0702 motors between 28,000 and 30,000KV are commonly used for freestyle and race spec whoops.
Use only 1.2 inch (31mm) props. All BNF whoops on the market with these KV motors are using 3 blade props. (see examples)

Hummingbird 0702 True 30000kv RaceSpec Brushless Motors – (Set of 4)

The Hummingbird 0702 30000KV RaceSpec Brushless Motors are engineered for high-speed whoop racing, delivering true 30000KV performance for extreme speed and power. Designed for pro pilots, these motors weigh just 1.29g per motor, including straight enamel wires with heat-shrink, making them some of the lightest available on the market. NewBeeDrone is the first company to use straight enamel wire for direct soldering to the ESC, reducing weight and improving efficiency—ideal for high-speed racing where every gram counts.

These motors are specifically built for 1S racing setups and offer precision performance. For maximum longevity, we recommend pairing the Hummingbird 0702 motors with NewBeeDrone Smoov Lube Motor Bearing Oil, which helps reduce friction and wear, keeping your motors in top condition.

WARNING #1: 

This motor is meant for our Hummingbird V3.1 RaceSpec BNF, and is not recommended for use on any other whoop due to the very high KV rating. 30000KV is very high, even for racing applications, and can easily cause damage to batteries, ESCs, and the motors themselves. This product is designed for experienced pilots only who fully understand the risks associated with high-KV motors. Unlike the majority of our products, returns will not be accepted for this motor, and we are not responsible for any damage these motors cause to themselves or any other components that you choose to use them with.

WARNING #2: 

Each motor phase consists of two enamel wires. Be careful not to mix the wires from different phases, as this can cause the motor to burn out.

FPV Motor Sizes Guide	FPV Motor Volume Guide
See this Motor Size Guide for information on what sizes of motors are used in popular BNF and PNP FPV drones.	See this Motor Volume Guide for information about what other motor size is similar to the one you are looking for.