Harley-Davidson Softail Slim FLSL 2021 vs. Harley-Davidson Softail Fat Boy FLSTF 2009

Technical Specifications Harley-Davidson Softail Slim FLSL 2021 compared to Harley-Davidson Softail Fat Boy FLSTF 2009

Harley-Davidson Softail Slim FLSL 2021

Harley-Davidson Softail Fat Boy FLSTF 2009

Show all

Same only

Differences

Harley-Davidson Softail Slim FLSL 2021

Harley-Davidson Softail Fat Boy FLSTF 2009

Engine and Drive Train

Bore	Bore	100 mm	Bore	95.3 mm
Stroke	Stroke	111.1 mm	Stroke	111.1 mm
Torque	Torque	145 Nm	Torque	120 Nm
Rpm at Torque	Rpm at Torque	3,000 rpm	Rpm at Torque	3,300 rpm
Transmission	Transmission	Belt	Transmission	Belt
Cooling	Cooling	Air	Cooling	Air
Displacement	Displacement	1,745 ccm	Displacement	1,584 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	2,310 mm	Length	2,400 mm
Wheelbase	Wheelbase	1,630 mm	Wheelbase	1,635 mm
Seat Height	Seat Height	660 mm	Seat Height	645 mm
Fuel Tank Capacity	Fuel Tank Capacity	18.9 l	Fuel Tank Capacity	18.9 l