Comparison of Yamaha Dhoom YD-70 vs. Unique UD 100

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Engine Type	Air Cooled, 4-Stroke, SOHC	4-Stroke Single Cylinder Air Cooled
Displacement	70cc cc	100 cc
Bore & Stroke	N/A -	51.0 - 55.2
Compression Ratio	01:09.1:1	9.5:1
Clutch	N/A	Wet Type Multi-Plate
Transmission	4-Speed Transmission System-speed	4-speed

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Yamaha Dhoom YD-70 vs. Unique UD 100