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All Bikes/Compare/Harley-davidson Knucklehead vs Harley-davidson Softail Heritage

Harley-davidson Knucklehead vs Harley-davidson Softail Heritage

Side-by-side comparison for used motorcycle buyers

Harley-davidson Knucklehead vs Harley-davidson Softail Heritage. Harley-davidson Knucklehead: ~40 hp @ 4,800 rpm (EL 61ci high-compression; note: factory figures varied by year and configuration) hp, ~249 kg (wet/curb weight) weight, top speed ~153 km/h (95 mph, for the high-compression EL 61ci variant; note: estimate based on period testing), Motoryk rating 7.5/10. Harley-davidson Softail Heritage: 90 hp @ 5,020 rpm hp, 337 kg (curb weight, 2018+ Milwaukee-Eight model) weight, top speed 177 km/h, Motoryk rating 7.8/10.

Performance at a Glance

Green = winner per metric · Bars are relative to the higher value

Harley-davidson Knucklehead Harley-davidson Softail Heritage
Horsepower (hp)
40 hp
90 hp
Torque (Nm)
68 Nm
142 Nm
Top Speed (km/h)
153 km/h
177 km/h
Weight (kg) — lower is better
249 kg
337 kg
Type
Classic
Cruiser
Horsepower
~40 hp @ 4,800 rpm (EL 61ci high-compression; note: factory figures varied by year and configuration)
90 hp @ 5,020 rpm
Torque
~68 Nm @ 3,000 rpm (estimated)
142 Nm @ 3,000 rpm
Top Speed
~153 km/h (95 mph, for the high-compression EL 61ci variant; note: estimate based on period testing)
177 km/h
Weight
~249 kg (wet/curb weight)
337 kg (curb weight, 2018+ Milwaukee-Eight model)
Fuel
~7.5 L/100km (estimated, varies significantly by state of tune and riding conditions)
6.5 L/100km (approx. 15.4 km/L, real-world average)
Fairing
No
No

Individual Reviews

Harley-davidson Knucklehead
Harley-davidson Knucklehead
7.5/10

"A magnificent obsession that will test your patience and wallet equally."

Pros
+Unmatched historical significance
+Iconic mechanical character
+Strong collector value retention
Cons
Parts scarce and expensive
Leaks oil constantly
Specialist knowledge essential
Harley-davidson Softail Heritage
Harley-davidson Softail Heritage
7.8/10

"The definitive used classic cruiser — buy 2018-onwards, budget wisely."

Pros
+Milwaukee-Eight pulls effortlessly everywhere
+Huge used market availability
+Bulletproof resale value
Cons
Twin Cam heat management poor
Handling limits arrive early
Chrome upkeep costs real money

Top 10 Accessories

Picks that work on either bike.

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🛢️
Engine Oil
SAE 50 mineral motorcycle oil
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🛢️
Mobil 1 · Engine Oil
20W-50 Full Synthetic Motorcycle Oil
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⚙️
Oil Filter
Oil filter for Harley-Davidson Knucklehead
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⚙️
HifloFiltro · Oil Filter
HF204 Oil Filter
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🌬️
Air Filter
Air filter for Harley-Davidson Knucklehead
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🌬️
Air Filter
Replacement Air Filter
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Spark Plugs
Spark plugs for Harley-Davidson Knucklehead
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Spark Plugs
Spark Plugs
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Full-Face Motorcycle Helmet
Helmet
Full-Face Motorcycle Helmet
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Riding Gloves
Gloves
Riding Gloves
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