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Roval CLX 32 Disc – Rear

Roval CLX 32 Disc – Rear

Part No. 30017-7902

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When we set out to create a lightweight disc wheelset, we didn’t want it to be “just another climbing wheel. We wanted to provide you with the lightest disc wheelset out there with all the aerodynamic attributes of something twice its depth. It was a tall order, but in the end, our CLX 32 Disc not only delivers on this in spades, but it also provides incredible brake modulation and power in all conditions, increased impact resistance, and a disc-specific carbon layup that increases strength while decreasing weight.

Our design process started with a low overall weight at the forefront, as we knew what weight we could hit with the information and technology we had available. With that weight in mind, we then turned our focus to aerodynamics and began an iterative process of designing and testing over 150 individual rims to find the optimal shape. These innumerable Computational Fluid Dynamics (CFD) models, Win Tunnel hours, and shots of espresso left us with a 32mm-deep shape that boasts more logged wind tunnel time than any other wheel in its category.

Once we found the most aerodynamic shape, at the 32-millimter depth, we came back to the weight focus and proceeded to experiment with over 40 different layup methods to reach our desired weight. And this made the CLX 32 Disc lighter and faster than every other competitor in the lightweight wheel category.

For the CLX 32 Disc rear, we mated the rim to our Aero Flange (AF) series hub with DT Swiss Aero spokes to create the best overall system. This resulted in a 740-gram, 21mm-wide (internal width) front wheel with an extremely low inertia value. In cycling, inertia relates to the amount of force it takes to accelerate or decelerate, so wheels that are built with lightweight rims, like the CLX 32, result in a lower inertia value that creates a lively wheel that allows you to accelerate, decelerate, and change direction with less effort. But why so wide? Well, additional width does three primary things for a rim—it provides additional structural strength, it allows for a clean rim and tire interface when using wide tires (resulting in enhanced aerodynamics and faster rolling properties), and it better supports the tire in hard cornering. This boosts both predictable grip and confidence when things get twisty on the descents.

Each front wheel also employs the legendary CeramicSpeed bearings and comes with our padded wheelbag, quick-release, tubeless plugs, and a tubeless valve.

Specialized設計輕量碟煞輪組時,希望它不要「只是另一款爬坡輪」,而是要成為世上最輕巧的碟煞輪組。要讓其框高只有傳統同性能輪組的一半,卻具備全部的空氣力學性能。雖看似遙不可及,但CLX 32碟煞輪框不僅輕鬆達標;並且不分路況,都具備驚人的煞車制動力與動力,以及更多的抗衝擊力;搭配碟煞專屬的碳纖維編織法,能在提升強度時還能減輕重量。

Specialized以追求整體輕量為設計的出發點,並根據現有資訊及技術訂出目標重量。接著我們把焦點轉向空氣力學,並開始進行迭代設計,並測試150個以上的輪框,以找出最優異的形狀。歷經無數次電腦流體力學(CFD)模型測試、Win Tunnel風洞實驗以及無數杯義式濃縮咖啡後,我們終於發現框高32mm版本,其速度比其他規格都還要快。

找到最符合空氣力學的形狀,並搭配32mm框高後,我們再回過頭來處理重量的問題。Specialized實驗了超過40種不同的纖維編織技法以追求渴望的重量,終於打造出比其他輕量級車輪更輕、更快速的CLX 32碟煞輪框。

CLX 32碟煞後輪使用專門Aero Flange(AF)系列花鼓,搭配DT Swiss Aero輻條,創造出最佳的整體系統,造就740g、21mm寬(內徑寬)、超低慣性的前輪。慣性會影響騎乘加、減速所需的力量,因此像是CLX 32等輕量化輪框的慣性較低,就可增加車輪的靈活度,讓您加、減速和轉向都更加輕鬆。但為何需要這麼寬?加寬後的輪框有三大功效,能提升結構強度、使用寬胎時還能保持輪框和輪胎的介面乾淨利落,可強化空氣力學效應,並增加滾動性);並增加輪胎高速過彎的支撐力,在下坡多彎路時抓地力仍強,讓您騎乘更有自信。

每個後輪皆配備傳說中的CeramicSpeed培林,另附有襯墊輪袋、快拆、無內胎專用塞以及一個專用氣嘴。

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