Harley Fat Boy 2013
V-twin softail cruiser motorcycle with solid-cast disc wheels
 | |
| Manufacturer | Harley-Davidson |
|---|---|
| Production | Since 1990 |
| Class | Cruiser |
| Engine |
1,868 cc (114 cu in) |
| Transmission | Chain (Primary) / Belt (final drive) |
| Brakes | Disc/disc |
| Wheelbase | 1,636 mm (64.4 in) |
The Harley-Davidson Fat Boy, is a V-twin softail cruiser motorcycle with solid-cast disc wheels.[2] Designed by Willie G. Davidson and Louie Netz, Harley-Davidson built a prototype Fat Boy in Milwaukee for the Daytona Bike Week rally at Daytona Beach in 1988 and 1989.[3] [4] Fat Boys produced from 1990-2017 are coded FLSTF, and FLFB (& FLFBS) from 2018.
The name is said (by a New York seller of Harley Davidson parts) to come from a contraction of Fat Man and Little Boy, the atomic bombs dropped on Japan during WWII.[5]
History and development [edit]
The Fat Boy's frame is derived from the 1984 "Softail" which appears to have a rigid hardtail chassis but which in fact has a swinging arm with concealed springs that was originally designed in a Missouri garage in the 1970's by a mechanical engineer named Bill Davis and later Patented in 1976.[6] Willie G the grandson of Harley-Davidson co-founder William A. Davidson originally turned down engineer Bill Davis' softail concept; but the company later relented, buying the rights and designing its own softail frame in-house.[7]
- After 1994, the exhaust was made seamless.
- In 1996 the master cylinder and switch gear were revised.
- In 1999 a new 1,450 cc (88 cu in) Twin Cam engine for the 2000 model year was used. This necessitated a bespoke engine variant and changes to the frame.
- In 2002 bullet-style indicators, alarm and immobilizer were added.[8]
- In 2005 a 15th Anniversary version was sold with a "Screamin' Eagle" engine, special paint and custom wheels.[8]
- In 2007 the displacement was increased to 1,584 cc (96.7 cu in)[8] and the transmission changed six speeds.[7]
- The 2010 "Fat Boy Lo" FLSTFB had the lowest ever Harley seat height.[2]
- In 2012 the Fat Boy received the new 1,690 cc (103 cu in) Twin Cam engine along with the rest of the softail range
- The 2018 Fat Boys have a redesigned softail frame with Showa front and rear suspension and new twin-counterbalanced Milwaukee-Eight engines. The two 2018 variants comprise:
- The FLFB 1,746 cc (107 cu in) with 109 lb⋅ft (148 N⋅m), and
- The FLFBS 1,868 cc (114 cu in) with 119 lb⋅ft (161 N⋅m)[9]
The 2018 Softail frame has a modified swingarm with a Showa rear monoshock suspension mounted beneath the seat, replacing earlier twin shocks. So as to provide a more comfortable and better controlled ride with improved handling, the front forks contain a Showa "Dual Bending Valve" (SDBV),[10] a cartridge simulator using two valves to control compression and rebound damping, giving linear damping characteristics proportional to fork stroke speed. Harley-Davidson claims the 2018 chassis is stiffer and lighter than earlier Softail and Dyna platforms.[11] Further upgrades include an LED headlight and 18-inch "Lakester" rims, with wider 160mm front and 240mm rear tires.[12] [13]
For 2020, the Fat Boy is only available with the Milwaukee-Eight 114 engine. Harley-Davidson also produced a 30th Anniversary edition for 2020.[14]
It is one of Harley-Davidson's best selling models and has appeared prominently in a number of TV shows and movies.[3] The Fat Boy earned a place in American pop culture after appearances in the movie Terminator 2: Judgment Day. One of the motorcycles used in Terminator 2 is displayed at the Harley-Davidson Museum. It appeared again in Terminator Genisys.[2] [15] [16] [17]
See also [edit]
- List of Harley-Davidson motorcycles
References [edit]
- ^ "MOTO USA". Retrieved 25 October 2016.
- ^ a b c "Harley Fat Boy History". Harley-Davidson. Retrieved 25 October 2016.
- ^ a b "Fat Boy a Harley bestseller and Hollywood favorite for 25 years". Milwaukee Wisconsin Journal Sentinel . Retrieved 28 October 2016.
- ^ "Vehicle Profile:25 Years of the Harley-Davidson Fat Boy". Harley-Davidson. Archived from the original on September 20, 2017. Retrieved May 28, 2017.
- ^ "Harley-Davidson Fatboy History".
- ^ Masker, Mark. "Three decades of Softail". Hot Bike. Bonnier Corporation. Retrieved May 21, 2019.
- ^ a b "Harley Fat Boy Launch". Sump Magazine. Retrieved 25 October 2016.
- ^ a b c "Harley Fat Boy Development". Hogrides. Retrieved 25 October 2016.
- ^ Cameron, Kevin (August 22, 2017). "2018 Harley-Davidson Softail Cruisers Tech and Development". Cycle World. Retrieved September 17, 2017.
- ^ SDBV image [1]
- ^ "2018 Harley-Davidson Softail Cruiser Lineup". Cycle World. 2017. Retrieved September 9, 2017.
- ^ MacDonald, Sean (August 22, 2017). "This Is The New 2018 Harley-Davidson Softail Fat Boy". Cycle World . Retrieved July 9, 2018.
- ^ MacDonald, Sean (August 22, 2017). "This Is The New 2018 Harley-Davidson Softail Fat Boy". Cycle World . Retrieved July 9, 2018.
- ^ "2020 Harley-Davidson Fat Boy 30th Anniversary Unveiled". UltimateMotorcycling.com. Ultimate Motorcycling. 3 February 2020. Retrieved 18 February 2020.
- ^ "'Terminator' Fat Boy preserved". Motorbike Writer. 6 February 2014. Retrieved 26 October 2016.
- ^ Barrett, Rick (July 22, 2015). "Fat Boy a Harley bestseller and Hollywood favorite for 25 years". The Milwaukee Journal Sentinel . Retrieved July 9, 2018.
- ^ Hinton, TJ (January 12, 2018). "Low Seat Height, Butt-Friendly Saddle, And A Smooth Ride". Top Speed . Retrieved July 9, 2018.
External links [edit]
Source: https://en.wikipedia.org/wiki/Harley-Davidson_Fat_Boy
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