Schwalbe Tube No. 19 Click Valve – 27.5"/28"/29" x 1.50–2.40, SCV 40mm, Butyl

Schwalbe Tube No. 19 Clik Valve – The Smarter Inner Tube for 27.5", 28" and 29" WheelsThe Schwalbe Tube No. 19 Clik Valve (SCV) is Schwalbe's next-generation inner tube for 27.5", 28", and 29" bicycle wheels, featuring the revolutionary Schwalbe Clik Valve (SCV) — a completely new valve system that makes inflation faster, easier, and more reliable than any traditional valve. Made from high-quality butyl rubber with consistent wall thickness and full compatibility with the 27.5"/28"/29" tyre family (ETRTO 40/62-584/635), the No. 19 Clik Valve delivers everything the standard No. 19 offers — plus a fundamentally better inflation experience.The SCV system eliminates the two biggest frustrations with traditional Presta (SV) valves: air loss when removing the pump head, and pump head wear from repeated attachment. The Clik Valve clicks on and off cleanly, holds air perfectly during disconnection, and is fully reverse-compatible with standard SV pumps. For tubeless setups, the SCV delivers 50% higher airflow than conventional SV valves — making it the ideal choice for tubeless inflation as well.Key Features Schwalbe Clik Valve (SCV) – Revolutionary Valve System: The SCV is a completely new valve design that clicks onto the pump head rather than screwing on. This eliminates air loss when removing the pump, prevents wear on both the valve and pump head, and makes the entire inflation process faster and more intuitive. No more fumbling with lock rings or losing pressure when disconnecting the pump. No Air Loss on Disconnection: Traditional Presta valves release a small burst of air every time the pump head is removed. The Clik Valve's new valve mechanism holds air perfectly during disconnection — what you pump in stays in. No Pump Head Wear: The click-on/click-off mechanism eliminates the metal-on-metal friction that wears out traditional pump heads over time. The pump head attaches and detaches cleanly without any rotational force. Reverse-Compatible with Standard SV Pumps: The Schwalbe Clik Valve can also be inflated with standard Presta (SV) pumps — so you are never stranded without the right pump. Conversion kits for all common bicycle valves and adapters for Schrader (AV) valves are also available separately. 50% Higher Airflow for Tubeless: In tubeless setups, the SCV delivers 50% higher airflow than conventional SV valves — making it significantly faster and easier to seat tubeless tyres and top up pressure. High-Quality Butyl Rubber: The same proven butyl compound used in the standard No. 19 — excellent air retention, consistent wall thickness, and long-term reliability for everyday riding, commuting, and trail use. Wide Compatibility – 27.5"/28"/29" x 1.50–2.40": ETRTO 40/62-584/635 covers 27.5" (584mm), 28"/29" (622mm), and 635mm rims with tyre widths from 40mm to 62mm — one tube for virtually all MTB, trekking, e-bike, and gravel setups in these wheel sizes. 40mm Valve Length: Suitable for standard rim depths. The SCV 40mm is compatible with all standard pump heads and petrol station adapters (with SV adapter). Specifications Brand: Schwalbe Model: Tube No. 19 Clik Valve (SCV 19) Compatible wheel sizes: 27.5" / 28" / 29" Compatible tyre widths: 1.50–2.40" (40–62mm) ETRTO: 40/62-584/635 Rim diameter (min): 584mm Rim diameter (max): 635mm Tyre width (min): 40mm Tyre width (max): 62mm Valve type: SCV – Schwalbe Clik Valve Valve length: 40mm Material: Butyl rubber Weight: 220 g Delivery contents: 1 inner tube Packaging unit: 1 piece per box / VE: 25 Manufacturer article number: 10464944 Schwalbe article number: 1432838010 EAN: 4026495961004 Supplier code: 4055149643478 Frequently Asked Questions (FAQ)What is the Schwalbe Clik Valve (SCV) and how does it work?The Schwalbe Clik Valve (SCV) is a completely new valve system developed by Schwalbe to solve the two main frustrations with traditional Presta (SV) valves: air loss when removing the pump, and pump head wear from repeated use. Instead of screwing the pump head onto the valve, the SCV clicks on and off — a simple, secure connection that holds air perfectly during disconnection and eliminates metal-on-metal friction. The result is a faster, cleaner, and more reliable inflation experience every time.Does the Clik Valve lose air when I remove the pump?No — this is one of the key advantages of the SCV system. Traditional Presta valves release a small burst of air every time the pump head is unscrewed and removed. The Clik Valve's internal mechanism holds air perfectly during disconnection, so what you pump in stays in. This is particularly valuable when fine-tuning tyre pressure, as you can add small amounts of air precisely without losing pressure on disconnection.Is the Clik Valve compatible with my existing pump?Yes — the Schwalbe Clik Valve is reverse-compatible with standard Presta (SV) pumps. You can inflate it with any standard SV pump head, even if it does not have the Clik mechanism. For the full Clik experience (click-on/click-off, no air loss), you need a Clik-compatible pump head. Schwalbe also offers conversion kits for all common bicycle valve types, and adapters for Schrader (AV) valves are available separately.What wheel sizes and tyre widths does the No. 19 Clik Valve fit?The No. 19 Clik Valve fits 27.5" (584mm), 28" (622mm), and 29" (622mm) wheels, as well as 635mm rims. Tyre width compatibility is 1.50" to 2.40" (40–62mm ETRTO). Specifically: 27.5" rims with tyres 50–62mm wide (50-584 to 62-584), 28"/29" rims with tyres 40–62mm wide (40-622 to 62-622), and 635mm rims with 40mm tyres. Always verify your tyre's ETRTO marking before purchasing.Why is the Clik Valve better for tubeless setups?In tubeless setups, getting enough airflow quickly is critical for seating the tyre bead. The Schwalbe Clik Valve delivers 50% higher airflow than conventional SV valves — making it significantly faster and easier to seat tubeless tyres and top up pressure. The no-air-loss disconnection is also particularly valuable in tubeless use, where every bar of pressure matters during the seating process.How does the No. 19 Clik Valve differ from the standard No. 19 (AV/Schrader)?Both tubes share the same butyl rubber construction, ETRTO compatibility (40/62-584/635), weight (220g), and wheel size coverage. The key difference is the valve: the standard No. 19 uses an AV/Schrader valve (inflatable at petrol stations, universally accessible), while the No. 19 Clik Valve uses the SCV system (click-on/click-off, no air loss, 50% higher tubeless airflow, reverse-compatible with SV pumps). Choose the standard No. 19 if petrol station inflation is a priority; choose the Clik Valve if you want the best inflation experience and use a floor pump or tubeless setup.Can I use the No. 19 Clik Valve on an e-bike?Yes — the No. 19 Clik Valve is fully compatible with e-bikes. Inner tubes do not carry an E-bike rating (unlike tyres). The high-quality butyl construction and consistent wall thickness make it a reliable choice for e-bike use. Pair it with an E-25 or E-50 rated tyre for a complete, certified setup.What pressure should I inflate the No. 19 Clik Valve to?Always inflate to the pressure recommended by your tyre manufacturer, printed on the tyre sidewall. For 27.5"/29" tyres in the 1.50–2.40" range, typical pressures are 1.5–3.5 bar (22–51 psi). Wider tyres (2.25–2.40") run at lower pressures (1.5–2.2 bar); narrower tyres (1.50–1.75") at higher pressures (2.5–3.5 bar). The Clik Valve's no-air-loss disconnection makes it easier to set pressure precisely — add air in small increments and disconnect cleanly without losing pressure.Is the Clik Valve available in other sizes?Yes — Schwalbe offers the Clik Valve system across multiple tube sizes. The No. 19 Clik Valve (this product) covers 27.5"/28"/29" wheels. Check our full Schwalbe tube range for Clik Valve options in other wheel sizes (26", 700C, etc.).