Transmission Adjustment - RIEJU NUUK URBAN Owner's Manual

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Maintenance

Transmission adjustment

The transmission for the electric motorbike consists of a double stage formed by a belt and a chain, which are joined by an
intermediate pulley. The belt provides smooth operation and protects the motor from vibration, while the chain provides
robustness to operation and facilitates maintenance processes.
In order for the transmission to work properly, both the belt and the chain must be at the proper tension, first tensioning the
transmission belt and the chain in the second place. The maintenance of the transmission belt must always be carried out by an
authorised service technician, who will have the tools and the necessary knowledge to do it correctly.
To tighten the chain, it must be actuated on the tensioners located on the rear wheel axle. The rear axle fixing nut must be loosened
and the two tensioners should be moved so that the wheel moves backwards until the chain tension is correct. With the chain at the
proper tension, it may move between 35 and 45 mm vertically in the central part of the chain.
35-45 mm
45