Engine type

Liquid-cooled, 2-stroke Single with KIPS

Displacement

99 cm³ (84 cm³ for KX85A/B)

Bore x stroke

52.5 x 45.8 mm (48.5 x 45.8 mm for KX85A/B)

Compression ratio

Low Speed: 9.6:1 (10.0:1 for KX85A/B) High speed: 8.8:1 (9.2:1 for KX85A/B)

Valve system

2-petal carbon-fibre piston reed valve

Fuel system

Carburettor: Keihin PWK 28

Ignition

Digital CDI

Starting System

Primary kick

Maximum power

21.5 kW {29.2 PS} / 11,500 rpm (KX100D)

Transmission

6-speed, return

Maximum torque

18.4 N·m {1.88 kgf·m} / 10,500 rpm (KX100D)

Brakes, front

Single 220 mm disc, dual-piston

Suspension, front

36 mm leading-axle upside-down telescopic fork with 18-way compression damping

Suspension, rear

Bottom-Link Uni-Trak with adjustable preload, 4-way compression and 16-way rebound damping

Brakes, rear

Single 184 mm disc, single-piston

L x W x H

1,910 mm x 735 mm x 1,105 mm

Frame type

Perimeter, high-tensile steel

Trail

27° / 103 mm

Wheelbase

1,255 mm

Wheel travel front

275 mm

Fuel capacity

5.5 litres

Seat height

840 mm

Wheel travel rear

275 mm

Dry weight

65 kg

Tyre, front

70/100-19 42M (70/100-17 40M for KX85A)

Tyre, rear

70/100-19 42M (70/100-17 40M for KX85A)

Steering angle, left / right

45°/45°