5
3
regulating screw
The chain must be at the correct tightness. If too tight, the bicycle will be difficult to
pedal. If too loose, the chain can come off the sprockets.
Adjust the tightness of the chain as follows:
A. Turn the product downside up. Remove the six screws on the bottom of the product with
a screwdriver.
B. Press the two buckles on the side of the product, Lift up the chain cover.
C. Loosen the four fixed screws and adjust the screws according to the tightness of the
chain.
Chain Adjustment
6
4
2
8