449cc (This is a common displacement for this model, specific year variations should be checked within the manual)
Bore X Stroke:
96.0 mm x 62.1 mm (Typical for this generation, confirm specific year in manual)
Performance
Horsepower Estimated:
Approx. 56 HP (at crankshaft, typical for this era's performance motocross bikes; specific dyno charts and figures will be in the manual)
Torque Estimated:
Approx. 40 lb-ft (at crankshaft, typical for this era's performance motocross bikes; specific figures will be in the manual)
Fuel System
Fuel Delivery:
Fuel Injection (Specific system details for each year will be in the manual)
Fuel Type:
Unleaded gasoline, minimum 91 octane (AKI) / 95 RON
Lubrication
Oil Type:
High-performance four-stroke motorcycle oil, JASO MA certified (Specific viscosity grades like 10W-40 will be detailed in the manual)
Oil Capacity:
Approx. 1.1 L (0.9 US qt) for engine only, higher with filter change; refer to manual for precise capacities.
🔧 Transmission
Standard
Type:
Close-ratio, constant-mesh, five-speed
Features
Clutch Type:
Multi-plate wet clutch
Gear Ratios:
Specific gear ratios for each of the five speeds will be detailed in the manual.
📐 Dimensions
Exterior
Length:
Approx. 85.9 inches (2182 mm) - typical for this generation, confirm specific year in manual.
Width:
Approx. 32.3 inches (820 mm) - typical for this generation, confirm specific year in manual.
Height:
Approx. 50.6 inches (1285 mm) - typical for this generation, confirm specific year in manual.
Weights
Dry Weight:
Approx. 220 lbs (100 kg) - typical for this generation, confirm specific year in manual.
Curb Weight:
Not typically published for motocross bikes, but will be included in chassis/weight distribution data within the manual.
🛡️ Safety Features
Ratings
Safety Standards:
Not applicable to competition off-road motorcycles in the same way as street vehicles; focus is on performance and rider control.
Active Features
Braking System:
Hydraulic disc brakes front and rear. Manual will detail caliper service, pad replacement, fluid type (DOT 4) and bleeding procedures.
Passive Features
Chassis Design:
Designed for high-performance off-road riding, emphasizing rider control and impact absorption.
💡 Technology Features
Infotainment
Infotainment System:
N/A (Competition motocross bike)
Driver Assistance
Driver Assistance:
N/A (Competition motocross bike)
Connectivity
Connectivity:
N/A (Competition motocross bike)
Engine Management
Efi System:
Electronic Fuel Injection system for precise fuel delivery and performance optimization. Manual covers sensor diagnostics and injector service.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 10-15 hours of ride time or monthly, whichever comes first (Refer to manual for precise intervals based on usage).
Air Filter Cleaning:
After every ride or as needed, especially in dusty conditions. Manual will detail cleaning and oiling procedure.
Spark Plug Inspection:
Every 20-30 hours of ride time. Manual will include gap specifications and replacement guidance.
Valve Clearance Check:
Every 20-30 hours of ride time. Critical for performance and engine longevity; manual provides detailed procedure and specifications.
Fluid Specifications
Coolant Type:
Honda High Performance Coolant or equivalent (50/50 mix of antifreeze and distilled water). Manual specifies exact type and capacity.
Brake Fluid:
DOT 4 hydraulic brake fluid.
Known Issues
Clutch Wear:
Can be prone to wear under heavy use; manual details inspection and replacement of plates and springs.
Engine Top End:
Piston and ring wear can occur with extended use; manual provides detailed inspection and replacement procedures for cylinder and piston.
Suspension Seals:
Fork and shock seals can leak; manual covers seal replacement and suspension service.
📚 Vehicle History
Brand Heritage
Heritage:
Honda has a long and successful history in motocross racing, with the CRF line representing their commitment to high-performance off-road competition.
Model Evolution
Evolution Crf450R:
The CRF450R underwent significant updates during this period, notably the transition to fuel injection and chassis refinements to improve handling and power delivery.
Production
Manufacturing Origin:
Japan (Typically for Honda's performance models).
🏆 Awards & Recognition
Recognitions
Motocross Awards:
The CRF450R has consistently been a top contender in professional motocross and supercross racing, often receiving accolades from industry publications for its performance and handling.
Ratings
User Reviews:
5-star rating based on 2 reviews, with comments highlighting it as the 'perfect manual' and a 'quick and easy download'.
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