I am currently building a 450x trike and I plan to take it to glamis next year to full fill my dream to ride there at least once. I am thinking about running the sand star paddles on the rear. I have ordered a 22x8x10 front tire in a sand star, and I'm thinking about running the sand star rears in a 20x10x10. What do you sand regulars recommend for the rear? Pros and cons of a 10inch vs an 8 inch rim.