Rieju Marathon 125: history, specs, pictures

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Rieju Marathon 125
Manufacturer
Also called Marathon Pro125SM, Marathon Pro 125 SM, Marathon 125 PRO, Marathon 125 SM, Marathon 125 Competizione, Marathon Pro125, Marathon Pro 125, Marathon 125 Pro Competizione, Marathon Supermotard 125, Marathon 125 Pro SM, Marathon 125 AC, Marathon 125 AC Enduro, Marathon 125 SM Pro, Marathon 125 Pro
Production 2010 - 2017
Engine
single cylinder, four-stroke
Bore / Stroke 56.4mm x 49.5mm
Fuel System carburetor. deni p2-26
Ignition race spec cdi with selectable power mapping
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: wet mulitidisks
Suspension Front: fork of ø37mm.
Rear: mono-shock shock absorber
Brakes Front: single disc
Rear: single disc
Front Tire 90/90-21
Rear Tire 120/80-18
Wheelbase 55.31 inches (1405 mm)
Length 84.65 inches (2150 mm)
Width 31.5 inches (800 mm)
Height 45.87 inches (1165 mm)
Seat Height 35.04 inches (890 mm)
Weight 187.39 pounds (85.0 Kg) (dry),
Fuel Capacity 1.66 Gallon (6.30 Liters)
Manuals Service Manual


The Rieju Marathon 125 AC Enduro was a single cylinder, four-stroke standard produced by Rieju between 2010 and 2017.

Engine[edit | edit source]

The engine was a air cooled single cylinder, four-stroke. A 56.4mm bore x 49.5mm stroke result in a displacement of just 125.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the wet mulitidisks.

Chassis[edit | edit source]

It came with a 90/90-21 front tire and a 120/80-18 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a fork of ø37mm. while the rear was equipped with a mono-shock shock absorber. The Marathon 125 AC Enduro was fitted with a 1.66 Gallon (6.30 Liters) fuel tank. The bike weighed just 187.39 pounds (85.0 Kg). The wheelbase was 55.31 inches (1405 mm) long.