2017 Kawasaki KX450F

First Impressions: 2017 Kawasaki KX450F
Vital Review

First Impressions: 2017 Kawasaki KX450F - More Motocross Videos

For 2017, Kawasaki has gone the route of refining their new KX450F they released in 2016. These refinements mostly focus around the chassis/suspension, in an attempt to bring about a better handling package for their newest green machine. These improvements include new triple clamps, not with a different offset but different flex characteristics to improve the front-end grip. Beyond that, they've also included a new link arm and bell crank to improve the linkage ratio for the shock, along with updating the swingarm with more clearance for the shock. To add to these chassis updates, the front forks and rear shock have received internal changes to better take advantage of the changes on each end of the new KX450F.

Some smaller bits and pieces have also received upgrades. These things include new radiator shrouds, which include molded-in graphics, and updated ECU settings to try and clean up the initial response of the engine. Then on the reliability side, Kawasaki has updated the seat base to take on a bit more abuse. After releasing an all-new KX450F in 2016 (including an all new chassis, swingarm, and engine), it's no surprise to see Kawasaki take things a bit easy for 2017, and just try to build upon the massive upgrades they've put forward.


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Kawasaki KX450F
Model Year
Engine Size
Engine Type
Engine Displacement
Bore x Stroke
96.0 x 62.1mm
Compression Ratio
Fuel System
DFI® w/43mm Keihin throttle body
Digital DC-CDI
5-speed, return shift Final Drive: Chain
Final Drive
Suspension Front
Inverted Showa SFF-Air TAC fork with Triple Air Chamber, DLC coated sliders, 22-position compression and 20-position rebound damping adjustment/12.0 in
Suspension Rear
Uni-Trak® linkage system and Showa shock, 19-position low-speed and 4-turns high-speed compression damping, 22-position rebound damping and fully adjustable spring preload/12.0 in
Brakes Front
80/100-21 Bridgestone M403
Brakes Rear
120/80-19 Bridgestone M404
Tires Front
Single semi-floating 270mm Braking petall disc with dual-piston caliper
Tires Rear
Single 240mm Braking petal disc with single-piston caliper
Overall Length
86.4 in
Overall Width
32.3 in
Overall Height
50.4 in
Seat Height
37.4 in
58.9 in
Ground Clearance
13.2 in
28.2°/5.0 in
Fuel Capacity
1.66 gal
Curb Weight
239.8 lbs with fuel
More Info
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