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1225-C
Ret-ro rules in-line, all-wire frame (no brass pans); with “damper” main rails; separate torsional center-guide section attached to motor box built to be as narrow as possible using only four side-by-side pieces of 0.047” wire, with torsional flanking wire-pans made of 0.039” wire outer framing wire with 0.032" wire internal structure (wire version of “double-V” cut); separate left-right torsional rails attached to motor box for front axle uprights; torsional inner side pans (0.039” wire outer framing wire with 0.032" wire internal structure) and perimeter wire outer side “pans”.
Subsequently refitted with variable spring-wire tension system between center-guide section / front-axle uprights for "chassis tuning".
This is all-wire framed sister chassis to 1310-C.