1/28 Formula 1 (28SRA) Rules

GL Racing GLF-1, G-Force Formula, PNR 3.0F1, MWX R1F1, Atomic SF-F1 conversion, or Reflex FX28. Wheelbase 112–116mm only.

Any 2500Kv motor, sensored or sensorless — max 15mm can, max 2800Kv. No aftermarket rotors or modifications.

Any pinion/spur — markings required, pre-event teched/painted. Standard 12T pinion / 53T spur unless specified.

Any 1/28 production wheels — front 11mm, rear 14mm wide, diameter 19–20mm. Tires max 25.5mm mounted. NO traction compound, homemade tires, foam, silicone, urethane, ethyl carbamate, or inserts. Tire warmers allowed.

2-cell LiPo or paralleled 1-cells, 8.4V max. One additional battery for the transponder.

Any manufacturer; blinky mode required. Receivers with built-in gyro, or separate gyros, prohibited.

Lexan F1 bodies only (GLF-1, PN-F1, MWX, G-Force). Aftermarket F1-style wings allowed; no bearings in front wings.

Any aftermarket or publicly available 3D-printed parts allowed; tungsten/brass weight additions permitted. Prototype parts prohibited — parts must be publicly announced 45 days prior, nationally purchasable 45 days prior, and 3D files shared before the event. Minimum weight 140 g.