Designed for the MX2 Class and for all riders looking for a 2-stroke with explosive character. Its engine is optimised for maximum performance, from acceleration at the starting gate to the most exciting corner exits.
The RX 250 2T engine is not an adjustment, but an entirely new design, developed with a single focus: competition in the MX2 Class. Every single element of the thermal unit has been designed for this engine; head, cylinder, crankshaft, crankcase, and so on. Nothing has been left to chance. The result is explosive power delivery and exceptional thrust at high revs, giving you the maximum advantage anytime, anywhere.
CHASSIS
Frame
Molybdenum steel with double cradle split above
the exhaust port
Wheelbase
1482 mm
Max length
2177 mm
Max width
830 mm
Max height
1260 mm
Seat height
945 mm
Ground clearance
340 mm
Footrest height
422 mm
Dry weight
100 kg (front 48 kg; rear 52 kg))
Fuel tank capacity
7,0 l
Cooling system capacity
1,3 l
Front suspension
Kayaba Hydraulic USD closecartridge fork with ø 48 mm
shaft
Rear suspension
Kayaba Monoshock with progressive compound lever
Shock absorber stroke
133 mm
Front wheel travel
305 mm
Rear wheel travel
300 mm
Front brake
Wave disc ø260 mm and double-piston floating caliper
Rear brake
Wave disc ø240 mm and single-piston floating caliper
Front rim
21 x 1,6 – 36 holes
Rear rim
19 x 2,15 – 36 holes
Front tyre
80/100 – 21
Rear tyre
110/90 – 19
engine
Type
Single cylinder, 2-stroke, liquid-cooled
Bore
66,4 mm
Stroke
72 mm
Displacement
249,3 cc
Compression ratio
14,6:1
Exhaust Valve
BPV system
Starter
Electric starter
Ignition
AC Kokusan – digital CDI
Spark plug
NGK LKAR 8A-9
Induction system
Induction reed
Lubrication
Mixing
Carburettor
Keihin PWK 38
Clutch
Wet multi-disc clutch
Primary drive
Z. 27/72
Transmission
5 gears
Final transmission
Chain
Engine oil
SAE 10W/50
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