H Yamaha ανακοίνωσε τα δυο ολοκαίνουργια μοντέλα της για τους φίλους των 250 κυβικών το WR 250R με χαρακτήρα on-off απόγονο του TTR και το WR 250X με έμφαση το supermoto και την πόλη. Οι μοτοσυκλέτες φέρουν καλούδια για όλους όπως ψεκασμό, μίζα, κινητήρες όπως των αγωνιστικών YZ/WR, αλουμινένιο πλαίσιο κ.α.

WR250R

   
   

WR250R Technical Highlights
Engine
• Newly designed 250cc liquid-cooled 4-stroke DOHC 4-valve
• Large lightweight titanium intake valves
• High-lift cams with extra-hard WPC* surface finish (*Wonder Process Craft)
• Bore x stroke 77.0mm x 53.6mm (Same as YZ/WR250F)
• High compression ratio of 11.8:1
• Pent-roof combustion chamber
• Maximum power developed @ 10,000rpm
• Electric start (no kick start)
• Fuel injection with long nozzle 12-hole injector
• Downdraft-type straight intake with air control valve
• Lightweight forged piston
• Ceramic composite plated cylinder
• Compact 3-axis layout
• Weight-saving wet-sump lubrication system
• Direct ignition coil
• Compact and lightweight rare earth AC magneto
• Smooth-action 13 plate clutch
• 6-speed transmission with shower-type lubrication
• EXUP exhaust and compact 3-stage muffler
• Air induction system and honeycomb catalyser

Chassis
• 3-section semi-double cradle frame
• Frame uses cast aluminium, forged aluminium and steel pipe
• Lightweight aluminium swinging arm with asymmetrical cross section
• 46mm upside down forks with 270mm travel
• Link-type rear suspension with 270mm travel
• 300mm ground clearance
• Upright seating position offering optimum rider manoeuvrability
• Tall 930mm seat height for effective off road performance
• Multi-function digital instrumentation
• Lightweight bodywork with excellent mass concentration
• Wave type 250mm front disc and 230mm rear disc
• LED tail light


WR250X

 

WR250X Technical Highlights

• 17-inch front and rear wheels
• Radial tyres
• Stiffer front and rear suspension springs, revised damping settings
• Larger diameter 298mm front disc brake
• Lower 895mm seat height
• Revised secondary reduction ratio (WR250R= 43/13; WR250X= 42/13)
• Compact and aggressively-styled supermoto bodywork