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2017 Honda CRF450RX Overview
The 2017 Honda CRF450RX is an enduro / off-road motorcycle. Under the tank sits a Single cylinder, four-stroke engine running Single Overhead Cams (SOHC) valve actuation, a compression ratio of 13.5:1. The bore and stroke measures 96 x 62 mm. From a practical standpoint, the 2017 CRF450RX tips the scales at 118.4 kg, carries a 8.33-litre fuel tank, offers a seat height of 960 mm and spans a 1,476 mm wheelbase. That's roughly 80.4 kg lighter than the average enduro / off-road motorcycle in our database. Scroll down for the complete 2017 Honda CRF450RX spec sheet covering every technical detail from suspension travel to tyre sizes.
2017 CRF450RX - Pros & Cons
Strengths
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Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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📏
Tall seat height: The 960 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
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Modest fuel capacity: The 8.33-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Fuelling & injector care
Fuelling comes from fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Valve clearance checks
Single Overhead Cams (SOHC) valve actuation on the CRF450RX means clearances should be checked at the manufacturer's specified interval - they can tighten as mileage accumulates, and a light top-end tick is usually the first sign.
Brake disc and pad wear
The Single disc. Two-piston calipers. front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the CRF450RX runs 49mm inverted Showa fork with rebound and compression damping adjustability and Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Semi-double cradle, aluminium twin-spar - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Low-speed handling
At just 118.4 kg, the CRF450RX is light enough to manhandle easily at a standstill - one of the practical advantages of its class.
CRF450RX - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2017 Honda CRF450RX, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained CRF450RX should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any CRF450RX. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The CRF450RX's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used CRF450RX. A bike with clearances out of spec doesn't always feel obviously wrong - but tight clearances accelerate valve seat wear. Ask for service documentation proving it's been done.
2017 Honda CRF450RX - Frequently Asked Questions
What engine does the 2017 Honda CRF450RX have?
The 2017 Honda CRF450RX is powered by a Single cylinder, four-stroke engine.
How much does the 2017 Honda CRF450RX weigh?
The 2017 Honda CRF450RX weighs 118.4 kg. This is the manufacturer's wet figure.
What is the fuel tank capacity of the 2017 Honda CRF450RX?
The 2017 Honda CRF450RX has a 8.33-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 138-166 km between stops.
Is the 2017 Honda CRF450RX suitable for shorter riders?
The 2017 Honda CRF450RX has a seat height of 960 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2017 Honda CRF450RX have?
The 2017 Honda CRF450RX uses Single disc. Two-piston calipers. at the front and Single disc at the rear.
What tyre sizes does the 2017 Honda CRF450RX use?
The 2017 Honda CRF450RX runs 90/90-21 front and 120/90-18 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What fuel system does the 2017 Honda CRF450RX use?
The 2017 Honda CRF450RX uses Injection. Programmed Fuel Injection (PGM-FI), providing precise fuelling across the rev range and reliable cold-start behaviour.
Honda CRF450RX Spec Evolution
The Honda CRF450RX was produced across 7 model years (2017-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Wet Weight |
118.4 kg / 261.0 lbs |
116.6 kg / 257.0 lbs |
116.6 kg / 257.0 lbs |
115.7 kg / 255.0 lbs |
113.9 kg / 251.0 lbs |
113.9 kg / 251.0 lbs |
113.9 kg / 251.0 lbs |
| Engine Detail |
Titanium Intake Valves |
38mm intake valve, titanium; 31mm exhaust, steel |
38mm intake valve, titanium; 31mm exhaust, steel |
38mm intake valve, titanium; 31mm exhaust, steel |
38mm intake valve, titanium; 31mm exhaust, steel |
- |
- |
| Seat Height |
960 mm / 37.8 in. |
960 mm / 37.8 in. |
960 mm / 37.8 in. |
960 mm / 37.8 in. |
965 mm / 38.0 in. |
965 mm / 38.0 in. |
965 mm / 38.0 in. |
| Fuel Capacity |
8.33 litres / 2.20 gallons |
8.33 litres / 2.20 gallons |
8.52 litres / 2.25 US gallons |
8.52 litres / 2.25 US gallons |
7.95 litres / 2.10 US gallons |
8.00 litres / 2.11 US gallons |
8.00 litres / 2.11 US gallons |
| Ground Clearance (mm) |
328 mm |
328 mm |
328 mm |
328 mm |
335 mm |
336 mm |
336 mm |
| Ground Clearance (in.) |
12.9 inches |
12.9 inches |
12.9 inches |
12.9 inches |
13.2 inches |
13.2 inches |
13.2 inches |
| Comments |
Model ID: CRF450RX. |
Model ID: CRF450RX. |
Model ID: CRF450RX. |
Titanium fuel tank. Model ID: CRF450RX. |
Model ID: CRF450RX. |
3 ride modes. Model ID: CRF450RX. |
Model ID: CRF450RX. |
| Bore x Stroke (mm) |
96.0 x 62.0 mm |
96.0 x 62.0 mm |
96.0 x 62.0 mm |
96.0 x 62.0 mm |
96.0 x 62.0 mm |
96.0 x 62.1 mm |
96.0 x 62.1 mm |
Key Specifications
Engine
Single cylinder, four-stroke
Power
Not published by manufacturer
Torque
Not published by manufacturer
Top Speed
Not published by manufacturer
Weight
118.4 kg / 261.0 lbs
Fuel Capacity
8.33 litres / 2.20 gallons
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Full 2017 Honda CRF450RX Specifications
Comments
Model ID: CRF450RX.
Colours
Red
Ground Clearance (in.)
12.9 inches
Ground Clearance (mm)
328 mm
Seat Height
960 mm / 37.8 in.
Wheelbase
1,476 mm / 58.1 in.
Fuel Capacity
8.33 litres / 2.20 gallons
Wet Weight
118.4 kg / 261.0 lbs
Bore x Stroke (in,)
3.8 x 2.4 inches
Bore x Stroke (mm)
96.0 x 62.0 mm
Engine Type
Single cylinder, four-stroke
Fuel Control
Single Overhead Cams (SOHC)
Engine Detail
Titanium Intake Valves
Fuel System
Injection. Programmed Fuel Injection (PGM-FI)
Compression Ratio
13.5:1
Fuel Reserve
1.60 litres / 0.42 gallons
Ignition
Full transistorized with electronic advance
Starter
Electric & kick
Valve System
4
Final Drive
Chain
Gearbox
5-speed
Primary Drive
#520 T-ring-sealed chain; 13T/51T
Frame Type
Semi-double cradle, aluminium twin-spar
Suspension - Front
49mm inverted Showa fork with rebound and compression damping adjustability
Suspension - Rear
Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability
Rake
27.2°
Trail
116 mm / 4.6 in.
Wheel Travel - Front
305 mm / 12.0 in.
Wheel Travel - Rear
312 mm / 12.3 in.
Brakes - Front Diameter (in.)
10.2 inches
Brakes - Front Diameter (mm)
260 mm
Brakes - Rear Diameter (in.)
9.4 inches
Brakes - Rear Diameter (mm)
240 mm
Brakes - Front
Single disc. Two-piston calipers.
Brakes - Rear
Single disc
Rims
Dunlop Geomax tires
Tyres - Front
90/90-21
Tyres - Rear
120/90-18
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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