Challengetech

Challenge Strada Bianca PRO Open Tubular

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Hinta: 64,90 6490
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Postipaketti (Postit ja automaatit) 6,90 €
Määrä: kpl

Challenge Strada Bianca Pro, Kuuluisan reitin mukaan nimetty mukava maantiepyörä tai retkikumi.
Laitoit sitten geeliä taskuihin tai leilillisen viiniä, nämä renkaat vievät sinut kivasti taukopaikalle.

Rengas ei ole vulkanoitu vaan kerrokset ovat käsin ladotut ja liimatut, jolloin rengas antaa ainutlaatuisen herkkyyden ja rullavuuden renkaalle. Rengas on erittäin mukava ajaa, jopa kovilla paineillakin mikä on perin poikkeuksellista sisäkumilliselle ulkorenkaalle.

Klikkauksen takaa lisäpohdinnat

Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt
Size: 700
Tire Width: 30 mm
Weight: 355 gr
TPI: 260
Bead: Aramid
Casing: SuperPoly
Flat
protection:
Double PPS
BAR: 6-9
PSI: 90-130
Color: Black-Black
 

What's the point in training till you drop if you're going to be losing efficiency and speed in your tires? Ride quality is paramount, and no other tire offers the supple, responsive traction of a Challenge Tubular, eliminating barriers in achieving your maximum speed and potential.

Supple tires not only offer a sublime ride, they reduce rolling resistance, and enable more precise handling and a greater range of pressures. They adapt quickly as the tire changes shape while cornering and rolling, which increases road surface contact and grip while cornering, plus shock absorption as you pass over irregularities in the road.

When searching for a Tubular or Open Tubular, consider the following factors, all of which play a role in the tire's performance.

 Tubulars and Open Tubulars: Tubular tires are, well, tubular. They are sewn shut around a Seamless Latex Inner Tube, already in a tube shape, and are mounted and glued directly on a rim, rather than around a tube. However, they require a purpose-made tubular rim that would usually only be used on race day to avoid damage. Open Tubulars mount like a standard clincher, but are made using the same artisan Handmade process as our Tubulars and maintain most of the suppleness and ride quality gained from a Handmade Tubular.

Non-vulcanized: Ultimately the major difference between a Handmade Tubular or Open Tubular and the majority of clinchers is that it will avoid the heat and pressure process called vulcanization, which most tires undergo in production. It is used to bind the materials, but compromises the ride quality when the rubber gets stiffer. Treads are hand-glued onto Challenge Tubulars and Open Tubulars, and the latex and rubber maintain their ideal quality.

Thread count (TPI)Thread count plays a major role in the weight, suppleness and durability of Tubulars and Open Tubulars. The higher the number of threads per inch (TPI), the thinner each individual thread, making a thinner and lighter casing and a more supple tire. Our lower TPI casings are thicker and more durable.

CasingsWe offer casings made from silk, cotton or polyester. Silk provides the highest ride quality, with threads so fine we don't measure the thread count, and is stronger than cotton and polyester. Corespun cotton casing is lite and supple, and available up to 320TPI for maximum control and performance. SuperPoly and Poly polyester casings are less expensive and more durable, still providing the qualities of top-end tubulars.

Rubber: Our treads are made from locally-sourced natural rubber in our own factory in Thailand. Not only is natural rubber more supple than synthetic rubber — which accounts for the majority of the world's tire production — the grip is far superior. 

Puncture Protection Strip (PPS): An extra layer of uniquely-crafted fabric with highly resistant properties sits between the casing and the tire to reduce the risk of punctures. Tires intended for use in intense conditions with a high puncture risk are reinforced with a second PPS layer beneath the casing.

 

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