Hello everyone, thank you for your patience while we look into this. Can you guys provide info on the agama spur or other spur gears you are using? Specifically interested in the thickness.

In the mean time we think the issue is due to chassis flex under hard flat landing or casing a jump. Please be sure to set your mesh as close as possible without the teeth actually bottoming out in the opposing gear. When setting the mesh this close with new spur and bell the mesh will sound noisy. Please run it for one tank and the gears will break in and be quiet. To this point I have not broken a single spur when setting the mesh as I mentioned.

Thank you and happy holidays.