With the castle/ neu motors (1521) what s the right option to get for a tunnel , also what size shaft 5mm or 8mm , do you pick the most kvs ? Because on offshore electric theres custom winds
1D 2900Kv 5mm Shaft (+$45.00) (
1.5D 1860Kv 5mm Shaft (-$45.00) (0)
1Y 1577Kv 5mm Shaft (-$45.00) (1)...
