450rx reliable? +
Owners report 1 critical issue to watch for on the Honda Crf450rx, notably: Radiator damage from crashes or rocks (Inspect fins, look for coolant leaks or stains). Buy with a pre-purchase inspection.
Is the Honda Crf450rx good for daily use? +
Experienced trail riders wanting serious performance daily Fuel: Approximately 8–10 L/100km (10–12.5 km/L) under hard off-road riding conditions.
How fast is the Honda Crf450rx? +
The Honda Crf450rx reaches a top speed of ~170 km/h (estimated; note: top speed is not the primary design focus of this off-road machine), producing 56 hp at 110 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Honda Crf450rx? +
Motoryk has curated a Top 10 gear list specifically for the Honda Crf450rx, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/honda/crf450rx/top10. Each pick is matched to this bike's spec.
