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Merlin Cycles£4.30Visit shop Schwalbe Sv12 Mtb Inner Tube 26” X 1.35/1.75” - 26" / 1.35" / 1.75" / Presta
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This guide is for cyclists using Schwalbe SV12 inner tubes, designed to provide a reliable and long-lasting solution for 26" and 650b wheels. The key benefit is enhanced puncture resistance and reduced pressure loss thanks to the Butyl rubber compound. A potential caveat is the need for proper inflation to maximize performance and longevity. This guide covers setup, care, troubleshooting, and frequently asked questions to help you get the most out of your Schwalbe inner tubes.
| Model Part Number | 10423343V |
|---|---|
| Brand | Schwalbe |
Refer to the tire sidewall for the recommended pressure range. Maintaining the correct pressure helps prevent punctures and ensures optimal performance.
A Presta valve is thin with a screw-on cap. It requires a specific pump head to inflate. Before inflating, unscrew and depress the valve core to release the seal.
The SV12 tube is designed for tires within the specified 1.25-1.75 width range. Using it with a wider tire might cause it to stretch beyond its capacity.
Replace the damaged tube with a new one or patch the existing tube. Always carry a spare tube and the necessary tools (tire levers, pump) when riding.
Store spare tubes in a cool, dry place, away from sunlight and extreme temperatures. This will help preserve the rubber and extend its lifespan.
Butyl rubber is airtight, which means that the tube will lose pressure much slower than tubes that use other rubber compounds. This reduces the need for frequent inflation.
The valve length is 40mm.
Check the tire and tube for punctures. Locate the leak by listening for air escaping or by submerging the inflated tube in water and looking for bubbles. Patch or replace the tube as needed.
Tighten the valve core with a valve core tool. If the valve core is damaged, replace the tube.
Ensure the pump head is securely attached to the Presta valve. If the valve is blocked, gently depress the valve core to release any pressure.
