2018 Harley-Davidson Sportster Forty-Eight Special Dyno

Peak power from Harley’s 1,202cc engine

The 2018 Harley-Davidson Sportster Forty-Eight Special has a starting price of $11,299 and comes in three color options. We have the Billiard White edition for testing. The Sportster Forty-Eight Special is still equipped with the air-cooled Evolution engine with a 1,202cc displacement.

Authentic bold ’70s-inspired tank graphic and badge shows the bike’s retro roots.


To get the peak performance numbers out of our test bike we ran fourth-gear pulls in our dyno room and came to the final numbers of 57.84 hp and 66.80 pound-feet of torque.

dyno chart

Running fourth-gear pulls on the dyno, we got 57.84 hp at 5,450 rpm and 66.80 pound-feet of torque at 3,660 rpm.

Jon McDevitt

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Engine Specifications

ENGINE: Air-cooled Evolution
BORE: 3.5 in.
STROKE: 3.8 in.
DISPLACEMENT: 1202cc (73.4ci)
FUEL SYSTEM: Electronic Sequential Port Fuel Injection (ESPFI)
EXHAUST: Black staggered exhaust w/ slash-cut mufflers