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Release of the 2008 kids "Play Bike" model PW50 with new image defined by two-tone color schemePW80 also to be released with new coloring

June 13, 2007

On June 30, 2007, Yamaha Motor Co., Ltd. (YMC) releases on the Japanese market the 2008 model of its children's play bike "PW50" that mounts an air-cooled 2-stroke single-cylinder engine with automatic transmission and now boasts the same coloring and graphics as the 4-stroke YZ series models. It also features a new two-tone color scheme for the fuel tank and seat.
On September 10, 2007, YMC also releases the "PW80" featuring the same graphics as the 2008 YZ series.

The "PW50" is designed as an entry-level model for children ages 3~6 or so (weight under 25 kg) and offers features including (1) an automatic transmission for easy operation, (2) a lightweight body that is easy to manipulate, (3) shaft drive that requires little or no maintenance and (4) the same type of right-left hand brakes as a bicycle. The "PW80" is designed for children ages 7~10 or so (weight under 40 kg) and offers features including (1) an automatic clutch and 3-speed transmission that lets children enjoy gear changing without the need for clutch operation, (2) spoke wheels front and rear, (3) Monocross suspension and (4) a front fork with aluminum outer tubes. In North America, these models are popular as Christmas presents for children, especially in families where the parents have YZ models and enjoy off-road riding as a family.



Yamaha PW50

Yamaha PW80


Names:

Yamaha PW50, PW80

Release date:

June 30, 2007 (PW50)
Sept. 10, 2007 (PW80)

Coloring:

Deep Purplish Blue Solid E (blue)



Yamaha PW50 Specifications

Overall length x width x height 1,245×575×715mm
Seat height 485mm
Wheelbase 855mm
Minimum ground clearance 105mm
Dry weight 37kg
Engine type Liquid-cooled, 2-stroke, crankcase reed valve
Cylinder arrangement Single cylinder
Displacement 49cm3
Bore x Stroke 40.0×39.2mm
Compression ratio 6.0 : 1
Maximum power 1.8kW (2.5PS) / 5,500r/min
Maximum torque 3.5N•m (0.36kgf•m) / 4,500r/min
Starting system Kick
Lubrication Autolube
Fuel tank capacity 2.0L
Carburetion VM12×1
Ignition system C.D.I.
Primary / Secondary reduction ratio 1.909/6.218
Clutch type Centrifugal automatic
Transmission type Automatic
Gear ratios
Caster / Trail 25°30' / 50mm
Tire size (Front / Rear) 2.50-10 4PR / 2.50-10 4PR
Brake type (Front / Rear) Drum / drum
Suspension type (Front / Rear) Telescopic / unit swing


Yamaha PW50 Feature Map



Yamaha PW80 Specifications

Overall length x width x height 1,540×640×880mm
Seat height 635mm
Wheelbase 1,055mm
Minimum ground clearance 185mm
Dry weight 57kg
Engine type Air cooled, 2-stroke, crankcase reed valve
Cylinder arrangement Single cylinder
Displacement 79cm3
Bore x Stroke 47.0 x 45.6mm
Compression ratio 6.6 : 1
Maximum power 3.5kW (4.8PS) / 5,500r/min
Maximum torque 6.3N•m (0.64kgf•m) / 5,000 r/min
Starting system Kick
Lubrication Autolube
Fuel tank capacity 4.9L
Engine oil volume 0.95L
Carburetion VM15×1
Ignition system C.D.I.
Primary / Secondary reduction ratio 3.143 / 2.133
Clutch type Wet multi-plate
Transmission type Return type 3-speed
Gear ratios 1st: 3.250; 2nd: 1.812; 3rd: 1.294
Caster / Trail 26°00' / 62mm
Tire size (Front / Rear) 2.50-14 4PR / 3.00-12 4PR
Brake type (Front / Rear) Drum / drum
Suspension type (Front / Rear) Telescopic / rear arm (Monocross)


Yamaha PW80 Feature Map



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