Dirt and Trail August 2019

RobRidefast

LANDLINES: 011 465 4591 / 011 465 4212 / 011 465 5351 / 011 467 0737

Shop 3 & 4, Showroom on Leslie, Corner William Nicol & Leslie, Fourways

World Superbike machine of Jonathan Rea,

the new engine has a higher rev ceiling and

more aggressive camshaft timing whilst

reducing overall valve train weight Kawasaki

says.

Boasting an increase in peak power of

approximately 2.4 kW (3.2bhp/3.3PS), and

performance focused on the high-rpm range.

A downdraft-style intake routing increases

the intake air’s approach angle into the

cylinder from 29.5º to 32.5º, improving

cylinder-filling efficiency and contributing to

increased engine power.

2020 Kawasaki KX250 in a nutshell: damping setting and increased riding

• Revised bore and stroke for high rpm comfort Kawasaki claims. The high and low

focused engine character

speed damping, compression and preload

• New finger-follower valve train designed by adjustable forks have a stiffer spring rate

Kawasaki’s World Superbike engineers from 9.4 N/mm to 10.0 N/mm.

• New slim aluminium perimeter frame with The new 250 also uses a new KYB shock

revised rigidity

which has a stiffer spring rate as well, up

• New front brake pads, new rear brake disc from 52 N/mm to 54 N/mm.

and rear master cylinder

• Adjustable handlebar and footpeg

250 engine gets the attention:

technology

Straighter intake ports increase intake

• Factory-inspired green number plates, efficiency and performance while a stronger

black rims and coloured accents

cam chain in the cylinder head is used to

help reliability and cope with the increased

Showa SFF out, KYB springs in.

loads from the more aggressive cams and

The KYB 48mm coil-spring forks are back higher rev limit.

in the Kawasaki 250 F with new inner tubes A larger throttle body and 60mm shorter

which allow 25mm damping pistons

intake funnel both aim at strong power higher

allowing the same damping

up the rev-range.

force with a lower internal

The 2020 KX250 engine has a 1mm

pressure and in turn

larger bore and 1.4mm less stroke

that means

which allows for larger valves and the

a firmer

shorter stroke to help boost high-rpm

performance Kawasaki says.

1mm larger intake valves (32mm) also

have 1mm higher lift, while the exhaust

valves jump 1.5mm to 26.5mm and

have 0.4mm more lift.

Featuring finger follower valve actuation,

most notably adopted by the Ninja ZX-10RR

Frame game:

Main chassis changes are kept to a

minimum but they include a lower

front engine mount (now stud bolts

not a through-bolt) to improve overall

frame rigidity and work with the new

shock Kawasaki claims.

The rear brake disc jumps 10mm to

250mm, and the rear brake master

cylinder and brake line have been

revised to reduce weight too.

The 2020 KX250 now uses the same

front brake pads as the 2019 KX450,

which are designed for a more

linear brake force application and

better control.

At dealers soon.

DIRT & TRAIL MAGAZINE AUGUST 2019 5 9

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