Suzuki RM-Z250 Review (2015–2020)

After a sharp-handling 250 four-stroke that won’t drain your savings? The Suzuki RM-Z250 from 2015–2020 could be the under-the-radar gem you’re looking for. Famous for its razor-precise cornering and easy-to-manage power, it’s a bike that rewards smart riders rather than pure horsepower addicts. In this review, we’ll unpack how it rides, what changed through the years, what to watch for when buying used, and who the RM-Z250 suits best in the UK motocross scene.

Overview & first impressions

Suzuki’s RM-Z250 has long been the corner-king of the 250 class. It’s the bike that lets you dive inside the berm and make passes stick. The chassis feels narrow, the cockpit familiar, and the bike feels lighter than its spec sheet suggests.

During 2015–2020, the RM-Z250 didn’t evolve as fast as rivals, but that consistency now works in a used buyer’s favour. The platform is simple, proven, and often cheaper to buy than other brands.

There are two key generations:

  • 2015–2018: Older platform with SFF (Showa Separate Function) or KYB PSF2 air forks, kickstart only, smooth and forgiving power.

  • 2019–2020: Fully redesigned frame, spring forks return, updated engine and styling, plus revised mapping—but still no electric start.

In short: sharp steering, friendly power, and strong value if you’re willing to kick it.

Verdict box

Pros:

  • Class-leading cornering precision and agility

  • Smooth, linear power delivery—great for beginners

  • Excellent value on the used market

  • Simple to maintain; many parts shared across model years

  • Reliable when serviced regularly

Cons:

  • No electric start (any year)

  • Heaviest in class on paper

  • 2016–2018 air forks can feel harsh or need setup knowledge

  • Engine lacks top-end punch for advanced racers

Verdict:
For riders chasing corner speed and affordability, the RM-Z250 is a hidden gem. It’s easy to ride fast, forgiving for learners, and great value if you find one in clean condition.

Model-specific FAQ

When did the RM-Z250 get spring forks again?
In 2019, Suzuki replaced the PSF2 air fork with coil-spring Showa units that most riders prefer.

Does it have electric start?
No. Every RM-Z250 from 2015–2020 is kickstart only.

Is the engine still competitive?
For most riders, yes—it’s torquey down low and quick through the midrange, just not as explosive up top as a KTM or Yamaha.

Is it good for beginners?
Very. The linear power and stable handling make it easy to control and ideal for learning track skills.

Any known issues?
Air-fork maintenance on 2016–2018 models (if neglected), worn clutches on older bikes, and basic wear items like radiators and linkage bearings from crashes or lack of greasing.

Strengths, weaknesses & used-buying advice

Engine & performance

The RM-Z250’s engine character defines its ride: strong bottom-to-mid power, smooth response, and a flat, predictable top-end. It thrives on tight UK circuits where you’re in and out of corners rather than pinned on long straights.

  • 2015–2018: Classic single-cam design with fuel injection, excellent throttle feel, and torque where you use it most.

  • 2019–2020: New cylinder head, intake, and mapping sharpen response, but the overall character stays friendly and easy to ride.

It’s not the rev-monster of the class, but it builds traction beautifully—ideal for wet or technical tracks.

Chassis, suspension & handling

Handling is where Suzuki steals the spotlight. The RM-Z turns almost telepathically; once you commit, the front tyre digs in and tracks your chosen line.

  • 2015–2018: Slightly lighter feel, but the air-fork setup (KYB PSF2) divided opinions—great when dialled, harsh if ignored.

  • 2019–2020: All-new aluminium frame and Showa coil-spring forks improved comfort and predictability, giving the bike more stability in rough sections while keeping the same cornering sharpness.

On high-speed straights, older models can feel twitchy, so a steering damper or correct sag setup helps. The 2019+ chassis settled that nervousness nicely.

Maintenance & reliability

The RM-Z250 might lack flash, but it’s mechanically solid. The engine is simple to service and parts are affordable.

  • Oil & filter changes: Every 5–8 hours for track use.

  • Valve checks: Every 30–40 hours or if hard starting develops.

  • Forks: Air forks (2016–2018) must have pressures checked before every ride; coil forks (2019–2020) just need standard service intervals.

  • Clutch: Can wear faster under heavy abuse—easy to replace.

  • Cooling system: Inspect radiators for bends or leaks (Suzukis are often tipped over due to their quick-turning nature).

As long as oil and filters were maintained, these engines can last as long as any Japanese rival.

Used-buying tips by year

  • 2015: Showa SFF fork (coil spring); simple and reliable.

  • 2016–2018: KYB PSF2 air forks—ask if the owner has the pump and service history. Neglected air forks can feel harsh or unbalanced.

  • 2019–2020: Major redesign. Look for cracked plastics around the new bodywork and ensure the Showa BFRC shock feels smooth (no fade or dead spots).

Always check for: smooth shifting, easy hot starts, tight steering bearings, clean air filter, and no oil leaks from the shock or forks.

Because they’re often cheaper, some RM-Zs see rougher use. A clean, tight example is worth paying extra for.

The Suzuki RM-Z250 (2015–2020) is a perfect reminder that motocross fun isn’t only about horsepower. It corners like nothing else, puts its power down smoothly, and delivers dependable Japanese engineering at a used-market bargain. For UK riders on a budget—or anyone who values control and handling finesse over sheer speed—a well-kept RM-Z250 is one of the smartest buys in the 250cc motocross world.