Preheat the oven to 375℉.
Toast pecans in a dry skillet until fragrant, and set aside.
Combine brown rice flour, almond flour, cane sugar, baking powder, cinnamon, and salt in a large bowl, and mix well.
In another bowl, mix almond milk, melted coconut, vanilla, and ground flax seeds. Add the wet ingredients into the dry ingredients, and stir until they are combined or use a hand mixer.
Fold in the mashed bananas and crushed pineapples.
Grease or spray a 10-cup capacity Bundt pan with oil. Add ½ cup of the toasted pecans to the base of the pan, followed by the batter.
Bake in a preheated oven for about 1 hour or until a fork inserted comes out clean. Cool completely before adding the glaze.