2015 Suzuki RM-Z450 vs 2016 Yamaha YZ125
Full specifications comparison •
2 motorcycles
Full Specifications
Differs
Same
| General |
| Colours | Champion Yellow | Team Yamaha Blue/White |
| Warranty | 12 month unlimited mileage limited warranty. | 30 Day Limited Factory Warranty |
| Dimensions |
| Ground Clearance (mm) | 325 mm | 366 mm |
| Ground Clearance (in.) | 12.8 inches | 14.4 inches |
| Seat Height | 955 mm / 37.6 in. | 975 mm / 38.4 in. |
| Wheelbase | 1,495 mm / 58.9 in. | 1,443 mm / 56.8 in. |
| Height | 1,270 mm / 50.0 in. | 1,295 mm / 51.0 in. |
| Length | 2,190 mm / 86.2 in. | 2,136 mm / 84.1 in. |
| Width | 830 mm / 32.7 in. | 828 mm / 32.6 in. |
| Weights & Capacities |
| Fuel Capacity | 6.20 litres / 1.64 gallons | 7.95 litres / 2.10 gallons |
| Wet Weight | 113.0 kg / 249.1 lbs | 94.8 kg / 209.0 lbs |
| Engine |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) | - |
| Engine Type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Bore x Stroke (mm) | 96.0 x 62.1 mm | 54.0 x 54.5 mm |
| Bore x Stroke (in,) | 3.8 x 2.4 inches | 2.1 x 2.1 inches |
| Engine Detail | Aluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) coating | Reed-valve-inducted |
| Fuel System | Injection | Carburettor. Mikuni TMX 38 |
| Compression Ratio | 12.5:1 | 8.6:1 |
| Engine Lubrication | Semi-dry sump | - |
| Ignition | Electronic ignition | CDI |
| Starter | Kick | Kick |
| Valve System | 4 | - |
| Drivetrain |
| Final Drive | Chain | Chain |
| Gearbox | 5-speed | 6-speed |
| Primary Drive | Chain, DID520MXV4, 114 links | - |
| Chassis |
| Frame Type | - | Aluminum |
| Suspension - Front | Inverted telescopic, coil spring, oil damped | Speed-sensitive system inverted fork |
| Suspension - Rear | Link type, coil spring, oil damped | Fully adjustable single shock |
| Rake | - | 28.0° |
| Wheel Travel - Front | - | 300 mm / 11.8 in. |
| Wheel Travel - Rear | - | 315 mm / 12.4 in. |
| Wheels & Brakes |
| Brakes - Front Diameter (mm) | - | 250 mm |
| Brakes - Front Diameter (in.) | - | 9.8 inches |
| Brakes - Rear Diameter (mm) | - | 245 mm |
| Brakes - Rear Diameter (in.) | - | 9.6 inches |
| Brakes - Front | Single disc | Single disc. Hydraulic. |
| Brakes - Rear | Single disc | Single disc. Hydraulic. |
| Tyres - Front | 80/100-21 | 80/100-21 |
| Tyres - Rear | 110/90-19 | 100/90-19 |
Verdict
🏆
Winner on specs
2015 Suzuki RM-Z450
The 2015 Suzuki RM-Z450 edges out the 2016 Yamaha YZ125 thanks to its lower seat height and fuel injection. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.
Key Differences
2015 Suzuki RM-Z450 - Advantages
- 📏Lower seat height: 955 mm vs 975 mm - accessible to a wider range of rider heights.
- 🔧Fuel injection: Precise fuelling, better cold-start reliability, and lower maintenance requirements.
2016 Yamaha YZ125 - Advantages
- 🏔️More ground clearance: 366 mm vs 325 mm - better clearance over rocks and obstacles.
2015 Suzuki RM-Z450 vs 2016 Yamaha YZ125 - FAQs
What are the engine differences between the 2015 Suzuki RM-Z450 and 2016 Yamaha YZ125?
The 2015 Suzuki RM-Z450 uses Single cylinder, four-stroke, while the 2016 Yamaha YZ125 is powered by Single cylinder, two-stroke. This is a fundamental difference - the 2015 Suzuki RM-Z450 is a four-stroke engine while the 2016 Yamaha YZ125 runs a two-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which bike is better for shorter riders, the 2015 Suzuki RM-Z450 or the 2016 Yamaha YZ125?
The 2015 Suzuki RM-Z450 has the lower seat at 955 mm, making it more accessible. The 2016 Yamaha YZ125 sits higher at 975 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which should I buy, the 2015 Suzuki RM-Z450 or the 2016 Yamaha YZ125?
Both are strong choices. The 2015 Suzuki RM-Z450 has the edge in lower seat height and fuel injection, while the 2016 Yamaha YZ125 stands out for greater ground clearance. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.