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All Bikes/Compare/Royal Enfield Thunderbird Twins vs Harley-davidson Forty-eight

Royal Enfield Thunderbird Twins vs Harley-davidson Forty-eight

Side-by-side comparison for used motorcycle buyers

Royal Enfield Thunderbird Twins vs Harley-davidson Forty-eight. Royal Enfield Thunderbird Twins: 350: ~19.8 hp @ 5,250 rpm | 500: ~27.2 hp @ 5,100 rpm hp, 350: ~192 kg (curb) | 500: ~200 kg (curb) weight, top speed ~130 km/h (350 TwinSpark); ~140 km/h (500 TwinSpark) — estimated, Motoryk rating 6.8/10. Harley-davidson Forty-eight: 60 hp @ 6,000 rpm hp, 253 kg (wet/curb weight) weight, top speed 170 km/h, Motoryk rating 7.5/10.

Performance at a Glance

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

Royal Enfield Thunderbird Twins Harley-davidson Forty-eight
Horsepower (hp)
350 hp
60 hp
Torque (Nm)
350 Nm
97 Nm
Top Speed (km/h)
130 km/h
170 km/h
Weight (kg) — lower is better
350 kg
253 kg
Type
Cruiser
Cruiser
Horsepower
350: ~19.8 hp @ 5,250 rpm | 500: ~27.2 hp @ 5,100 rpm
60 hp @ 6,000 rpm
Torque
350: ~28 Nm @ 4,000 rpm | 500: ~41.3 Nm @ 4,000 rpm
97 Nm @ 3,500 rpm
Top Speed
~130 km/h (350 TwinSpark); ~140 km/h (500 TwinSpark) — estimated
170 km/h
Weight
350: ~192 kg (curb) | 500: ~200 kg (curb)
253 kg (wet/curb weight)
Fuel
Approximately 28–32 km/L (3.1–3.6 L/100km) for the 350 TwinSpark; ~25–28 km/L for the 500 TwinSpark (estimated real-world)
5.5 L/100km (approx. 18 km/L typical real-world average)
Fairing
No
No

Individual Reviews

Royal Enfield Thunderbird Twins
Royal Enfield Thunderbird Twins
6.8/10

"Flawed but deeply characterful cruiser that rewards patient, practical buyers."

Pros
+Addictive low-rev torque
+Cheap, accessible spare parts
+Stunning retro cruiser aesthetics
Cons
Inconsistent pre-2019 build quality
Vibration above 80mph
Electrical reliability concerns
Harley-davidson Forty-eight
Harley-davidson Forty-eight
7.5/10

"A charismatic city scramblers that demands realistic expectations about range and comfort."

Pros
+Bulletproof Sportster engine reliability
+Parts availability everywhere
+Genuinely stunning visual presence
Cons
Tiny tank, terrible range
Seat punishes longer rides
Many dropped examples exist

Top 10 Accessories

Picks that work on either bike.

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🛢️
Engine Oil
10W-40 JASO MA2 motorcycle engine oil
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Klotz
Engine Oil
Klotz
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⚙️
Oil Filter
Oil Filter for Royal Enfield Thunderbird Twins
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Front & Rear Brake Pads for Harley Davidson XL883 XL1200 XL883L XL883N XL883R XL1200C XL1200CX XL1200 T/V/X XL 1200 XS/NS Sportster SuperLow Iron Roadster Custom Forty Eight 2014-2023
Brake Pads
Front & Rear Brake Pads for Harley Davidson XL883 XL1200 XL883L XL883N XL883R XL1200C XL1200CX XL1200 T/V/X XL 1200 XS/NS Sportster SuperLow Iron Roadster Custom Forty Eight 2014-2023
View on Amazon →
🌬️
Air Filter
Air Filter for Royal Enfield Thunderbird Twins
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Dunlop Harley Davidson D402 Front Tire (Single / MH90-21)
Tires
Dunlop Harley Davidson D402 Front Tire (Single / MH90-21)
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Spark Plugs
Spark Plug for Royal Enfield Thunderbird Twins
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YTX20HL-BS 12V 20Ah AGM Sealed Motorcycle Battery, Maintenance-Free, Compatible with Harley Davidson, Honda, ATV, UTV, Snowmobile Replacement
Battery
YTX20HL-BS 12V 20Ah AGM Sealed Motorcycle Battery, Maintenance-Free, Compatible with Harley Davidson, Honda, ATV, UTV, Snowmobile Replacement
View on Amazon →
Podoy 428 Motorcycle Chain 132 Links Gold with Chain Breaker, Heavy Duty Drive Chain Replacement for 110cc 125cc 150cc Pit Dirt Bike ATV Go Kart
Chain & Lube
Podoy 428 Motorcycle Chain 132 Links Gold with Chain Breaker, Heavy Duty Drive Chain Replacement for 110cc 125cc 150cc Pit Dirt Bike ATV Go Kart
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Full-Face Motorcycle Helmet
Helmet
Full-Face Motorcycle Helmet
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