The side frames stiffen the base plate.
A servo holder for standard servos and direct linkage of the uprights. The handlebar has its own attachment.
The battery box can accommodate 2 18650 Lipo batteries, a mini switch with 9 x 14mm as well as the ESC and the receiver.
The motor pinion is fixed with a 3mm collar. Boring to 3.2mm.
As a driver I took "Bruce" from 3dsets and scaled it at 140%.
link switch:
Mini SPST Wippschalter, 1 Schaltung, Schwarz Ein/Aus, 9 x 14 mm : Amazon.de: Baumarkt
The author remixed this model.