I agree with Junkie about going ahead and swapping out the D28 for the Xploder D35. If you are going to run bigger tires, then you are going to have to expect breakage, not necessarily from the word "go", but sooner or later... even after 10 years. I got lucky and ran some decent trails with my BII and the D28 on 31's without breakage, but the thought was always there. Even now, with her restricted to streetduty, I have gone back to P235's to help with ensuring that I don't break anything.