Compared to the Kawasaki KX112, the Yamaha YZ125 features a more powerful engine and higher torque. Additionally, the height, width, and weight of the Yamaha YZ125 exceed those of the Kawasaki KX112. It can be concluded that the Kawasaki KX112 is the ideal bike for individuals who want to experience dirtbike riding for the first time, while the Yamaha YZ125 is a suitable choice for beginners.
If you’re looking for a bike that offers smooth power delivery and manageable power for less experienced riders or younger riders transitioning to bigger bikes, the KX112 might be a suitable option.
On the other hand, if you prefer a bike with a high-revving engine that provides a strong power band in the mid-to-high RPM range and you have the experience to handle it, the YZ125 could be a better choice.
2024 Kawasaki KX112
The 2024 KX™112 boasts a powerful 112cc two-stroke engine, delivering robust low-end torque and peak power for rapid acceleration on the track. It facilitates the transition of aspiring riders to bigger bikes by offering proportionate power, lightweight handling, and an optimized chassis.
This bike incorporates an adjustable handlebar mounting system (ERGO-FIT®) and improved ergonomics to accommodate various rider heights and styles. It is equipped with Dunlop MX33 tires, front and rear disc brakes, and a robust perimeter frame, enhancing grip, stopping power, and stability during races.
The factory-inspired styling not only provides a bold aesthetic but also enhances rider control and movement. This feature is particularly appealing to young riders who aspire to emulate their Kawasaki racing heroes.
Top features 2024 Kawasaki KX112
- High tensile steel perimeter frame
- Adjustable 36mm inverted cartridge forks
- Front and rear disc brakes
- 19-inch front wheel and 16-inch rear wheel
- ERGO-FIT® sizing system with 6-position adjustable handlebar mount
2024 Yamaha YZ125
The YZ125 50th Anniversary Edition is popular among riders for several reasons. Firstly, it pays tribute to 50 years of Yamaha YZ production with its exclusive 1990s-inspired colors, purple seat, and black wheels. The bike features a powerful 125cc 2-stroke engine equipped with Yamaha’s famous YPVS for instant response and usability across the RPM range. Its Keihin Powerjet carburetor and lightweight internals provide instantaneous power. The motorcycle’s close-ratio 6-speed transmission ensures seamless performance at all speeds, and the Yamaha Power Valve System (YPVS) ensures a wide spread of torque.
Moreover, the YZ125 50th Anniversary Edition stands out due to its lightweight chassis, ultra-slim ergonomic bodywork, and best-in-class KYB suspension, making it one of the most agile motocross bikes available. The bike’s white bodywork is ultra-compact, enhancing rider mobility and agility. These features make it an excellent choice for beginner riders looking for a high-performance motocross bike.
Top features 2024 Yamaha YZ125
- Powerful 125cc 2-stroke Engine
- Lightweight Chassis and Bodywork
- Close Ratio 6-speed Transmission
- Best-in-class KYB Suspension
Specification: Kawasaki KX112 vs Yamaha YZ125
Engine
The Kawasaki KX112 is equipped with a 2-stroke single engine featuring an exhaust power valve (KIPS) and operates on a liquid-cooling system. On the other hand, the Yamaha YZ125 boasts a Forward-inclined single-cylinder 2-stroke engine with a Reed valve and YPVS liquid-cooling. The engines differ not only in displacement, with the KX112 at 112cc and the YZ125 at 125cc but also in their respective bore x stroke dimensions, with the KX112 measuring 52.5mm x 51.6mm and the YZ125 measuring 54.0mm x 54.5mm.
| Parameter | Kawasaki KX112 | Yamaha YZ125 |
| Engine type | 2-stroke single with exhaust power valve (KIPS), liquid-cooled | Liquid-cooled, 2-stroke, Forward-inclined single cylinder, Reed valve with YPVS |
| Displacement | 112cc | 125cc |
| Bore x stroke | 52.5mm x 51.6mm | 54.0 mm x 54.5 mm |
| Compression ratio | 9.9:1 (low speed) / 8.6:1 (high speed) | 8.2-10.1 : 1 |
| Maximum torque | – | – |
| Lubrication system | – | Premix |
| Clutch type | Wet, multi-disc clutch | Wet, Multiple Disc |
| Ignition system | CDI with Digital Advance | CDI |
| Starter system | Kick | Kick |
| Transmission system | 6-speed, return shift, with wet multi-disc manual clutch | Constant Mesh, 6-speed |
| Final transmission | Chain | Chain |
| Fuel system | 28mm Keihin carburetor | Keihin PWK38S/1 |
Chassis
| Parameter | Kawasaki KX112 | Yamaha YZ125 |
| Frame | High-tensile steel perimeter design with subframe member | Semi double cradle |
| Caster angle | 29º | 26º |
| Trail | 109 mm | 109 mm |
| Front suspension system | 36mm inverted telescopic cartridge fork with 20-way compression damping | Upside-down telescopic fork |
| Rear suspension system | Uni-Trak® gas charged shock with piggyback reservoir with 24-way compression and 21-way rebound damping plus adjustable spring preload | Swingarm, link suspension |
| Front travel | 275 mm | 300 mm |
| Rear travel | 275 mm | 315 mm |
| Front brake | Single 220mm petal disc with dual-piston caliper | Hydraulic single disc, Ø270 mm |
| Rear brake | Single 184mm petal disc with single-piston caliper | Hydraulic single disc, Ø240 mm |
| Front tyre | 70/100-19M | 80/100-21 51M |
| Rear tyre | 90/100-16 | 100/90-19 57M |
Dimensions
The Kawasaki KX112, with its lighter weight and slightly more compact dimensions, may be preferable for riders who prioritize agility and maneuverability on the track. On the other hand, the Yamaha YZ125, with its larger size and higher seat, could be a suitable choice for riders seeking a more spacious and commanding riding position, potentially favoring comfort during longer rides. Ultimately, the choice between these bikes will depend on individual rider preferences, riding style, and intended use, whether it is for motocross competitions or recreational off-road riding.
| Parameter | Kawasaki KX112 | Yamaha YZ125 |
| Overall length | 1920 mm | 2,135 mm |
| Overall width | 765 mm | 825 mm |
| Overall height | 1151 mm | 1,295 mm |
| Seat height | 872 mm | 980 mm |
| Wheel base | 1311 mm | 1,445 mm |
| Minimum ground clearance | 330 mm | 365 mm |
| Wet weight (including full oil and fuel tank) | 77 kg | 95 kg |
| Fuel tank capacity | 5.0 L | 7.0 L |
i think for the price and over all everything i would take the kx 112 but if you have a big budget i would go for yz 125 but they are to amazing bikes.