2021 KXF 450

2021 KXF 450

Product #:kxf450-21

With more Supercross and Motocross championships than any other manufacturer, the KX™ name is synonymous with winning. The KX™450 motorcycle represents the flagship of the KX lineup, built with the sole purpose of dominating the track. Over the past four decades, we've learned what it takes to win and stay on top. Our dedication to building the ultimate machine is undeniable, and the KX™450 represents this to the fullest.






Call for price & availability +35314526170


Engine 4-stroke single, DOHC, liquid-cooled

Displacement 449cc Bore x Stroke 96.0 x 62.1mm

Compression Ratio 12.5:1

Fuel System DFI® with 44mm Keihin throttle body

Ignition Digital CDI with 3 Coupler Options

Transmission 5-speed, return shift, with wet multi-disc manual clutch and hydraulic clutch actuation

Final Drive, Chain


Front Suspension / Wheel Travel 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping/12.0 in

Rear Suspension / Wheel Travel Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping, 22-way rebound damping and adjustable preload/12.1 in

Front Tire 80/100-21

Rear Tire 120/80-19

Front Brakes Single semi-floating 270mm Braking® petal disc with dual-piston caliper

Rear Brakes Single 250mm Braking® petal disc with single-piston caliper


Frame Type Aluminum perimeter

Rake/Trail 27.6/4.8 in

Overall Length 86.0 in

Overall Width 32.3 in

Overall Height 49.8 in

Ground Clearance 13.4 in

Seat Height 37.6 in

Curb Weight 232.7 lb without fuel / 242.9 lb**

Fuel Capacity 1.64 gal

Wheelbase 58.5 in

Color Choices Lime Green


Data sheet

Engine Size
Product Type
Bike Year
30+ years industry experience We opened our doors back in 1982 and have been working non-stop since then to bring out customers the best products. We’ve seen our fair share of products come and go over the years and we’re confident we’ve learnt what works best in all conditions. We can’t wait to see what the next 30 years bring, not only to CCM but the whole off-road motorcycle industry.
Fantastic after sales, support & advice At CCM Racing we believe in fantastic after sales. You can trust us to sell you a bike and look after you if any issues arise. Servicing or warranty issues will be arranged in a professional manner and we’ll support you throughout the entire process advising you on the best options available.
Fully equipped workshop We have you covered when it comes to any form of spanner work. Our workshop can cater for any eventuality, from jobs such as brake bleeds to fork and shock servicing, engine work, repairs and fault finding. We stock a huge range of parts for all major brands and models meaning we can get you back out on track nice and quick.
Continued discounts to loyal customers We reward loyalty. Keep on coming and the saving will come your way. Tell your mates and again, we’ll reward you.
Always the best prices, guaranteed! Seen it cheaper? We’ll always try our best to match or beat any price you’ve seen elsewhere. Give us a call or come visit us in-store and we’ll see what we can do for you.
Give us a shout or pop in for a coffee! Got a question? call us on + 353 1 4526170. Or want to pop in to see us? our store address is 61 Broomhill Drive, Airton Road, Dublin 24, Ireland. Kettle is at the top of the stairs, flick it on as you pass. We have plenty of riding gear to be looking through as your waiting. We look forward to meeting you.