INJORA Stainless Steel 11T Motor Pinion for 1721 Purple Viper Brushless Motor(2pcs)

Perfect fit

Great part

Why did you pick this product vs others?: Put this on the hobbywing mini 24 motor. Works great. Don’t forget the thread lock

Fits the Apex stock motor.

Awful product as usual. Doesnt matter where injora comes from, amazon, ali express, dh gate, temu, etc., and direct shipping is the absolute worst. Ive bought RC parts for 25 years and injora was top notch equipment across the board. I have bought many injora parts over the years and i mean alot and it all started with their electronics , specifically the brushless esc and motor combo. I have several rc that are 95% injora from years back and have narrowed injora to buying only when injora brings out a new esc and motor. This is not a good product anymore. Quality Control i guess only happens in America. This company is very hard to do anything with on the phone or emails also. Most likely because INJORA is a chinese word from a chinese product , that just might possibly reside in china. If you were to order direct , you wont get what you were even paying for, and if its electronic ,America is stuck with it without possibility of refund or replacement. No one should just accept anything anyone says so please , its amazon , always refundable , so check

I purchased this for a HobbyWing Mini24 set up as there are not many pinion gears with grub screws available. Worked perfectly! Fits like a glove on the HW 1621 motor. I paired it with an Injora aluminum transmission and Meus 9.69:1 for a prerunner build and it is fast! Thanks Injora!

Excellent set of pinions! Fit my needs perfectly and have been holding up without issue. I am also using the injora transmission gears.

1 star only because I had too. NOT A DIRECT FIT 3 GEARS LATER AND I STILL COULDNT GET IT TO WORK WITH THE MOTOR... i purchased this because the gear came with the motor didnt work and I destroyed it trying to shave and grind it ...so I had to purchase these and guess what .. I destroyed these 2 too ..fat viper motor now a paper weight.. So i went with FURITEK.

Works great.

Alles gut

Great quality! Perfect for a bunch of mini motors! Highly recommended!