Sherco Sef 300 Racing vs Gas Gas Ec 300
Side-by-side comparison for used motorcycle buyers
Sherco Sef 300 Racing vs Gas Gas Ec 300. Sherco Sef 300 Racing: ~38 hp @ 9,000 rpm (estimated) hp, ~108 kg (wet/curb weight) weight, top speed ~145 km/h (estimated; note: top speed is rarely a priority metric for enduro machines), Motoryk rating 7.8/10. Gas Gas Ec 300: ~48–52 hp @ 8,500 rpm (estimated; manufacturer does not officially publish output figures) hp, 98 kg (wet/curb weight, approximate for 2021–2024 models) weight, top speed ~130 km/h (estimated; not optimized for top speed — note: off-road focused), Motoryk rating 8.0/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Individual Reviews
"Brilliant underdog enduro bike — but only buy a well-documented example."
"A ferocious enduro tool that rewards experienced, disciplined ownership only."
Top 10 Accessories
Picks that work on either bike.









