Kawasaki KDX 80 cc 1988-1990

Overview

The Kawasaki KDX 80 cc is a motocross bike that was produced from 1988 to 1990. It was powered by a 79 cc (4.8 cu in) single-cylinder two-stroke engine and featured a 5-speed transmission. The KDX 80 was designed for young riders and was a popular choice for motocross racing.

Engine

• Type: Single-cylinder, two-stroke
• Displacement: 79 cc (4.8 cu in)
• Bore: 49 mm (1.9 in)
• Stroke: 45 mm (1.8 in)
• Compression ratio: 12.0:1
• Power: 11.5 hp (8.6 kW) @ 10,500 rpm
• Torque: 6.8 ft·lb (9.2 N·m) @ 9,000 rpm

Transmission

• Type: 5-speed manual
• Gear ratios:
1. 1st: 2.438
2. 2nd: 1.786
3. 3rd: 1.346
4. 4th: 1.053
5. 5th: 0.833

Suspension

• Front: 35 mm telescopic forks with 220 mm (8.7 in) of travel
• Rear: Single shock with 210 mm (8.3 in) of travel

Brakes

• Front: Single 220 mm (8.7 in) disc
• Rear: Single 130 mm (5.1 in) drum

Dimensions

• Length: 1,970 mm (77.6 in)
• Width: 780 mm (30.7 in)
• Height: 1,160 mm (45.7 in)
• Seat height: 840 mm (33.1 in)
• Ground clearance: 260 mm (10.2 in)
• Wheelbase: 1,340 mm (52.8 in)
• Dry weight: 85 kg (187 lb)

Performance

• Top speed: 105 km/h (65 mph)
• 0-60 mph: 5.5 seconds
• 1/4 mile: 14.5 seconds