Powerful, fast and durable Brushless 1105 motors come in two KV options: 5000KV for 4S whoop and 6000KV for 3S whoop. BULLET POINTS 1105 brushless motors are customized for Beta85X. 6000KV for original Beta85X(HD), support 3S power. 5000KV for new Beta85X(HD), which could support 4S power.  Fits with 2"-3" propellers  Shaft Diameter: 1.5mm Weight: about 20g (4 pcs) 1105 Motors Recommend Battery Cables 6000KV 3S 30AWG 5000KV 4S 28AWG Note: DO NOT recommend the 6000KV 1105 motors for 4S power. If you try this combo, the motors will overheat and burn (maybe the ESC). As a result, it will cause permanently damage on the motor or ESC. RECOMMENDED PARTS Propellers: EMAX Avan 2" Props / 3020 2-Blade Props / 3030 3-Blade Props Frame: Beta85X frame FC: F4 2S Brushless FC ESC: BLHeli_32 16A SPECIFICATION Height: 14mm Weight: about 5.2g (1 pc) Shaft: φ1.5mm Motor Mount Holes: M2.0 on Dia 9.0mm KV (rpm/V): 6000 / 5000 Plug and cables: Micro JST-1.25 3-pin connector with 30AWG cables (6000KV) Micro JST-1.25 3-pin connector with 28AWG cables (5000KV) PACKAGE 4 * BETAFPV 1105 Brushless Motors