Dirt Bike Magazine - September 2013

Specifications:

Engine............ 4-stroke, liquid-cooled, Bore x stroke........... 77.0mm ( 3.03”) x Displacement........249 cc ( 15.2 cu. in)

Compression ratio..................... 13.5:1 Fuel system ................... Fuel injection Starter system.................Primary kick Lubrication system ..... Semi-dry sump Idle speed..................2100 ± 50 r/min

Chassis:

Overall length .......... 2170mm ( 85. 4”)

Overall width ............. 830mm ( 32. 7”)

Overall height .......... 1270mm ( 50.0”) Wheelbase................ 1475mm ( 58.1”) Ground clearance........345mm ( 13. 6”) Seat height ................. 955mm ( 37. 6”) Curb mass.............. 106. 5 kg. (235 lb.) Clutch ........................... Wet multi disc Transmission 5-speed constant mesh Final reduction ratio ....... 3.769 (49/13) Drive chain... DID520DMA4, 114 links

2014 SUZUKI RM-Z250

– The piston and piston pin were developed using Finite Element Method (FEM) analysis. The new piston is 3 percent lighter without any compromise to strength or rigidity.

– The intake cam profile and the exhaust cam timing were changed to adjust the overall output characteristics. This establishes both high output and controllability.

–Like the 450, the muffler body uses conventional bolts in the end cap instead of rivets to simplify replacement of the glass wool packing in the muffler.

–Showa’s Separate Function Fork (SFF) separates the spring and damping tasks. The right leg holds the spring, while the left leg incorporates the cartridge assembly to manage damping. This results in reduced friction, increased absorption performance and weight savings.

– Two couplers are included for quickly adjusting the fuel setting to suit the riding conditions. One is for a richer fuel setting than the stock setting, and the other is for a leaner fuel setting.

Suspension:

Front........... Showa SSF, coil spring, Rear................ Link type, coil spring,

oil damped

Wheel travel:

Front..........................310mm ( 12.2”)

Rear .......................... 310mm ( 12.2”)

Brakes:

Front................................ Disc brake Front....... 80/100-21 51M, tube type Rear........ 100/90-19 57M, tube type Caster ...................................... 29’ 20” Trail.............................130 mm ( 5.1 in) Steering angle ............ 45° (right & left) Ignition type...Electronic ignition (CDI) Ignition timing.............. 12° B. T.D.C. @ 2100 r/min Spark plug................NGK CR8EIB- 10 Fuel-tank capacity, incl. reserve . 6. 5 L (1.7 gal.)