Schwalbe
Schwalbe Sv1 - 12 X 1/2 X 2 1/4" - Presta - 40Mm

- SV1
- 12 1/2 x 2 1/4"
- Presta
- 40mm valve
About Schwalbe Tubes
A bicycle tube is predominantly made of Butyl rubber. Butyl is a very elastic and airtight synthetic rubber. But as with the tire, other fillers are necessary to make up the rubber compound. The quality of a tube can vary significantly depending on the rubber compound. For instance Schwalbe tubes have extremely high air retention and elasticity. This high elasticity allows a wide range of different tire sizes to be covered.

There is a difference between heat molded and autoclave tubes. Vulcanizing in a mold improves the uniformity of wall thickness, thus reducing weight and improving air retention. For this reason the autoclave tubes which can be produced easier have become less common over the past years. Schwalbe tubes have always been made using the heat molding process.

Every tube also needs a valve, which is bonded to the tube during the vulcanizing process.

Why Choose Schwalbe Tubes?
Besides the quality of the ingredients, the purity of the Schwalbe rubber compound is decisive for the quality of the tube. Before extrusion, the basic material is forced through a total of seven filters under enormous pressure. All tubes are inserted and inflated into a mould for the vulcanization process. Only this ensures an even wall thickness and high air retention.

All tubes are inflated and stored for 24 hours to test for air retention. Afterwards, every tube is carefully checked individually by visual inspection. The Schwalbe tube has been valued by German bicycle dealers for its high reliability for many years.

A tube covers many tire sizes through its high elasticity and quality. Tube no. 17 works with tyres from a width of 28 mm up to 47 mm - a great advantage for stockholding in the trade. At the same time, it is proof of the quality of the tube.

All valves are nickel-plated and threaded. The valve core is always replaceable. Also, Schwalbe tubes with a classic bicycle valve can be inspected for pressure as they have a high-pressure valve core.

Image is for illustration only. Specific sizes shown on image may not be relevant to tube in description

SKU: 48198
Delivery
We want to make sure you choose the right product so if you are not sure about anything or want further information or advice on what to buy, please chat to us first. Your usual statutory consumer rights apply on all goods, you can send them back if in an original condition within 30 days for a full refund. All returns must be paid for by the customer unless it is a genuine error of Bike Boom or a warranty issue. Some card issuers take days to put the money back into your account and Paypal can take up to a month.
Expect your delivery to arrive between 3-5 days and possibly a bit longer for bicycles. You should receive tracking information as soon as your order is fulfilled. We use many different couriers depending on the size, weight and value of the goods being sent. We may decide to send your order in separate packages and at separate times to get those items out to you quicker. We are only a small company and can be easily overwhelmed so please be patient if we haven't met our delivery target. We are human beings so give us a call on the telephone to get an update on your delivery if things are delayed 01273 905920, we are here to help.

Returns
We want to make sure you choose the right product so if you are not sure about anything or want further information or advice on what to buy, please chat to us first. Your usual statutory consumer rights apply on all goods, you can send them back if in an original condition within 30 days for a full refund. All returns must be paid for by the customer unless it is a genuine error of Bike Boom or a warranty issue. Some card issuers take days to put the money back into your account and Paypal can take up to a month!

SchwalbeSchwalbe Sv1 - 12 X 1/2 X 2 1/4" - Presta - 40Mm

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Schwalbe
Schwalbe Sv1 - 12 X 1/2 X 2 1/4" - Presta - 40Mm