Lem Lb50 R vs Yamaha Yz450f — which has more power?

Lem Lb50 R produces Estimated 6–8 hp @ 8,000–9,000 rpm (note: estimate; exact figures not widely published); Yamaha Yz450f produces Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end). Yamaha Yz450f wins by 54 hp.

Lem Lb50 R vs Yamaha Yz450f — which is faster?

Top speed: Lem Lb50 R Estimated 65–75 km/h (note: estimate; varies significantly based on gearing and track conditions), Yamaha Yz450f Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure). Yamaha Yz450f is the faster of the two.

Lem Lb50 R vs Yamaha Yz450f — which is lighter?

Weight: Lem Lb50 R Estimated 45–55 kg (note: estimate for wet/curb weight; LEM bikes are known for very lightweight construction), Yamaha Yz450f 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier). Lem Lb50 R is lighter by 65 kg.

Lem Lb50 R vs Yamaha Yz450f — which is more reliable?

Motoryk rates Lem Lb50 R 6.0/10 and Yamaha Yz450f 8.5/10. Yamaha Yz450f scores higher on the overall verdict. Lem Lb50 R caveat: You need reliability beyond city limits. Yamaha Yz450f caveat: Beginners or riders skipping routine maintenance schedules.

Lem Lb50 R vs Yamaha Yz450f — which is better for beginners?

Lem Lb50 R is the friendlier choice for a first bike — 6 hp is manageable. The Yamaha Yz450f is better held for a second bike.

Lem Lb50 R vs Yamaha Yz450f — which should I commute on daily?

Both can commute, but lighter weight and gentler power win in traffic. Lem Lb50 R: 45 kg, 6 hp. Yamaha Yz450f: 110 kg, 60 hp.

Lem Lb50 R vs Yamaha Yz450f

Q: Lem Lb50 R vs Yamaha Yz450f — which is more fuel-efficient?

Fuel use: Lem Lb50 R Estimated 2.0–2.5 L/100km (note: estimate, as official figures are not widely published for this competition model), Yamaha Yz450f Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike). Real-world economy varies by rider weight, traffic, and how hard the throttle gets twisted.

Side-by-side comparison for used motorcycle buyers

Lem Lb50 R vs Yamaha Yz450f. Lem Lb50 R: Estimated 6–8 hp @ 8,000–9,000 rpm (note: estimate; exact figures not widely published) hp, Estimated 45–55 kg (note: estimate for wet/curb weight; LEM bikes are known for very lightweight construction) weight, top speed Estimated 65–75 km/h (note: estimate; varies significantly based on gearing and track conditions), Motoryk rating 6.0/10. Yamaha Yz450f: Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end) hp, 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier) weight, top speed Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), Motoryk rating 8.5/10.

Lem Lb50 R

Yamaha Yz450f

Performance at a Glance

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

Lem Lb50 R Yamaha Yz450f

Horsepower (hp)

6 hp

60 hp

Torque (Nm)

6 Nm

53 Nm

Top Speed (km/h)

65 km/h

145 km/h

Weight (kg) — lower is better

45 kg

110 kg

Type

Motocross

Horsepower

Estimated 6–8 hp @ 8,000–9,000 rpm (note: estimate; exact figures not widely published)

Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end)

Torque

Estimated 6–7 Nm @ 7,000 rpm (note: estimate; official figures not widely available)

Approximately 53–55 Nm @ 8,000 rpm (estimate; Yamaha does not officially publish torque figures for this model)

Top Speed

Estimated 65–75 km/h (note: estimate; varies significantly based on gearing and track conditions)

Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure)

Weight

Estimated 45–55 kg (note: estimate for wet/curb weight; LEM bikes are known for very lightweight construction)

110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier)

Fuel

Estimated 2.0–2.5 L/100km (note: estimate, as official figures are not widely published for this competition model)

Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike)

Fairing