Yamaha YZF-R3
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| Manufacturer | Yamaha Motor Company |
|---|---|
| Also called | Yamaha R3 |
| Parent company | Yamaha Corporation |
| Production | 2015–present |
| Class | Sport bike |
| Engine | 321 cc (19.6 cu in) liquid-cooled 4-stroke 8-valve DOHC180-degree crank inline-twin |
| Bore / stroke | 68.0 mm × 44.1 mm (2.7 in × 1.7 in) |
| Compression ratio | 11.2:1 |
| Top speed |
180 km/h (110 mph) (Estimated) 166 km/h (103 mph) |
| Power |
31 kW (42 hp) @ 10,750 rpm (claimed) 27.4 kW (36.7 hp) @ 10,750 rpm (rear wheel) |
| Torque |
21.8 lb·ft (29.6 N·m) @ 9,000 rpm (claimed) 19.8 lb·ft (26.8 N·m) @ 9,100 rpm (rear wheel) |
| Transmission | 6-speed constant mesh |
| Frame type | Steel diamond |
| Suspension | Front: 41 mm Telescopic fork Rear: Swingarm |
| Brakes | Front: Single 298 mm hydraulic disc Rear: Single 220 mm hydraulic disc |
| Tires | Front: 110/70-17 Rear: 140/70-17 |
| Rake, trail | 25°, 95 mm (3.7 in) |
| Wheelbase | 1,380 mm (54 in) |
| Dimensions |
L: 2,090 mm (82 in) W: 720 mm (28 in) H: 1,135 mm (44.7 in) |
| Seat height | 780 mm (31 in) |
| Weight | 167 kg (368 lb) (wet) |
| Fuel capacity | 14.0 L (3.1 imp gal; 3.7 US gal) |
| Oil capacity | 2.4 L (2.5 US qt) |
| Fuel consumption | 4.2–4.9 L/100 km; 67–58 mpg‑imp (56–48 mpg‑US) |
| Related |
Yamaha MT-03 Yamaha YZF-R25 |
180 km/h (110 mph) (Estimated)
31 kW (42 hp) @ 10,750 rpm (claimed)
21.8 lb·ft (29.6 N·m) @ 9,000 rpm (claimed)
The Yamaha YZF-R3 is a sport motorcycle manufactured by Yamaha since 2015. A first on Yamaha twins (the other being R25), the R3 uses an offset cylinder design.
The Yamaha R3 is an entry level sport motorcycle,it is designed to compete with rivals in 300cc segment such as Kawasaki Ninja 300. It is designed as a well balanced sport motorcycle, with some design similarity to R25, such as engine (which is bored out). With a low seat height, the well positioned windscreen sufficiently deflects the wind overhead. The 321 cc performance oriented engine is lightweight, powerful, and has a wide power band. Still, most of the power can be found from 7000 rpm to redline (10500 rpm approx) which makes overtaking very easy while cruising at 75 mph. The engine uses a downdraft induction fuel injection system for easy startup and the 10-spoke wheels are made up of cast aluminium to reduce unsprung weight. The all-aluminium cylinders are designed for the purpose of dissipating heat quickly. For 2017, the YZF-R3 offers the option of ABS which costs approx. $300 more than the standard variant.
The bike has the ability to reach 0–60 km/h (0–37 mph) in less than 3 seconds, and 0–100 km/h (0–62 mph) in 5.5 seconds. The 2015 R3 has a braking distance of 131.5 feet from 100–0 km/h (62–0 mph). While Indian reviewers praised the handling, same cannot be said for some western world reviewers. According to some reviewers, the braking system is not powerful enough to match the engine power, and is also prone to fishtailing under hard braking (non ABS). However, the engine braking can be used to assist deceleration, as the stock bike does not have a slipper clutch. Minimal adjustable suspension is considered another downside on the bike. However, compared other bike in the segment, it is considered finely tuned and sufficient.
Yamaha R3 competes directly with Kawasaki Ninja 300. Other competitors in entry level (sub-400 cc ) bikes include Kawasaki Ninja 400, Honda CBR300R, and KTM RC 390.
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Wikipedia