Sherco's small-bore fuel-injected four-stroke enduro bikes, sold as SEF-R and later SEF Racing/Factory.
2009 – present · 249cc · 4-stroke
New frame and subframe across the enduro range (revised down-tube/steering geometry per displacement), new side-access airbox with battery and relays inside it, lighter cooling system, new steering head bearings. The 250/300 also get a new head revving about 300 rpm higher and closer 3rd–5th ratios.
2010 – present · 304cc · 4-stroke
New frame and subframe across the enduro range (revised down-tube/steering geometry per displacement), new side-access airbox with battery and relays inside it, lighter cooling system, new steering head bearings. The 250/300 also get a new head revving about 300 rpm higher and closer 3rd–5th ratios.
Fuel-injected DOHC 250 four-stroke in the steel semi-perimeter frame, developed from the 2012 new-generation 250/300 engines; 2017 revised geometry, 2021 lighter crank and cases, and 2024 a higher-revving engine update.
New-generation 250 engine, sold as SE 250i and SE 250i R (Racing).
New fuel-injected DOHC 250 four-stroke with electric start (SE 2.5i-F) in a new lighter frame.
Fuel-injected DOHC 300 four-stroke in the steel semi-perimeter frame, developed from the 2012 new-generation 250/300 engines; 2017 revised geometry, 2021 lighter crank and cases, and 2024 a higher-revving engine update.
Redesigned engine (new cylinder, crank and cams), sold as SE 300i and SE 300i R (Racing).
New for 2010: the 250 engine bored to 290cc.