JR Sprint TECHNICAL SPECIFICATIONS
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Type
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Rotax FR 125 TaG, Single Cylinder, Water cooled, carbureted 2-Stroke
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Max Output
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28 Hp @ 11,500 rpm
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Max Torque
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15.48 ft-lb@8,750 rpm
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Displacement
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124.8 cc
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Bore & Stroke
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54.0 x 54.5mm
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Compression Ratio
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14.8:1
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Lubrication
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Premium 2-Stroke Oil
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Weight
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26.5 lb
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Ignition
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Denso Digital battery ignition
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Fuel
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98 Octane Unleaded
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Drive Train
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219 Chain
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Type
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32mm tube framed SKM Trackmagic
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Safety Standards
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CIK 08 Homologation
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Wheels
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Douglas Aluminum
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Tires
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Yokohama
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Brakes
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Vented, crossed drilled rear rotor, 4-piston caliper
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Seat
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Custom Fit Fiberglass
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Bodywork
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New Age
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Wheelbase
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105 mm
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Front Track
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118 mm
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Rear Track
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140 mm
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Overall Weight
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187 lb
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© Jim Russell USA Racing Drivers School 2010
