NO - Quest eBikes come with all electrical components fully assembled and calibrated. All mechanical assembly has also been completed with the exception of the 3 final steps. Put simply this means the only assembly required after taking your new eBike out of the box is aligning the handlebar, placing the front wheel on the fork and attaching the pedals. If you have ever owned any bicycle (electric assist or fully mechanical) these steps will be simple to complete. A full assembly video at https://vimeo.com/ridequest/assembly-hub is available for visual reference, while a user manual and the tools required to complete assembly are provided with the eBike. (If you feel the need for professional assistance any local bicycle store should be capable of completing the assembly regardless of prior experience with electric bicycles. The mechanical elements of the Quest eBike function in exactly the same way as any fully mechanical bicycle so these final assembly steps will have been repeated hundreds of times by any good bicycle mechanic.)