Valve kit WELDTITE Tubeless Valve Kit 2 × 55 mm Presta — WLD-05050

WELDTITE Tubeless Valve Kit 2 × 55 mm Presta provides two tubeless-compatible Presta valves with a 55 mm stem length for bicycle rims that require longer valve stems. The valves are designed for sealing tubeless tyres and allow straightforward inflation and pressure retention for tubeless wheelsets. The kit is intended for use where a reliable, screw-in style valve is needed to maintain an airtight seal between rim and tyre.

Advantages

The valves are supplied as a matched pair with durable construction that resists corrosion and wear in normal cycling conditions. Their 55 mm length accommodates deep-section rims and ensures the valve extends sufficiently for easy access when inflating tyres. Threaded Presta stems allow secure attachment of valve cores and caps, supporting simple removal and replacement of valve cores for injecting sealant or servicing the valve.

Suitable for

• Conversion of clincher rims to tubeless setup where 55 mm stem length is required
• Maintenance or replacement of existing tubeless valves on deep or mid-profile rims
• Use with tubeless-compatible tyres that rely on a secure Presta valve seal

Key specifications

• Valve type: Presta (threaded tubeless valve)
• Quantity: 2 valves per kit
• Stem length: 55 mm
• Compatibility: designed for tubeless tyre systems and rims requiring 55 mm stems
• Core: removable threaded valve core for sealant injection and servicing

How to use

Install the valve by inserting the stem through the rim valve hole from the inner side and secure it with the valve nut on the outer side until hand-tight; avoid overtightening. If a rim strip or tape is present, ensure the valve seat is aligned and the tape is cut neatly around the valve hole to maintain an airtight seal. With the removable core in place, mount the tyre and add an appropriate tubeless sealant if required. Inflate the tyre with a pump or compressor to seat the tyre bead, then adjust pressure to the recommended level for your tyre and riding conditions.

Usage recommendations

Periodically check the valve and core for tightness and signs of leakage. When adding sealant, remove the valve core for easier injection and replace the core securely afterwards. Use a valve cap to protect the valve from dirt and to assist in maintaining a clean seal.