Compatible to sensored Castle, Hobbywing ESC. Volt: 2310Kv (5S), 1990Kv (6S), 1730Kv (7S), 1500Kv (8S), 1270Kv (9S), 1180Kv (10S), 1010Kv (11S), 990Kv (12S), 850KV (13S), 800KV (15S), 785KV (16S), 720KV (16S), 650KV (18S). Amps: 2310Kv (545A), 1990Kv (471A), 1730Kv (407A), 1500KV (353A), 1270KV (300A), 1180Kv (279A), 1010KV (240A), 990KV (226A), 850KV (210A), 800KV (187A), 785KV (181A), 720KV (169A), 650KV (153A).Shaft diameter: 8mm (or 10mm when requested). We hope it arrives on time; however, since this. This item is in the category "Toys & Hobbies\Radio Control & Control Line\RC Model Vehicle Parts & Accs\Body Parts & Interior\Cars, Trucks & Motorcycles". The seller is "r-mamba_brushless" and is located in this country: CN. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.