- Please check position of gear shift buttons first. If they are in pushed position, there must be some play underneath the button. If there is no play, the shifting shaft can't reach its end position and clutch can't engage correctly.

- If you use easy-shift kickplates, please see I.2. To check, if the kickplates are the reason for the malfunction, please remove them (by unscrewing the pedals).

- If you changed a crankarm and you can't shift into both gears afterwards, you may have forgotten to use the small tube, that protects the shifting shaft while the crankarm is pulled off the axle.
In this case, you have disengaged the shifting shaft from the clutch, which can't be undone without disassembling the drive completely!