TWO-CENTS
INSERTS required *only if* an alloy wheel does Not already appear realistic and period correct. CB Design and similar wheels, with Holes only (i.e. spokes r OK, and smoothies with Lug Nuts) are not allowed (i.e. if they are designed for inserts, inserts are required).
TIRES 6, 8, 9mm width – basically the OEM (out of box) size or very close and within the wheel wells. ?? Do the 914s have 10mm Width tires?
MOTORS Need to be Racer specific so we should be sending Marc the spec for the motor:
* CAN/TYPE: FF (‘F1’ Slimcan; FF-050); S-Can (Mabuchi style “Short-Can”; FC-130); Long-Can (a.k.a. ‘boxers’; FK-180)
* SHAFT SPEED: xx,000 rpms (18,000 or less, regardless what your original motor was)
Remember: Most FF motors have a 1.5mm shaft-Diameter (OD) and hence cannot use the same Slot.IT and NSR pinions used for the MX16 Orange-end-bell and other S-can and long-can motors. 1.5mm ID Pinions are available but can be tricky to find. https://slotcarcorner.com/collections/pinion-gears-for-1-5mm-motor-shaft
Adapter shafts are also available, but at this moment I do not have a link to a vendor.
"... get on your bad motor scooter and ride!"
Sammy with Montrose