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Battlefield Raceway rules

Losi Late Model

v1
Class Rules1/10 Losi Dirt Late ModelEffective Aug 12, 2026· Updated 3 months ago

Summary of recent changes

Initial rules from track.

Spec sheet

Governing
Notes
Stock out of box; max 5200 50C battery, no bullets; stock 20T pinion/84T spur 48 pitch; front purple/rear orange springs; stock bearings, no ceramic; radio/receiver box stock
Motor & ESC
Motor type
Stock / sealed
Spec motor
Box stock Losi motor
ESC
Stock
Battery & power
Max voltage
8.44V
Tires
Spec tire
Stock Losi tires and wheels (standard or soft) and inserts only
Chassis & Suspension
Chassis
Box stock Losi Dirt Late Model (all stock factory parts)

1.Overview

Losi Late Model class is to remain stock out of the box with the following specifications.

2.Battery

Maximum 5200 50C battery. ESC battery connectors can be changed. No bullets. Maximum battery voltage 8.44V.

3.Electronics

Radio and receiver must be box stock. Servo and ESC must be stock. Stock servo saver or supplied solid plastic servo horn only. Motor must be box stock.

4.Gearing

Stock gearing only: 20T pinion, 84T spur, 48 pitch. (Caliper readings: 11.2mm pinion, 45.2 mm spur.) Gear cover must be removed.

5.Chassis & Body

No cutting, removing, or lightening of parts unless stated in the rules. All stock Losi factory parts must be used.

6.Suspension

Factory springs: front purple springs, rear orange springs (colors must be visible). Any shock oil may be used. No limiting of shock. No additional fans may be used.

7.Tires

Stock tires and wheels (standard or soft) and inserts only.

8.Bearings

Stock bearings with black stock shields must be installed. No ceramic bearings.

Version history

v1Published.
Aug 12, 2026