zoom Challenge Chicane XS 33 Open Tubular Cyclocross Tyre
Challenge Chicane XS 33 Open Tubular Cyclocross Tyre
Add Challenge Chicane XS 33 Open Tubular Cyclocross Tyre to your basket now
|Black / Brown||700 x 33c||
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The Chicane XS 33 has been a multi cyclocross Champion for years. With Challenge's Open Tubular construction and a aggressive side lugs for confidence in loose corners but a file centre tread pattern for speed on hard, dry terrains.
Top Features of the Challenge Chicane XS 33 Open Tubular Cyclocross Tyre
- 33mm Width
- 300 TPI
- Superpoly Casing
- Aramid Bead
- Challenge PPS ‘Puncture Protection System
- 30 - 90 PSI
- Use: Dry, grassy, dusty or icy conditions
|Puncture Protection:||Puncture Protection Strip|
|Use:||dry, grassy, dusty|
|Wheel Size:||700c (622)|
Challenge OPEN TUBULAR
The open tubular construction differs from that of a standard clincher. The open tubular is first constructed exactly like a tubular, using the same materials and technology. But instead of its casing being sewn together with an inner tube inside, the open tubular is produced flat and beads are formed by folding the sides of the tubular casing around aramid fiber threads.
The supple ride of an open tubular provides performance and comfort similar to that of a tubular; excellent traction and cornering, low rolling resistance and excellent shock absorption. If combined with a latex (instead of butyl) inner tube the ride becomes even closer to that of a tubular. The open tubular performs like a tubular, but is conveniently mounted as a standard clincher tyre.
Challenge open tubular vs. traditional clincher
Open tubular construction differs from that of a standard clincher. A classic clincher is put through extreme heat and pressure when vulcanized (or cured or hardened) into the U-shape that you see when it is fit on the clincher rim. This system makes the classic clincher tyre stiffer so it bounces when it hits bumps in the road and has a harder feel. This stiffness translates into higher rolling resistance and more road shock passed to the rider. It also tends to corner poorly, as the harder rubber has less grip over imperfections. People, however, may often choose clinchers for their longer lifespan tread due to the harder, more durable rubber.
The open tubular is ‘a whole different animal’ to a standard vulcanized clincher, offering incomparable quality, benefits and construction. Even a simple width-to-width comparison between the two is not easily or comparable. An open tubular is made using the same processes as a tubular. The natural rubbers and latex used in the tread and casings are soft and supple. When the open tubular is finished it has a flat shape (laterally) so the tire only takes a rounded O-shape when it is fit into the two clincher rim hooks. The open tubular is more supple and deforms easily, conforming to the terrain and absorbing and softly rolling over road shocks. The lower rolling resistance means a faster, smoother rolling tire that absorbs vibrations. The softer natural rubber tread will grip road imperfections better, resulting in extremely safe cornering, like a great Formula-1 tire, on either wet or dry road conditions.
Challenge PPS ‘Puncture Protection System’
A special puncture resistant fabric is placed between the tread and casing to increase the tires’ puncture protection. Some tyres receive a second layer of PPS as a lining in the casing and designated as 2xPPS or Double PPS.
About Cyclocross Tyres
Cyclo Cross tyres are for use with road wheels to allow them to be ridden off road. They range from 30 to 35mm wide and are designed with different tread patterns to suit the various conditions that can be encountered during the Cyclo Cross season. Usually at the start of the season the ground is dry and hard so a narrower low tread tyre is needed as low rolling resistance is a priority. Later in the season when the ground is wet, grip is a priority so a wider tyre with increased tread would be the better option.
About the Challenge brand
In 2003 Challengetech created its own brand “Challenge”. Challenge, as the word says, wants to point out how difficult and exciting it is to keep the tradition of high quality products, created with obstinacy, with the steady research of special materials and through handcrafted processes. Since the 2000s, Challengetech has being producing tubulars for other brands, thanks to the constant use of these products in the professional cycling.
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