The Kawasaki KLX300SM is a lightweight and nimble supermoto styled for street riding with a dirt‑bike heart. It’s a great entry option if you want fun without excess power or weight.
Kawasaki KLX300SM
When was it released?
The KLX300SM debuted in North America in 2021 as a 292 cc fuel‑injected supermoto derivative of the KLX300.
How long was it available in the market?
It has been continuously sold from its 2021 launch through at least the 2025 model year.
What is its fuel economy (approximate)?
Real‑world owners report about 61–74 mpg depending on year and riding style, typically around 65 mpg.
Suspension unbalanced for rider weight; may need tuning or spring changes.
Some early units had wiring/taillight placement flaws, e.g. melted taillight or electrical issues when wet.
Fuel tank actual usable capacity is around 1.6 gal despite 2.0 gal spec, limiting range.
Is it still a good option to buy today?
Yes — for riders who want a fun, lightweight street‑legal bike with off‑road DNA, the KLX300SM remains a solid choice in 2025, especially if you’re comfortable maintaining valve clearances and possibly upgrading suspension or tank.
Pros and Cons
✅ Pros
Lightweight and very agile on city streets or twisty roads
Low‑end torque with smooth EFI engine
Excellent fuel economy (~65 mpg) and low ownership cost
❌ Cons
Frequent valve shim service intervals (~7,600 mi)
Stock suspension may feel unbalanced without tuning
Limited fuel range due to smaller usable tank capacity
Kawasaki KLX300SM Gear Ratio
I 3.000
II 2.000
III 1.500
IV 1.250
V 1.050
VI 0.952
Kawasaki KLX300SM Idle speed
around 1,450–1,550 rpm per Kawasaki daily/annual checklist.
Kawasaki KLX300SM Throttle free play
2–3 mm
Kawasaki KLX300SM Clutch lever free play
2–3 mm
Kawasaki KLX300SM Chain slack
30–40 mm
Kawasaki KLX300SM Fuel Consumption
20-25 kmpl. (Avg.).
Kawasaki KLX300SM Tire Pressure
Front Tire Pressure is 28 psi and The Rear Tire Pressure is 33 psi.
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