BBB Cycling BTI-99 ValveExtenders

Airtight Reliability. Deep-Rim Precision.

The engineering highlight of the BBB Cycling BTI-99 ValveExtenders is their precision threaded aluminum construction. Designed specifically for Presta inner tubes with removable valve cores, these extenders screw directly into the valve body to maintain factory-level airtight integrity. By extending your valve core to the very top of the extension, you retain full operational control over your Presta valve; making pressure checks and quick roadside inflation completely hassle-free.

Why the BBB BTI-99 Belongs in Your Saddle Bag:

• Removable Core Design: Threads directly into inner tubes with removable Presta valve cores, placing the valve mechanism at the top of the extender for easy opening, closing, and pressure modulation.

• Lightweight Machined Aluminum: Crafted from high-grade anodized aluminum to keep rotating wheel weight to an absolute minimum while resisting thread wear and corrosion.

• Integrated O-Ring Seal: Features built-in rubber sealing rings at the threaded junction to guarantee a 100% airtight closure under high-pressure road inflations (up to 160+ PSI).

• Deep-Rim Wheelset Compatibility: Essential for carbon aero wheels ranging from 45mm to 80mm in depth, eliminating the need to buy specialized, extra-long inner tubes.

• Included Valve Tool: Ships with a compact core removal tool, making installation and roadside tube swaps fast and simple.

Technical Specifications:

• Material: Anodized CNC-Machined Aluminum

• Valve Type: Presta (For tubes with removable valve cores)

• Package Contents: Sold as a pair (2 valve extenders + 1 valve core tool)

The Alegro Perspective: Standard inner tubes with 40mm or 60mm valves simply won't clear deep-section carbon rims, leaving you stranded if you catch a flat. The BBB BTI-99 set is our favorite because it utilizes the removable core design. Meaning you don't have to guess if the inner valve is open inside the rim. It threads on smoothly, seals tight, and lets you pump up your tires with complete confidence.

Precision Machined Strength. Zero Air Leaks. Master Deep-Section Rims with BBB Cycling.