Dear customer, the weight of the motor is less than 1.9g, which is tiny and frail. Therefore, the blades need special protection when they are installed. Please install it in accordance with the requirements：
Thanks to Cyril for the motor repair suggestion. BoldClash is about to release the vulnerable parts of motor.
In general, if the motor is not being badly hit, it's not easy to bulge. However, if the motor is bulgy, you can remediate it by using the following methods.
Motor is a core part of RC quadcopter. Take place of the one that has been out of order or malfunctioning; and try our BoldClash Racing Edition 0703 M0703 20000KV 1-2S Brushless Motor for 60 80 100 Mini FPV Racer Black 1.9g. This brushless motor will be what you are waiting for. It is energy-saving and durable for long-term use, and can keep your device running smoothly.
1. Made of high quality material, it is practical and high-quality for long-term use
2. Low energy consumption, compact, convenient and easy to replace
3. Let you enjoy exciting and passionate play time freely
4. Designed to repair and replace old or broken brushless motor
5. Compact, durable and convenient to carry
6. Easy to install and convenient to use
1. Brand: BoldClash
2. Item No: M0703 Brushless Motor;suitable for BWhoop B05
3. Height: 0.63" / 1.6cm
4. Width: 0.39" / 1cm
5. Weight: 0.07oz / 1.9g
6. Shaft: φ1.0mm
7. KV (rpm/V): 20000/15000/12000/10000/8000
8. Voltage: 3.7-7.4V
9. Battery: 1-2S Lipo Battery,20000KV is only support 1S