Technical Presentation 2013 model
Presentation contents Introduction Engines Chassis Electrical Maintenance Summary
Introduction
Introduction 2013 RM-Z450/250 ENGINEERING TARGET 1.Meeting new FIM sound control without sacrificing engine performance. 2.Enhance mid range power to be practical in racing battle. 3.More controllable handling character to be accepted by wider range of riders.
Introduction 2013 RM-Z450 from outside As the above mentioned concept, styling design is unchanged. From outside, it might look same with 2012 model except graphics and plastic parts color. 2012 RM-Z450 2013 RM-Z450
Introduction But under its skin.
Engines
Engines New Crank pin New Cam chain guide New Stator coil New Intake camshaft Lighter Piston & DLC Piston Pin New Connecting Rod Redesigned Transmission Reshaped Shift cam New Oil strainer with magnet Thinner Crankcase reed valve 2013 RM-Z450 Engine changes
Engines New Ignition coil New Exhaust cam shaft New Intake camshaft Lighter Piston & new Piston pin New Crank pin New Stator coil Reshaped Shift cam New Oil strainer with magnet Redesigned Transmission Redesigned Clutch release Thinner Crankcase reed valve 2013 RM-Z250 Engine changes
Engines Reshaped iston head, flatter ombustion chamber Piston (450) Feedback from MotoGP technology - FEM analysis New piston is 13% lighter without sacrificing the rigidity. Shaved down part Shorter piston pin boss 2013 RM-Z450 Reshaped piston skirt Reinforcement Rib added 2012 RM-Z450
Engines Piston (250) Piston of RM-Z250 also received feedback of FEM analysis. New piston is 3% lighter without sacrificing the rigidity. Back side of piston is
13% lighter Piston (450 only) Engines Piston / Piston pin / Connecting rod (450 /250) Increased rigidity DLC coated piston pin (450 only) Faster throttle response Enhanced mid-range power delivery Better combustion efficiency Thicker and shorter piston pin (250 only) Lighter connecting rod (450 only) * RM-Z250 piston is 3 % lighter. Piston pin is changed but no DLC coat. Connecting rod of 250 is unchanged.
Engines Crank pin (250 only) Current model New model Change the shape of passage in crank pin. Capture more sludge, better lubrication Enhance the durability of the bearing at the big end.
Engines Crankcase reed valve / Oil strainer (450 / 250) Thinner crank case reed valve Newly added strong magnet More efficient lubrication Capture more sludge, better lubrication Better throttle response and smoother power delivery Better reliability
Engines Cam chain guide (450 only) Changed material Enhanced abrasion resistance and strength Changed cross section surface (From T to H) Enhanced rigidity Better reliability
Air cleaner (450 / 250) Engines 450 250 Change the shape of air cleaner outlet Increase the volume of the air cleaner outlet tube (60ml) Increase the volume of the air cleaner outlet tube (160ml) Increase bottom-to-mid range power delivery Enhance the throttle response
Engines Back panel of cleaner box (450 only) Now made of carbon fiber mixed material Reduce intake noise
Engines Muffler / Exhaust pipe (450 / 250) Redesigned Muffler structure Extended Exhaust pipe 450 50mm (European spec only) 250 40mm Conventional bolts to fix end cap Meeting new FIM sound control Enhanced low-to-mid range power delivery Easy maintenance of glass wool * Muffler internal changes only applied to European spec.
Engines Camshafts (450 / 250) *250 s camshafts 450 250 Changed Intake cam timing Changed cam profile Changed intake cam s working angle and lift amount Increased intake cam s working angle and lift amount Delayed Exhaust cam timing Smooth characteristic Increased controllability Increased controllability Enhanced low-to-top range power delivery
Engines Transmission / Shift cam (450 / 250) All new Transmission (250) Redesigned Shift cam Redesigned stopper spring Redesigned shift cam stopper plate Redesigned drive shaft New Clutch release (250 only) Changing the sprocket spacer s ring Redesigned Transmission (change the shape of 2nd, 3rd, 4th and 5th gears) (450) *250s transmission More precise gear shift operation Better Shift feel
2013 model Radiator (250 only) Engines 2012 model New by-pass hose connects L & R Revised Hose routing Changed fin pitch Better cooling efficiency = More stable performance Easier for maintenance (Easier to add coolant)
Engines RM-Z450 RM-Z450 (European spec) More power and torque from bottom end to mid range!!
Engines RM-Z250 RM-Z250 (European spec) More power and torque from mid to high rpm range!!
Chassis
Chassis Air cleaner outlet tube Rear suspension Air cleaner box Seat rail Frame Under bracket Muffler Front forks exhaust pipe Linkage bolt Linkage rod 2013 RM-Z450 Chassis changes
Chassis Frame / Seat rail (450 / 250) Reduced the weight by 1% (91g) (450 only) Change the structure of frame head, tank rail, down tube and bridge tube Changed the material of engine mounting bracket from aluminum alloy to steel (250 only) Changed the shape and position of engine mounting bracket (450 only) Optimized rigidity balance More controllable handling character
Front forks (450 / 250) Chassis Separating the spring and damping tasks Reduced friction Increased absorption performance Reduced weight by 2%
Chassis Front forks (450 / 250) Inner tube diameter is increased from 47 mm to 48mm Spring pre-load is now adjustable Optimized stability and absorption Allowing wider range of setting
Chassis Improvements over the existing SFF forks This is second generation SFF forks by SHOWA - SUZUKI joint development Inner tube diameter is increased from 47 mm to 48mm Upsized main cylinder / piston Diameter from 28mm to 30mm Upsized sub piston diameter from 34mm to 35mm Upsized cylinder B diameter from 20mm to 23mm *Separate Function front Fork (SFF) Increased damping force, stronger rigidity while having smooth operation
Front forks (450 / 250) Chassis Improvements over the existing SFF forks Inverted joint rod in spring side Smooth operation in light load High rigidity in heavy load
Chassis Front forks (450 / 250) Improvements over the existing SFF forks Flexure *image picture ( When landing or putting on the brake. ) R L Changed inner parts rigidity Reduced discrepancy of rigidity between Right and Left forks New SFF forks developed for RM-Z 2013 model Enhanced stability Flexure R L Current SFF forks
Chassis Footrests / Brake pedal (450 / 250) The installation part of brake pedal arm is narrowed and bolt is shortened (250 only) Reviewed the shape of return spring Reduced weight Reduced backlash
Chassis Rear shock absorber (450 / 250) 450 / 250 450 Change setting The structure of piston ring and bladder are the same as those of 250 Increased absorption performance More controllable handling
Chassis Rear suspension linkage (450 / 250) 450 / 250 rear suspension linkage mounting bolts 250 Change the link lever ratio Progressive suspension damping characteristic Reshaped and increased from 12mm to 14mm Increased rigidity Prevent them from spinning Easy maintenance Better absorption and smooth operation
Chain roller (450 / 250) Chassis Changed to the polyurethane rubber diameter 40 mm (with bearing) (From the foamed polyurethane diameter 35 mm (without bearing)) Reduced flop of chain when accelerating
Tires (250 only) Chassis Change to the newest Dunlop MX51 series tires Enhanced traction performance
Radiator shroud (450 only) Chassis Change the width of installation part on the back side of fuel tank cover (Radiator shroud) Make the surface flat ( From the side of fuel tank to seat) Easier to hold the machine
Electrical
Electrical ECM / Ignition coil (450 / 250) Changed the sparking characteristics Higher power Optimized setting Higher processing performance Ignition energy is doubled Frequency is 1.6 times Optimized combustion efficiency and enhanced roll-on performance
Electrical Magneto (450 / 250) The generator specifications were reviewed Enhanced generation and charging performance by 8 % Improve ease of starting
Maintenance
FI indicator (optional parts) (450 / 250) Maintenance Self-diagnosis function Engine hour-meter function (from 2013 model) Answerback signal of operating MX-TUNER Surely recognize the operation Track engine-operating time and better manage maintenance intervals
Maintenance Rich-lean couplers (enclosed) (450 / 250) Customer can change fuel setting by just connecting either coupler Relocated rich-lean coupler connector (2013 model, 450 only) Easy access Easy setting
Wire harness (450 only) Electrical Changed locations of connecting couplers (Rich-lean, MX-TUNER and various of service couplers) Easy access Easy maintenance
Maintenance Fuel pump / Fuel pump connector / Maintenance cap & plug (enclosed) (450 / 250) Fuel pump A part of component are resin-made Weight saving by 24g Fuel pump connector Revised locking system More precise and easier operation Maintenance cap Maintenance cap for fuel pump and plug for fuel hose are enclosed Easy maintenance
Maintenance Steering head dust cover (450 / 250) Change to plastic with sealed bearing (from steel caps and rubber seal) Reduced weight Reduced friction Increased water /mud resistant
Maintenance Rear axle / Front fork protector (450 / 250) Add a dust cover Increased water /mud resistant Change the shape of installation part of front forks Add a spacer to the installation part of front brake hose Enhanced durability
Others
Other competitive features RENTHAL Fat bar RK EXCEL Aluminum Rims (from Suzuki, Yamaha and KTM) Wave Disc rotors
Summary 2013 RM-Z 450 & 250 brief overview of changes 1.Meeting new FIM sound control without sacrificing engine performance. 2.Enhance mid range power to be practical in racing battle. 3.More controllable handling character to accept wider range of riders.
Summary Questions?
2013 model