| Engine | Yamaha R6 | Yamaha R125 |
|---|---|---|
| Displacement | 600 cc | 124 cc |
| Max power | 121 hp (@13 000 RPM) | 15 hp (@10 000 RPM) |
| Max torque | 44 lb ft (@12 000 RPM) | 8 lb ft (@8 000 RPM) |
| Redline | 15 500 RPM | 10 000 RPM |
| Idling speed | 1 200 RPM | |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-4 | SOHC Single |
| Compression | 12.40:1 | 11.20:1 |
| Oil capacity | 3.22 quart | 1.14 quart |
| Oil type | 10W40, Motul 300V 10W40, Shell Rotella 10W40 | |
| Spark plug type | NGK CR9EK, NGK CR10EK | |
| Cooling | Liquid | Liquid |
| Valves | 16 | 4 |
| Bore | 65.5 mm | 52.0 mm |
| Stroke | 44.5 mm | 58.6 mm |
| Throttle bore | 38.0 mm | |
| Weight to power | 3.32 lbs/hp | 20.87 lbs/hp |
| Power to weight | 753 hp/2500lbs | 119 hp/2500lbs |
| Battery type | 12 V 8 Ah, GT9B-4 | 12V 5.5Ah |
| Gearbox | Yamaha R6 | Yamaha R125 |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 6 | 6 |
| Primary ratio | 1.955 | 3.042 |
| Final drive | 3.0 | 3.42 |
| 1. gear | 2.846 (68 mph) | 2.833 (24 mph) |
| 2. gear | 1.947 (100 mph) | 1.875 (37 mph) |
| 3. gear | 1.556 (125 mph) | 1.364 (51 mph) |
| 4. gear | 1.333 (146 mph) | 1.143 (60 mph) |
| 5. gear | 1.19 (164 mph) | 0.957 (72 mph) |
| 6. gear | 1.083 (180 mph) | 0.84 (82 mph) |
| Chasis | Yamaha R6 | Yamaha R125 |
|---|---|---|
| Frame type | Diamond | Steel deltabox |
| Front susp. | Telescopic fork USD, 4.72 in travel | KYB 41mm USD, 5.12 in travel |
| Rear susp. | Swingarm link, spring/gas-oil damper | Swingarm monoshock, 4.49 in travel |
The 2003 - 2004 Yamaha R6 and the 2019 Yamaha R125 are both motorcycles with different target audiences and unique features. The 2003 - 2004 Yamaha R6 is designed for speed and power while the 2019 Yamaha R125 is aimed at beginners and new riders. The 2003 - 2004 Yamaha R6 features a powerful 599cc engine and a sleek design that exudes speed and agility. It is aimed at experienced riders who want an ultra-fast motorcycle that is capable of taking on the track or the streets. The R6 boasts impressive handling, acceleration, and braking, perfect for riders who want to push their limits. On the other hand, the 2019 Yamaha R125 is designed for beginners and new riders. It has a 125cc engine, lightweight design, and a comfortable riding position, making it ideal for city riding or commuting. The R125 also features a sophisticated LCD dashboard that displays relevant information such as speed, fuel level, and gear position. In terms of best points as compared to each other, the 2003-2004 Yamaha R6 has an edge in terms of speed and performance, while the 2019 Yamaha R125 is more focused on practicality and ease of use. The R6 has a top speed of 160 mph and can go from 0 to 60 in just 3 seconds, while the R125 has a top speed of around 75 mph. Both motorcycles shine in their respective categories. The 2003 - 2004 Yamaha R6 is perfect for riders who seek adrenaline-pumping speed and power, while the 2019 Yamaha R125 is a great entry-level motorcycle that is easy to ride and handle. Both bikes also have great builds and sleek designs that showcase Yamaha's commitment to quality and innovation. However, both motorcycles also have areas where they let down. The R6 is known for being uncomfortable for long rides due to its aggressive riding position while the R125 is not suitable for experienced riders who want a more powerful bike that can take on tougher terrains. In conclusion, the 2003 - 2004 Yamaha R6 and 2019 Yamaha R125 are two very different motorcycles aimed at different audiences. While they both have their strengths and weaknesses, it ultimately depends on the rider's level of experience and individual preferences when choosing between the two. |