Tiny Trainer V2: improved on the V1 with an arm removal system that uses steel M3 screws, quick-fix canopy design, and integrated injection-molded camera mount. Arms are 3mm thick, break one in the field? Just take off the motor, unscrew the arm, and bolt on a new one. Canopy opens with two screws for full access to internals. Camera mount supports 30-60 and 5-25 degree angles. The perfect frame looking to train those tight lines in races.