RIEJU MRT 50, Owner'S Manual

Page: 88 / 162

MOTORCYCLE DESCRIPTION
This motorcycle has a 49.7cc single cylinder; liquid cooled two stroke MINARELLI motor. With a piston
diameter of 40,3 mm and it has a 39 mm bore.
The motor has an electronic Ignition system, CDI and a high-tension coil. The Generator provides 85
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 MRT and MRT SM 50 models consists of a hydraulic fork with bars which have a
diameter of 37 mm.
In PRO models with variable transmission, it consists of an inverted hydraulic fork with 40 mm-bars.
In MRT and MRT SM 50 models, the rear suspension consists of a highly resistant and comfortable
hydraulic shock absorber.
The rear suspension in PRO models with variable transmission consists of a shock absorber anchored to
a progressive articulated rod system (Progressive Racing System - PRS) which provides great operational
smoothness PRO models with variable transmission also incorporate a gas shock absorber with spring
preload adjustment.
The front disc brake is made of stainless steel and has a diameter of 220 mm and 180 mm with radial
calipers in MRT50 and MRT SM 50 models.
PRO models with variable transmission are equipped with 260 mm-front discs and 220 mm-rear discs with
a double-piston radial caliper.
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