Specs
- New or used
- Used
- Availability
- In stock
- Colour
- Red
- Displacement
- 449 ccManufacturer spec
- Cylinders
- 1Manufacturer specDealer: Unicam four-valve - Single-cylinder four-stroke
- Engine cycle
- Four-strokeManufacturer spec
- Cooling
- Liquid-cooledManufacturer spec
- Transmission
- ManualManufacturer specDealer: Close-ratio five-speed
- Final drive
- ChainManufacturer spec
- Seat height
- 37.8 inManufacturer spec
- Wheelbase
- 58.1 inManufacturer spec
- Ground clearance
- 12.9 inManufacturer spec
- Wet weight
- 257 lbManufacturer spec
- Fuel capacity
- 2.2 galManufacturer spec
- Model code
- CRF450RXJ
- VIN
- JH2PE07C1JK100394
- Stock #
- U5507
All details from the dealer (10)
- Model Type
- Competition
Brakes/Wheels/Tires
- Brakes
- Front - Single 260 mm disc with twin-piston caliper Rear - Single 240 mm discManufacturer spec
- Tires
- Front - Dunlop Geomax AT81 90/90-21 Rear - Dunlop Geomax AT81 120/90-18Manufacturer spec
Engine
- Bore x Stroke
- 96 x 62.1 mmManufacturer spec
- Compression Ratio
- 13.5:1Manufacturer spec
- Fuel System
- Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle bodyManufacturer spec
- Ignition
- Full transistorized with electronic advanceManufacturer spec
Operational
- Suspension
- Front - 49 mm inverted Showa fork with rebound and compression damping adjustability; 12.0 in. of travel Rear - Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability; 12.28 in. of travelManufacturer spec
- Rake
- 27° 22' (Caster Angle)Manufacturer spec
- Trail
- 4.6 in. (116 mm)Manufacturer spec
From the dealer's page
When the Honda CRF450RX hit the scene last year, it blew everyone away. This was more than just a premier-class motocrosser with an electric starter. It’s a serious off-road weapon fully optimized for trophy-class competition in enduros, hare scrambles, and GNCC racing. This year we’ve upgraded the battery to a lithium-ion unit for lighter weight and better performance, and removed the kickstarter to also save weight. If you’re serious about winning and want the biggest advantage you can find, the 2018 Honda CRF450RX delivers.
Price history
Tracked since Oct 12, 2026 · last checked 3h ago
Price details as printed by the dealer
- Price$4,999
- Documentation Fee+ $250
Throttle does not add these up.
- Motorsports International (this listing)
Prices as listed by dealers; auction results labelled; a dashed gap = no listed price.
Timeline
First seen
Oct 12, 2026
Market context
Comp set: 2016–2020 Honda CRF450RX · 2 listings
Fewer than three comparable units are indexed, so there is no honest median to compare against yet. We would rather show nothing than a number we cannot stand behind.