Iowa Fast Track RC rules
Mod 4WD Mini Truggy Rules
v1Class RulesMini TruggyEffective Aug 16, 2026· Updated 2 months ago
Summary of recent changes
Published (2025 Iowa Fastrack classes).
Spec sheet
Governing
- Notes
- 6-cell NiMH or 2S hard-case LiPo
Motor & ESC
- Motor type
- Modified brushless
- Motor turn
- Modified / open
- Spec motor
- Any 540/550 brushless (550/4-pole common)
Battery & power
- Battery chemistry
- Any
Tires
- Spec tire
- 2.2 stadium truck or 2.2/3.0 short course; 1/8 buggy tires not allowed
Weight & body
- Body
- Any truck body for the class
Chassis & Suspension
- Chassis
- Any 1/10 off-road 4WD truggy (e.g. Tekno, XRAY)
1.Who it’s for
Intermediate to expert racers — miniature 4WD truggies with lots of horsepower.
2.Chassis
Any off-road 4WD 1/10-scale truggy (e.g. Tekno or XRAY).
3.Motor
Any 540- or 550-based brushless motor; 550-size or 4-pole motors are common.
4.Batteries
6-cell NiMH or 2-cell hard-case LiPo.
5.Tires & body
2.2 stadium truck or 2.2/3.0 short course wheels/tires. 1/8 buggy tires are NOT allowed. Any truck body intended for the class.
Version history
v1Published.
Aug 16, 2026