Are tire inserts safe? All you need to know about foam inserts for tubeless systems

Cycling cognoscenti love a debate, and lately, the hooked vs. hookless rim discussion has been getting a lot of airtime. Not so long ago, the debate was between tubeless tires vs. tubulars, but it didn’t take long for tubeless to emerge as the victor in that battle, so we’ve collectively moved on to what may seem like yet another exercise in splitting ever-finer hairs. Corollary to this discussion is the complication introduced via the use of tire inserts, yet another factor in the air, rubber, carbon, foam and sealant mix keeping riders upright and headed in the right direction. 

Having trouble making sense of it all? Let’s take a step back.

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