PT's RC Raceway rules
Losi Late Model Rules (2026)
v2Class Rules1/10 Losi Dirt Late ModelEffective Oct 1, 2026· Updated 3 months ago
Summary of recent changes
Updated for the 2026/2027 season.
Spec sheet
Governing
- Governing body
- club
- Notes
- Stick or shorty; pinion 19-22; no TLR Tuned parts; PT's RC Raceway final say
Motor & ESC
- Motor type
- Stock / sealed
- Spec motor
- Stock SPMXSM4800
- ESC
- Stock SPMX-1106
Battery & power
- Battery chemistry
- LiPo
- Cells
- 2S
- Max voltage
- 8.44V
- Hard case
- Required
Tires
- Spec tire
- Losi Hoosier (LOS-4237)
Weight & body
- Min weight
- 2800 g
- Body
- Factory Losi cage/panels, driver & interior retained
Chassis & Suspension
- Chassis
- Losi Dirt Late Model
1.Body
Factory cage and panels only; any color paint/decals. Must retain driver and interior — no component removal.
2.Tires
Losi Hoosier tires (LOS-4237).
3.Electronics
ESC: stock SPMX-1106 only. Motor: stock SPMXSM4800 only (cooling fan permitted on waterfall). Any radio; servo open.
4.Battery
2-cell hard-case LiPo, 8.44V max (no burn-off). Stick or shorty.
5.Gearing & setup
Spur: stock LOS232038 only. Pinion: 19, 20, 21, or 22. Shock oil, diff oil, and springs: open. Minimum weight 2800 g.
6.Restrictions
No TLR Tuned optional parts allowed. PT's RC Raceway has final say on the rules of all classes.
Version history
v2Updated for the 2026/2027 season.
Aug 15, 2026