RIEJU marathon 125 Owner's Manual page 84

MORTORBIKE DESCRIPTION
This mortorbike has a 124 cc single cylinder; liquid cooled four stroke motor. With a piston diameter
of 52 mm and it has a 58,6 mm bore.
The motor has an electronic Ignition system, CDI and a high-tension coil. The Generator provides 120
Watts and 12 volts via a regulator to supply power for the bike electrics.
Engine power is delivered to final drive chain via a Multiple metal clutch with constant pressure springs,
submerged in an oil bath.
The engine is anchored to a highly resistant perimeter type chassis, with tapered steering bearings.
The front suspension in the Marathon 125 PRO consists of a hydraulic fork with bars which have a diame-
ter of 40 mm. The rear suspension with variable transmission consists of a shock absorber anchored to a
progressive articulated rod system (Progressive Racing System - PRS) which provides great operational smo-
othness with variable transmission also incorporate a gas shock absorber with spring preload adjustment.
In the versión Maratón 125 cc. complete fork consist hydraulic fork with ø 37 mm., with hydraulic rear
shockabsorber the tilt.
The front disc brake is made of stainless steel and has a diameter of 300 mm and 200 mm with radial
calipers. At models Marathon 125 cc. The front disc brake is 260 mm. and rear is ø 180 mm.
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