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  • Schwalbe 10426383 SV20 Extra Light Inner Bicycle Tube 28 Inches Black
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Schwalbe 10426383 SV20 Extra Light Inner Bicycle Tube 28 Inches Black


Price: £8.99 & FREE Delivery in the UK on orders over £20. Details
In stock.
Dispatched from and sold by Amazon. Gift-wrap available.
7 new from £7.20
  • Extremely air-tight. Less air loss means having to inflate less.
  • Extremely reliable! Each SCHWALBE tube is individually examined twice at the factory to ensure air-tightness.
  • 80mm Presta valve, Ideal for deep rim wheels
  • Dimensions 700 x 18/25mm, Weight: 85g
  • Superb Quality Schwalbe Product

ave 20% When You Spend £30 or More on Selected Sportswear with Code SPRING20 Save 20% When You Spend £30 or More on Selected Sportswear with Code SPRING20

£8.99 & FREE Delivery in the UK on orders over £20. Details In stock. Dispatched from and sold by Amazon. Gift-wrap available.

Product details


Product Description

Product Description

Schwalbe SV20 - 700 x 18/25mm 80mm XXL Valve Tube - Presta

Box Contains

1 x Tube

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 29 reviews
13 of 13 people found the following review helpful
Light but weak 29 Jan. 2011
By lekoshe - Published on Amazon.com
Colour Name: No update foundSize: 700c x 18-28 (40mm Presta Valve)
I can't recommend this tube for everyday use. I've been racing and training on them, which my LBS prefers. For racing, especially smooth-road criterium racing, they are nice and light, and the 80mm valve option is ideal for deep-dish wheels.

However, training and everyday riding is a different matter - being light and thin, they are not at all robust and I've experienced far too many flats with them on normal roads. Fortunately there are alternatives, and heavier tubes are fine for training.
7 of 7 people found the following review helpful
Great tubes, once the valves are tightened. 1 April 2013
By Cygnet - Published on Amazon.com
Colour Name: No update foundSize: 700c x 18-28 (40mm Presta Valve) Verified Purchase
When I first installed these tubes, one would loose over 30 lbs of pressure in one day and the other about 15 lbs. I thought there must be a defect in the one tube and was very disappointed in how the other was performing. I took the tubes off the bike and tested them for leaks. I found none.

I finally gave up and decided to return them. I was loosening the locking nut on one tube's Presta value to deflate it in preparation for repackaging, and felt the valve give a little. I hadn't even thought about the fact that these tubes have replaceable valve inserts (even though it is mentioned in the product description). As it turns out both the valve inserts were a little loose. I removed them, put a little silicon lube on the seats, and re-installed them. They have been performing marvelously ever since.

Whenever I buy these tubes in the future, I will be servicing the valve inserts before mounting them. They are a great match to my Schwalbe Ultremo DD tires. However, I wish Amazon carried the SV20 tubes (65 grams vs 105 grams).
2 of 2 people found the following review helpful
Schwalbe 700X18/28 SV15 Tube - 40mm Presta Valve 3 Dec. 2013
By Ralph Furlong - Published on Amazon.com
Colour Name: No update foundSize: 700c x 18-28 (40mm Presta Valve) Verified Purchase
I have a Co-Motion Tandem that uses 700X28 tires and needed some replacement tubes to carry with us when we went to Yakima (lots of goat heads, multi-pronged thorns) so flats are a fact of life. So, I ordered these to take with us on the trip. Here is what I liked:

1. Relatively speaking, they are well priced for the quality that they provide. We used three of these on our trip (two front flats and one rear flat) on 140 miles of riding from winery to winery. The fit perfectly and had no issues.

2. The tubes were easy to repair when the occasion necessitated repairing.

3. The length of the Presta Valve is exactly what is marked on the box!! I have purchase a few that were shorter than what was listed. These were perfect for our rims.

What I did not like:

1. The weight of the tube was a little more than what I was expecting, but not enough to be a problem. The rubber just appears to be a bit thicker than some other tubes I have purchased.

Overall, I am happy with the performance of the tubes and will buy them again.
2 of 2 people found the following review helpful
Excellent! 7 July 2011
By Ben Twain - Published on Amazon.com
Very satisfied. Have been using these tubes for the past 3 months. Only one flat so far after 500 miles, which is better than average for me.

Be aware that the valve stem is long.
2 of 2 people found the following review helpful
Sold on Schwalbe 27 Aug. 2012
By Smilin' biker - Published on Amazon.com
Size: 700c x 18-25 (60mm Presta Valve) Verified Purchase
I love riding. I hate having to fix flats. Discovered Schwalbe two years ago. Now I'm sold. I had four flats -- all overnight while bike was sitting in my bikeroom -- with another high-end brand before I found Schwalbe. I've only had one flat in the past 9,000 miles.
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