Pirelli P-Zero SmarTUBE Lightweight TPU Road Inner Tube — Yellow, 24.5" x 0.9"–1.3", 42mm Presta Valve

The Pirelli P-Zero SmarTUBE is a lightweight TPU inner tube for 700c road tyres that packs superior puncture resistance and compact carryability with a 42mm Presta valve.

Designed for riders who value low weight, small packed size and improved durability over traditional butyl tubes, the Pirelli P-Zero SmarTUBE uses a thermoplastic polyurethane (TPU) compound to deliver a balance of performance and protection. It fits 700x23–32 tyres and works with both rim and disc brake setups. The yellow tube is easy to spot when changing flats and shrinks down more compactly than conventional options, making it an ideal spare for road, gravel or fast training rides.

How does this tube reduce weight and bulk for a spare?

The TPU construction is inherently lighter and compresses more than butyl rubber, so the P-Zero SmarTUBE takes up less room in a saddle bag or jersey pocket. That means you can carry a reliable spare without sacrificing packing space or adding significant weight to your kit.

• TPU material for lower density than butyl
• Smaller folded footprint for easy storage
• Yellow color for quick visual identification during repairs
• Fits 700x23–32 tyre widths to cover common road sizes

How does puncture resistance compare to regular inner tubes?

Pirelli's TPU formulation gives the SmarTUBE better resistance to cuts and punctures than many standard butyl tubes, while still remaining flexible and lightweight. It’s not a replacement for tubeless systems in terms of sealant self-repair, but it offers notable improvement where a butyl spare would normally be used.

• TPU compound engineered for greater cut resistance
• More robust against shards and small debris than conventional butyl
• Good compromise between weight savings and protection
• Compatible with tyre liners and typical road tyre pressures

Will this tube work with my wheels and brakes?

The Pirelli P-Zero SmarTUBE is sized for 700c rims and fits tyre widths from 23 to 32 mm, so it suits most road and many gravel setups. The tube uses a 42mm Presta valve long enough for deeper-section rims and is compatible with both rim- and disc-brake bikes.

• Size range: 700x23–32 (road and light gravel compatibility)
• 42mm Presta valve for mid-to-deep rim profiles
• Works with disc brakes and rim-brake systems alike
• Standard valve core design for pumps and CO2 inflators

How easy is it to install and carry during rides?

Installation mirrors that of any conventional inner tube: partially inflate, seat inside the tyre, then fully inflate to the recommended pressure. Packability is a strong point — the TPU tube folds down small and takes minimal space in a pocket, saddlebag or multi-tool roll.

• Preston-style valve fits common pumps and inflators
• Flexible TPU eases tyre seating and reduces pinches
• Compact folded size fits most on-bike storage solutions
• Bright yellow color helps with quick repairs in low light

Who is this for? The Pirelli P-Zero SmarTUBE is aimed at road cyclists and fast commuters who want a lighter, more compact spare with improved puncture resistance compared to butyl tubes. It’s a practical choice for riders who prefer the simplicity of an inner tube over tubeless systems but still want performance-minded materials and easy on-ride storage. If you need a dependable spare that saves space and adds resilience without the weight penalty, this tube is a suitable option.