
Harley-Davidson’s motorcycles are the most popular brand in the US market. There are so many different model in Harley-Davidson’s production. It can categorize as Sportster, Dyna, Softail, Touring and Revolution.
For Softail models, it utilize th big-twin engine (F) and the Softail chassis (ST). Softail models that use small-diameter telescopic forks similar to those used on the Sportster (X) have designations that begin with FXST, e.g., FXSTB (Night Train), FXSTD (Deuce), and FXSTS (Springer). Softail models that use large-diameter telescopic forks similar to those used on the touring bikes (L) have designations beginning with FLST, e.g., FLSTF (Fat Boy), FLSTC (Heritage Softail Classic), and FLSTN (Softail Deluxe). Softail models that use Springer forks with a 21-inch (530 mm) wheel have designations that begin with FXSTS, e.g., FXSTS (Springer Softail) and FXSTSB (Bad Boy). Softail models that use Springer forks with a 16-inch (410 mm) wheel have designations that begin with FLSTS, e.g., FLSTSC (Springer Classic) and FLSTSB (Cross Bones). Today, I would like to talk about the 2001-2007 Softail series with EFI engine which are the Night Train and Fat Boy.






About the Harley-Davidson Night Train, it use the V2 engine type with 4 stroke. The torque has 119.19Nm (12.2 kgf-m or 87.0 ft. lbs) at 2750 RPM. The compression of the Night Train is 9.2:1. The bore x stroke is 95.3 x 100.0 mm (3.8 x 3.9 inches). The fuel system is injection which is electronic sequential port fuel injection (ESPFI). The starter is electric and use air cooling system. The gearbox is 6-speed and the clutch is multi-plate with diaphragm spring in oil bath.
On the physical measure, Night Train’s dry weight is 297.6kg (656.0 pounds), the weight include oil, gas, etc is around 309.3kg (682.0 pounds). The seat height is 681mm (26.8 inches) and the overall length is 2413mm (95.0 inches). The wheelbase is 1638mm (64.5 inches). The fuel capacity is 18.92 litres (5.00 gallons).





About the 2007 Harley-Davidson Fat Boy, the engine brand name is Twin Cam 96B and the engine type is V Twin. It has 2 cylinders and 4-stroke. The Torque is 89.8/121.8 (Ft Lbs /Nm). The Torque RPM is 2750 and the bore (mm/in) is 95.3 / 3.75. The stroke (mm/in) is 111.3 / 4.38. The displacement (cc/ci) is 1573.2 /96. The compression ratio is 9.2 : 1. It has a electric starter and the MPG is 53 on freeway and 34 on city. The transmission type is manual and the number of speeds is 6. The gear ratio (1/2/3/4/5/6) is 9.31 / 6.42 / 4.77 / 3.93 / 3.28 / 2.79.
About the brakes on the Fat Boy, the type of the front brake is disc, and the brake diameter is 11.5 inch / 292.1 mm. The front brake rotor width is 0.2 inch / 5.1 mm. It as 4 front caliper pistons and on the rear brake, the rear brake diameter is 11.5 inches / 292.1 mm. The rear brake rotor width is 0.23 inch / 5.8 mm. It also has 4 rear caliper pistons.
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01-07 Harley Davidson Night Train EFI Twin Cam Spike Air Intake -Volar
01-07 Harley Davidson Night Train EFI Twin Cam Spike Air Intake -Volar
01-07 Harley Davidson Fat Boy EFI Twin Cam Spike Air Intake -Volar
01-07 Harley Davidson Fat Boy EFI Twin Cam Spike Air Intake -Volar
- Sportster With the exception of the street-going XR1000 of the 1980s and the XR1200 most Sportsters made for street use have the prefix XL in their model designation. For the Sportster Evolution engines used since the mid 1980s, there have been two engine sizes. Motorcycles with the smaller engine are designated XL883, while those with the larger engine were initially designated XL1100. When the size of the larger engine was increased from 1,100 cc to 1,200 cc, the designation was changed accordingly from XL1100 to XL1200. Subsequent letters in the designation refer to model variations within the Sportster range, e.g. the XL883C refers to an 883 cc Sportster Custom, while the XL1200S designates the now-discontinued 1200 Sportster Sport.
- Dyna models utilize the big-twin engine (F), small-diameter telescopic forks similar to those used on the Sportster (X), and the Dyna chassis (D). Therefore, all Dyna models have designations that begin with FXD, e.g., FXDWG (Dyna Wide Glide) and FXDL (Dyna Low Rider).
- Softail models utilize the big-twin engine (F) and the Softail chassis (ST).
- Softail models that use small-diameter telescopic forks similar to those used on the Sportster (X) have designations that begin with FXST, e.g., FXSTB (Night Train), FXSTD (Deuce), and FXSTS (Springer).
- Softail models that use large-diameter telescopic forks similar to those used on the touring bikes (L) have designations beginning with FLST, e.g., FLSTF (Fat Boy), FLSTC (Heritage Softail Classic), and FLSTN (Softail Deluxe).
- Softail models that use Springer forks with a 21-inch (530 mm) wheel have designations that begin with FXSTS, e.g., FXSTS (Springer Softail) and FXSTSB (Bad Boy).
- Softail models that use Springer forks with a 16-inch (410 mm) wheel have designations that begin with FLSTS, e.g., FLSTSC (Springer Classic) and FLSTSB (Cross Bones).
- Touring models use Big-Twin engines and large-diameter telescopic forks. All Touring designations begin with the letters FL, e.g., FLHR (Road King) and FLTR (Road Glide).
- Revolution models utilize the Revolution engine (VR), and the street versions are designated Street Custom (SC). After the VRSC prefix common to all street Revolution bikes, the next letter denotes the model, either A (base V-Rod: discontinued), AW (base V-Rod + W for Wide with a 240mm rear tire), B (discontinued), D (Night Rod: discontinued), R (Street Rod: discontinued), SE and SEII(CVO Special Edition), or X (Special edition). Further differentiation within models are made with an additional letter, e.g., VRSCDX denotes the Night Rod Special.
- The factory drag bike, the VRXSE Destroyer, uses X instead of SC to denote a non-street bike and SE to denote a CVO Special Edition
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