Ktm Sx 125 vs Lem Lb50 R
Side-by-side comparison for used motorcycle buyers
Ktm Sx 125 vs Lem Lb50 R. Ktm Sx 125: ~34 hp @ 11,500 rpm (estimated for modern 2020+ era models) hp, ~98 kg (wet/curb weight, based on 2020+ models) weight, top speed ~110 km/h (estimated; top speed varies significantly based on gearing and track conditions), Motoryk rating 8.5/10. 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.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Individual Reviews
"An uncompromising race tool that rewards preparation and serious skill."
"Decent city runabout if history checks out, avoid mystery examples."
Top 10 Accessories
Picks that work on either bike.









