Harley-Davidson Fat Boy S
Harley-Davidson Fat Boy S History
- Power 103.0 HP
- Displacement 1,917 cc
- Seat height 658.0 mm
Harley-Davidson Fat Boy S History & Generations Source: Wikipedia
The master cylinder and switch gear were revised.
A new 1,450 cc (88 cu in) Twin Cam engine
Was used. This necessitated a bespoke engine variant and changes to the frame.
Bullet-style indicators, alarm and immobilizer were added.
A 15th Anniversary version was sold with a "Screamin' Eagle" engine, special paint and custom wheels.
The displacement was increased to 1,584 cc (96.7 cu in) and the transmission changed six speeds. The 2010 "Fat Boy Lo" FLSTFB had the lowest ever Harley seat height.
The Fat Boy received the new 1,690 cc (103 cu in) Twin Cam engine along with the rest of the softail range 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: FLFB 1,746 cc (107 cu in…
The Fat Boy is only available with the Milwaukee-Eight 114 engine. Harley-Davidson also produced a 30th Anniversary edition
The Fat Boy received an upgraded powertrain with the Milwaukee-Eight 117 engine, a reworked rear suspension, driver safety enhancements, and appearance updates including new wheels. A limited serialized run of 1990 35th anniversary Fat Boy Grey Ghost was released as part of the Icons collection with…
History text adapted from Wikipedia under CC BY-SA.
Harley-Davidson Fat Boy S Technical specs
Harley-Davidson Fat Boy S market reference value
Reference values from the monthly insurance value list published by the Insurance Association of Türkiye. New vehicles use the authorised distributor’s non-campaign list price; used ones use market averages.
Values are nominal Turkish lira; much of the rise reflects inflation. Switch to dollars or euros to see the real trend.
Values from the August 2026 list. All model years are valued on the same date, so this curve is free of inflation.
Source: Insurance Association of Türkiye, Kasko Değer Listesi, August 2026. These are reference values for insurers and carry no mileage, damage or condition breakdown.
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