Dirt and Trail July 2020

– New gearbox and selector
mechanism with new ratios.
Gearbox assembly is now lighter
by 600 grams (250/300SE)
– Total engine weight reduction of
1.2kg over last year (250/300SE)
– New lightened secondary
drive shaft + gearbox output
standardization (125-250-300 2T)
– New cylinder head with lower
compression (250/300SE)
– Updated ignition maps and new
ignition coil control unit. Two
selectable maps result in 5.5bhp
power difference.
2021 Four-Stroke Updates
and Highlights
– Connecting rod bottom-end
bearing has been changed to a
plain bearing to improve engine
life (250/300)
– Tilt sensor (motorcycle engine
shuts off in the event of a fall)
– New connecting rod, which
reduces low-speed stalling
– Revised machining of the engine
cases: Optimized for the new
connecting rod, which reduces
low-speed stalling. It also reduces
the overheating of the engine
oil. The lubricant has better
circulation inside the engine.
(250/300)
– The balancer is the same as
2020 but with a smaller axis
(250/300)
– Compression lowered (250/300)
– New intake and exhaust
camshaft profile (250/300)
– Sprockets of the anti-vibration
balancer lightened (450/500)
– Starter inner pinion has been
lightened (450/500)
– Oil pump gear has been
lightened (450/500)
– New 2021 Racing graphics kit
Inmold
– New Brake Spring: Larger
diameter spring to improve pedal
return
For more information
on the Sherco line visit
shercosouthafrica.co.za
24 DIRT & TRAIL MAGAZINE JULY 2020