Harley-Davidson Softail Fat Boy FLSTF 2009 vs. Harley-Davidson Softail Low Rider S FXLRS 2021

Technical Specifications Harley-Davidson Softail Fat Boy FLSTF 2009 compared to Harley-Davidson Softail Low Rider S FXLRS 2021

Harley-Davidson Softail Fat Boy FLSTF 2009

Harley-Davidson Softail Low Rider S FXLRS 2021

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Differences

Harley-Davidson Softail Fat Boy FLSTF 2009

Harley-Davidson Softail Low Rider S FXLRS 2021

Engine and Drive Train

Bore	Bore	95.3 mm	Bore	102 mm
Stroke	Stroke	111.1 mm	Stroke	114.3 mm
Torque	Torque	120 Nm	Torque	155 Nm
Rpm at Torque	Rpm at Torque	3,300 rpm	Rpm at Torque	3,000 rpm
Transmission	Transmission	Belt	Transmission	Belt
Cooling	Cooling	Air	Cooling	Air
Displacement	Displacement	1,584 ccm	Displacement	1,868 ccm

Brakes Front

Piston	Piston	Four pistons	Piston	Four pistons

Brakes Rear

Piston	Piston	Double piston	Piston	Double piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper

Dimensions and Weights

Length	Length	2,400 mm	Length	2,355 mm
Wheelbase	Wheelbase	1,635 mm	Wheelbase	1,615 mm
Seat Height	Seat Height	645 mm	Seat Height	690 mm
Fuel Tank Capacity	Fuel Tank Capacity	18.9 l	Fuel Tank Capacity	18.9 l