Cart 0

Bicycle Assembly A3

Bike Assembly A3 (Shimano Nexus 3 Speed)



Handlebar:  Make sure the stem is securely fastened. After installing the handlebar twist the handlebars while holding the front wheel. The stem and handlebars must not move in the steering tube.


Saddle: The seat post must be secure in the seat tube. The correct height of the seat is your choice.  We recommend to set the seat at so that your leg will be slightly bent when fully extended in the down stroke.  Never insert the seat tube over the minimum insertion line.


Wheels and Tires:

Inflate your tires properly at the recommended pressure. (see tire specifications: P.S.I). 

Attach the wheels securely and make sure the brakes are working properly.  Align both wheels correcting for wobbling; (check the space between the rim and brake pads or the tire and frame). Check the chain tension if too loose adjust the chain tensioner in the back of the rear dropouts alternating left and right making sure the correct wheel alignment is kept.  The acorn nut is in the left axel the regular hex nut is used in the right.  Tighten the axle nuts a little at a time alternating between each one until the wheel is firmly fixed to the frame.  The chain should have about 1/2 cm of movement up and down.



Shimano Nexus 3 installation: (Shimano Nexus 3 Parts List)

Insert the push rod in the Shimano Nexus axel and the bell crank unit. Tighten the bell crank fixing bolt. Shift to the second gear in the grip shifter and adjust the cables to line-up between the lines in the bell crank.  Tighten all the retaining lock bolts so the cable will not move.



Pedals are marked with “R” for the right side, “L” for the left side.  Remember the pedals have counterclockwise threads.



Check-list before riding:


* Are you wearing a helmet and appropriate equipment and clothing?

* Check wheels, make sure they are securely installed in the frame.

* Tires are inflated?

* Brakes are working properly?

* Check for any crack, damages and loose parts.

* Seat height matches your size?

* Handle bars and front wheels moving together?


For further information please send an email to