BBB Cycling CoreCapNo more trouble with the Presta valve?

Matthias Borchers

 · 15.02.2026

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Photo: BBB/Roosenboom
BBB Core Cap
With the CoreCap, BBB Cycling presents a new development of the traditional Presta valve, which is designed to allow 300 per cent more air flow. The system aims to eliminate the weak points of conventional Presta valves and works with all common pump types including Schrader heads. Available as a complete tubeless valve set or upgrade kit for existing valves from 16.95 euros.

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Compatibility as a core feature

The Dutch accessory manufacturer BBB Cycling developed the CoreCap system in response to the weaknesses of traditional Presta valves. These tend to bend, clog or break with frequent use, especially with tubeless setups. The CoreCap eliminates these problems with a completely new internal design that does not require fragile adapters or unscrewable valve cores.

The most important new feature is the universal compatibility with various Pumps. The CoreCap works directly with standard Schrader pump heads, as used on modern floor pumps and petrol stations. Riders can inflate their tyres anywhere without the need for adapters or special fittings. The internal design maximises air flow for faster and smoother pressure adjustments, while the robust design withstands repeated use and harsh conditions.

Technical improvements in detail

According to the manufacturer, the CoreCap system achieves a 300 per cent increase in air flow compared to conventional Presta valves. This improvement results from the elimination of the internal valve core design, which restricts the air flow in traditional systems. The new geometry enables a more direct air flow without turbulence or constrictions.

The compatibility extends to all common Pump headsincluding double-head and auto-select models for Presta, Dunlop or Schrader valves. Whether in the workshop at home, in the bike shop or on the road, the CoreCap connects to virtually any pump available. This universal applicability eliminates the need to carry different adapters or use special pump heads.

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Two product variants for different applications

BBB Cycling offers the CoreCap in two configurations. The CoreCap AL Valve Set is a complete tubeless valve system that utilises the integrated CoreCap technology from the ground up. This variant is aimed at riders who want to build new wheels or completely renew existing tubeless systems.

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The CoreCap Valve Caps Upgrade Set enables the retrofitting of existing Presta valves with removable cores, including those on hoses. Both versions use the same simplified design that eliminates the fragile internal core and improves air flow by 300 per cent. This results in faster filling and better pressure consistency in all applications.

Practical advantages in everyday driving

"The CoreCap solves everything that made traditional Presta valves frustrating," explained Product Manager Roderik Jager. The new design eliminates typical problems such as bent valve rods, clogged mechanisms or broken components. Riders can even inflate their tyres at service stations without the need for additional equipment.

The robust design withstands the stresses of daily use considerably better than conventional Presta valves. The advantage of the reinforced design is particularly evident in tubeless systems, where frequent pressure adjustments are common. The system is designed to function reliably under temperature fluctuations and mechanical loads that often damage traditional valves.

Availability and pricing

The CoreCap Valve Caps Upgrade Set costs €16.95 and is available in six colours. This variant enables the cost-effective modernisation of existing valves without having to completely replace the hardware. The set contains all the necessary components for upgrading standard threaded Presta valves.

The CoreCap AL Valve Set is available in three lengths: 40 mm for 29.95 euros, 60 mm for 32.95 euros and 80 mm for 34.95 euros. These complete valve sets are available in two colours and are suitable for new builds or complete system renewals. The different lengths take into account the different rim depths of mountain bike, road bike and aero wheels.

Conclusion & significance for the bicycle industry

The CoreCap represents a functional evolution of everyday bike components. From workshop set-ups to repairs on the road, it is designed to offer reliable inflation, cleaner operation and full compatibility with existing equipment. The universal pump compatibility could become particularly relevant for touring riders and commuters who rely on different air sources.

Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

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