In a large plastic resealable bag, combine lime juice, cayenne pepper, thyme, allspice, salt, pepper, garlic, brown sugar, jalapeno, olive oil, and cinnamon. Seal bag and squish together to mix everything up. Add chicken thighs and marinate for at least 30 minutes.
Light a grill under medium high heat. Put skewers together by alternating, chicken, mangoes, and red bell pepper.
Grill for about 5 to 10 minutes, depending on the thickness of your chicken chunks, and allowing chicken to become cooked throughout. Serve with fresh pineapple!