I've been racing the past 5 months with the Tubliss system. I've gotten one front flat tire, but it didn't affect my result much. I rode 40+ km on it with no issues. The tubliss system isn't as robust as bibs, but it does last longer (after a season bibs are toast) and is better for regular riding, IMHO. Changing a bib is dead easy and only takes 5 minutes so I won't get into that debate.
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