Yamaha YZ85 vs Honda CRF150R – Mini Bike Showdown
Two-stroke versus four-stroke — it’s a debate as old as motocross itself. In this head-to-head, we’re looking at the 2025 Yamaha YZ85 and Honda CRF150R Big Wheel, two small-bore race bikes built for the youth and supermini classes. The YZ85 received its last major refresh in 2022, while the CRF150R has been largely unchanged since its 2007 debut. Despite the years between updates, both machines still bring plenty to the table. Here’s how they stack up when put to the test.
Overview & First Impressions
On paper, the YZ85 and CRF150R couldn’t be more different. The Yamaha’s a screaming two-stroke that rewards aggressive throttle control and precision shifting. The Honda, by contrast, is a smooth, torquey four-stroke with a broader powerband and a heavier, more stable feel.
When riders swap between the two, the difference in character is usually immediately clear. The YZ85 feels sharp, light, and eager to rev — perfect for those who love that traditional motocross snap. The CRF150R impresses with its instant low-end power and planted chassis, especially through ruts and bumps.
While the Yamaha’s engine thrives on clutch work and high rpm, the Honda delivers its grunt early, making it more forgiving in tighter, technical sections. Riders coming off 65s adapted quicker to the YZ85 thanks to its familiar two-stroke feel, while those looking to grow into bigger bikes appreciated the CRF150R’s more “mini big-bike” manners.
Verdict Box
Pros – Yamaha YZ85
Sharp handling and lightweight feel
High-revving engine with strong mid-to-top power
Updated frame and suspension (2022 refresh still shines)
Easier to maintain and cheaper to service
Cons – Yamaha YZ85
Less torque down low
Narrow powerband demands clutch work
Kickstart is stiff for smaller riders
Pros – Honda CRF150R
Strong, torquey four-stroke engine
Stable chassis ideal for bigger or taller riders
Smooth power delivery builds confidence
Excellent traction out of corners
Cons – Honda CRF150R
Heavier and more physically demanding
Carburated engine can hesitate off idle
Minimal updates since 2007
Not eligible for the 85cc race class
Verdict:
The Yamaha YZ85 is the pure race weapon for those chasing speed and precision, while the Honda CRF150R suits riders who prefer smooth, predictable power and a planted feel on the track.
FAQ
Q: How much power does the Yamaha YZ85 make?
Around 23–24 horsepower, delivered high in the rev range. It rewards riders who keep it singing.
Q: What’s the seat height of the YZ85?
Approximately 870 mm (34.3 in), making it ideal for riders transitioning from a 65.
Q: Is the CRF150R still carbureted?
Yes, it runs a Keihin FCR carburettor and benefits from occasional tuning for smooth throttle response.
Q: What’s the difference between the CRF150R and CRF150R Big Wheel?
The Big Wheel version has larger 19/16-inch wheels and a taller seat, giving it more stability for taller riders.
Q: Which bike is faster?
In straight-line acceleration, the Honda’s low-end punch stands out, but the YZ85’s lighter weight and higher top-end power make it quicker once revved out.
Q: Which bike is better for beginners?
The CRF150R’s forgiving nature helps newer riders, while the YZ85 is better suited to those already confident with clutch and throttle control.
Yamaha YZ85 vs Honda CRF150R – Which Mini MX Machine Wins?
Both bikes deliver unique experiences. The Yamaha YZ85 remains a lightweight, high-revving 85cc motocross bike built for racers who love to push the limits. The Honda CRF150R Big Wheel, on the other hand, brings four-stroke torque and stability, ideal for riders stepping toward full-size MX bikes. If you’re chasing a responsive, featherweight feel — go Yamaha. If you prefer a smoother, more planted ride — the Honda delivers. Either way, both are capable of launching young racers into the next stage of their motocross journey.