Engineering:Yamaha YZ450FX
| Manufacturer | Yamaha Motor Company |
|---|---|
| Parent company | Yamaha Corporation |
| Class | Enduro |
| Engine | Single-cylinder, DOHC, Multivalve, water-cooled, four-stroke |
| Transmission | 5-speed, wet clutch, chain drive |
| Suspension | Front: Kayaba inverted fork; fully adjustable Rear: single shock; fully adjustable |
| Brakes | Hydraulic single disc brakes |
| Tires | Front: 21 in (530 mm) Rear:18 in (460 mm) |
The Yamaha YZ450FX is an off-road performance motorcycle made by Yamaha Motor Company. It currently has a 450 cc (27 cu in) liquid-cooled single-cylinder engine. First offered in 2016 at 450cc, it shared many components and design concepts with both the Yamaha WR450F and Yamaha YZ450F motocross model. The 2016 model premiered as a closed-course, competition GNCC/Woods racer.[1] The YZ450FX features a wide ratio transmission, 18" wheel, electric start and kickstand.[1]
First Generation (2016)
The YZ450FX was introduced in 2016[1] and the first generation continued through 2018. The frame is the same as the YZ450F of that year but with different engine mount brackets.[1]
Second Generation (2019)
| Manufacturer | Yamaha |
|---|---|
| Production | 2019-2020 |
| Engine | Titanium 4-value, 450 cc, 97mmx 60.9mm, compression ratio 12.8:1[2] |
| Transmission | Constant mesh, 5 speed[2] |
| Frame type | Semi double cradle, aluminum[2] |
| Suspension | Front: KYB SSS cartridge forks, 12.2 in (310 mm) travel Rear: 12.5 in (318 mm) travel[2] |
| Brakes | Front: Hydraulic single disc, 270mm Rear: Hydraulic single disc, 245mm[2] |
| Tires | Front: 80/100-21 51M Rear: 120/100-18 65M[2] |
| Rake, trail | 27.2°, 116 mm (4.6 in)[2] |
| Wheelbase | 1,480 mm (58 in)[2] |
| Dimensions | L: 2,175 mm (85.6 in)[2] W: 825 mm (32.5 in)[2] H: 1,270 mm (50 in)[2] |
| Seat height | 955 mm (37.6 in)[2] |
| Weight | 116 kg (256 lb)[2] (wet) |
| Fuel capacity | 2.2 US gal (8.3 l; 1.8 imp gal)[2] |
The second generation YZ450FX was introduced in 2019 and featured an all new engine, updated suspension settings, revised chassis, and a wireless, smartphone based engine tuning app.[3] The kickstarter was removed for this generation and cannot be added.
Third Generation (2021)
The third generation YZ450FX was introduced in 2021 and featured a lighter cylinder head, new camshafts and piston, and a longer connecting rod.[4] It shares the same chassis as the YZ450F.[4]
See also
References
- ↑ 1.0 1.1 1.2 1.3 "2016 Yamaha YZ450FX Dirt Bike". https://www.dirtrider.com/2016-yamaha-yz450fx-first-test/.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 "Yamaha Owner's Service Manual (2019 YZ450FX)". https://library.ymcapps.net/library/om/contents/pdf/10/B3J-28199-10_02.pdf.
- ↑ "2019 Yamaha YZ450FX | Cycle World". https://www.cycleworld.com/2019-yamaha-yz450fx/.
- ↑ 4.0 4.1 "2021 Yamaha YZ450FX Review | Dirt Rider". https://www.dirtrider.com/story/dirt-bike-tests-and-reviews/2021-yamaha-yz450fx-review/.
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