| Availability: | In stock |
The ANTIX ZR.21 Sport Nitro Engine from LRP delivers dependable power, smooth performance, and easy operation for 1/8 scale RTR vehicles. Designed with user-friendly tuning and reliable running characteristics, this pullstart engine provides an excellent balance of power and drivability for both new and experienced nitro enthusiasts.
Whether replacing an existing engine or upgrading a vehicle, the ZR.21 Sport offers a straightforward and dependable solution for consistent performance on the track or trail.
The ZR.21 Sport combines strong power output with responsive throttle control, providing confidence across a variety of driving conditions. Its simplified tuning design allows for quick adjustments, making it easier to achieve reliable performance without requiring extensive nitro engine experience.
With consistent running characteristics and a durable design, this engine is well suited for RTR platforms and drivers looking for a dependable nitro power system.
Strong power output
Responsive throttle response
Easy tuning design
Convenient pullstart system
Reliable running characteristics
Balanced performance package
Designed for 1/8 scale off-road applications
Suitable for RTR vehicle upgrades and replacements
(1) ANTIX ZR.21 Sport 3.5cc (.21) Nitro Engine with Pullstart
Displacement: .21 cu.in (3.5cc)
Recommended Application: 1/8 Off-Road
Bore: -
Stroke: -
Output: -
Intake Ports: -
Exhaust Ports: -
Practical RPM: -
Weight: -
This product was added on 08/01/2026 by JM.