I'm in the tire business, but not motorcycle. I'm not sure how the handling would be with all bias. I always thought Michelin made radials only, so that's surprising right there. I do concur on Indian using bias front and radial rear, another surprising thing to me. I'm sure Michelin makes a motorcycle tire that meets the bead fitment, so that shouldn't be a worry. It's the car tire that doesn't match a motorcycle wheel. Confidence wise, I wouldn't worry, but I would be on the side of using radials with this bike.