sparetire By Liz HichensPublished Mar 24, 2011 comments Tweet Share << Back to StoryOpen full size in new window.There are several ways to carry a spare tube on a triathlon bike. Photo: Aaron Hersh The Xlab hydration system with his spare tire. Liz HichensLiz Hichens is the Web Producer of Triathlete.com. She is an Ironman and marathon finisher and fan of all endurance sports.Follow @lizhichensAll articles by Liz