| Engine | Yamaha YBR 125 | Yamaha R1 |
|---|---|---|
| Displacement | 125 cc | 998 cc |
| Max power | 10 hp (@7 800 RPM) | 170 hp (@12 500 RPM) |
| Max torque | 6 lb ft (@6 000 RPM) | 78 lb ft (@10 500 RPM) |
| Redline | 10 000 RPM | 13 500 RPM |
| Idling speed | 1 250 RPM | |
| Management | Fuel Injection | Fuel Injection |
| Layout | SOHC Single | DOHC Inline-4 |
| Compression | 10.00:1 | 12.40:1 |
| Oil capacity | 1.14 quart | 3.60 quart |
| Oil type | 10W30, 10W40 | 15W50, Motul 300V 15W50, Liqui Moly 15W50 |
| Spark plug type | NGK CR6HSA | NGK CR9EK |
| Cooling | Air | Liquid |
| Valves | 2 | 16 |
| Bore | 54.0 mm | 77.0 mm |
| Stroke | 54.0 mm | 53.6 mm |
| Weight to power | 28.66 lbs/hp | 2.52 lbs/hp |
| Power to weight | 87 hp/2500lbs | 993 hp/2500lbs |
| Battery type | YTX7L-BS, 12V 6Ah |
| Gearbox | Yamaha YBR 125 | Yamaha R1 |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | ||
| Gears count | 5 | 6 |
| Primary ratio | 3.4 | 1.512 |
| Final drive | 3.071 | 2.647 |
| 1. gear | 2.643 (26 mph) | 2.533 (97 mph) |
| 2. gear | 1.778 (39 mph) | 2.063 (119 mph) |
| 3. gear | 1.316 (53 mph) | 1.762 (139 mph) |
| 4. gear | 1.045 (66 mph) | 1.522 (161 mph) |
| 5. gear | 0.875 (79 mph) | 1.364 (180 mph) |
| 6. gear | 1.269 (194 mph) |
| Chasis | Yamaha YBR 125 | Yamaha R1 |
|---|---|---|
| Frame type | Diamond steel | Diamond |
| Front susp. | Telescopic fork, 110mm | Telescopic fork - Coil spring/oil damper (120 mm travel) |
| Rear susp. | Swingarm, 4.13 in travel | Swingarm (link suspension) - Coil spring/gas-oil damper |