MX250

AMF Harley-Davidson MX250

General 
Model Designation LettersMX250
Model Years1977-1978 & earlier Prototypes
Vehicle Identificiation7D
Bikes Produced~1000 (not exactly known)
Price1977: $1695 + tax
FrameDouble Downtube
Electrical System12 Volt, Breakerless Ignition
Top Speed
Chassis
Front suspension36 mm diameter, 210 cc capacity, Telescopic oil dampened 229mm (9 inches) travel
Rear suspensionTwin Schocks, 6 inches travel, Wheel 9 inches travel
Front wheel tire3.00 x 21, knobby type
Rear wheel tire4.40 x 18, knobby type
Front brakeDrum, internal expanding, single leading shoe type, i.d. 140 mm x 25 mm
Rear brakeDrum, internal expanding, single leading shoe type, i.d. 140 mm x 25 mm
Rims (Front & Rear)Akront, shoulderless light alloy, 36 spokes
Tire pressure (Front)10 psi
Tire pressure (Rear)10 psi
Dimensions & Weight
Overall lengthOverall length: 83.6 in. (212,5 cm)
Handlebar width34.2 in. (87 cm)
Ground clearance12 in. (30.5 cm)
Wheelbase57.3 in. (145.5 cm)
Seats1 person
Saddle Height
Fuel tank8.33 litres (2.2 US Gallons)
Engine
Type2 cycle, single cylinder, 242.6cc, air cooled
Bore72 mm (2.83 inches)
Stroke59.6 mm (2.35 inches)
Piston displacement242.6 cc
Gearshift pattern1 down - 4 up
Compression ratio11.8:1
Lubrication systemFuel and oil mixture 20:1
Starter systemPrimary kick
CarburetorDell'Orto PHB E 38
Clutchwet, multi plate
Gear ratios1st: 14/28, 2nd: 18/28, 3rd: 21/26, 4th 21/21, 5th: 23/19
Spark Plug

The MX250 is a competition model and therefore not street legal.

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