Vittoria T-T Kevlar Cuirass 27.5 - Review

Introduction

The Vittoria T-T Kevlar Cuirass 27.5 is a Kevlar-aramid puncture protection insert, placed between your tire and inner tube to safeguard against flats. Perfect for mountain bikes, hybrids, and commuter wheels with 27.5″ rims, this liner is for riders fed up with frequent punctures—ideal for those prioritizing flat protection and peace of mind over featherlight setups.

Design & Build Quality

Crafted from ultra-tough Kevlar (aramid) fiber, it comes as two protective belts weighing approximately 50 g. The design is “virtually indestructible” once installed, and mounting is simple: just slip it between the tire and tube—no tools required. Compatibility includes 26″ and 27.5″ tires, with some versions extending to 29″

Performance & Features

This Kevlar-based liner delivers outstanding puncture protection against thorns, glass, and sharp road debris—cutting flats dramatically. Its thin, dual-belt format ensures you don’t compromise rolling resistance while adding durability. Once installed, it's a “set-and-forget” solution that removes mid-ride tube changes from the equation.

Pros, Cons & Verdict

Pros:

• Excellent puncture protection for peace of mind rides
• Easy installation, no special tools needed
• Compatible with most 27.5″ setups and adds little rolling resistance
• Long-lasting durability for high-mileage use

Cons:

• Adds around 50 g of weight—not ideal for weight-conscious riders
• Slight performance trade-off for minimal added mass
• Limited to clincher/tube setups (not for tubeless systems)

Verdict

For riders battling frequent flats, the Vittoria T-T Kevlar Cuirass 27.5 is a smart, lightweight solution that earns its keep. It offers durable, low-maintenance protection without significantly affecting speed or ride feel. Just be mindful of the extra grams if you’re chasing every ounce of performance.