The Pirelli SmarTUBE Patch Kit is the essential repair solution for cyclists riding with TPU (thermoplastic polyurethane) inner tubes. Specifically designed for P Zero SmarTUBE and Cinturato SmarTUBE technologies, this professional repair kit guarantees permanent sealing thanks to a unique formulation adapted to the elastic properties of TPU, a material 70% lighter than traditional butyl.

Technical Overview

Where conventional repair kits fail on TPU, the SmarTUBE Patch Kit makes the difference. Thermoplastic inner tubes require patches and glue specially formulated to create a strong and flexible molecular bond. This kit contains 10 patches in two formats (5 small round 20 mm and 5 large oval 20 x 35 mm) to suit all types of punctures, from simple thorn holes to double "snake bite" punctures. The 7 ml TipTop vulcanizing glue ensures optimal adhesion, while the 5 alcohol wipes perfectly prepare the surface. Weighing only 40 grams, this kit easily fits in a saddle bag.

Technical Highlights

• Exclusive TPU compatibility: Unlike standard butyl patches, these patches are designed to adhere perfectly to the smooth and elastic surface of thermoplastic polyurethane, the ultra-light material used by Pirelli on its P Zero, Cinturato ranges and compatible with other TPU brands.
• Increased thermal resistance: The patches incorporate a high-temperature formulation that guarantees reliable sealing even during intensive braking or extreme heat conditions, preventing premature peeling.
• Dual patch format: 5 small (Ø 20 mm) for micro-punctures and 5 large (20 x 35 mm oval) for larger punctures or inner tube pinches. This versatility covers all puncture scenarios.
• Professional TipTop glue: The 7 ml vulcanizing glue tube (Rema brand) ensures a permanent chemical bond. Optimal drying time of 30 minutes for complete polymerization and lasting repair.
• Surface preparation included: The 5 alcohol wipes remove grease and dirt, an essential condition for maximum patch adhesion on the TPU tube.
• Detailed instructions: The kit includes a step-by-step user manual to succeed with the repair on the first try: light sanding, glue application, drying time, patch placement and pressure.

Application and Use

The 6-step repair process guarantees a professional result: 1) Locating the puncture and removing the inner tube; 2) Cleaning the area with the supplied alcohol wipe to remove all traces of dirt; 3) Light sanding (if necessary) to improve grip; 4) Uniform application of glue on a surface slightly larger than the patch; 5) Wait 30 minutes for the glue to become tacky to the touch (critical time for optimal vulcanization); 6) Patch placement by pressing firmly from the center outward to expel air bubbles. Once polymerized, the repair is permanent and withstands inflation pressure (up to 7-8 bars on road).

Compatibility and Limitations

This kit is exclusively designed for TPU inner tubes: Pirelli P Zero SmarTUBE (road 23-32 mm), Cinturato SmarTUBE (gravel 33-50 mm), and other TPU brands on the market. It is not compatible with standard butyl tubes nor with SmarTUBE Scorpion MTB (different TPU formulation for mountain biking). Pirelli recommends replacing the tube in case of major tears, damage at the valve or multiple close punctures. The 30-minute drying time makes this kit an ideal solution for repair at home or at camp, but less suitable for express roadside repairs during timed rides.

Why This Kit is Essential

Pirelli SmarTUBE TPU tubes revolutionize cycling with their extreme lightness (35 g for a P Zero versus 100-120 g in butyl) and compactness (50% less bulky). But this technology requires specific repair methods. Standard repair kits for butyl do not work on TPU: the glue does not polymerize correctly and the patches peel off under pressure. The SmarTUBE Patch Kit is the assurance of a successful repair that extends the lifespan of your ultra-light tubes and optimizes your investment. Compact (40 g) and space-saving, it slips into any bag and offers enough to repair up to 10 punctures.