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Roval Traverse SL Fattie 27.5 148

Roval Traverse SL Fattie 27.5 148

Part No. 30119-7500

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Trail wheels often fall into two categories—they’re either heavy and durable or light and flexy. And because of this, a lightweight, wide-profile, and enduro-ready carbon wheel seems like something only found in a fairytale, but lucky for you, we made it a reality. The Traverse SL Fattie 27.5 puts all the flick'able, nimble features you need in an all-mountain wheel into one package, and it has the results to prove it.

Along with light overall weight, stiffness, and durability, another top priority for the Traverse SL was ease of use. First off, we got rid of the creaky straight-pull spokes and corrosion-prone alloy nipples. Next up, we landed on 28 J-bend spokes, for both the front and rear wheels, that are all the same length—making it easy to find replacements if needed. And finally, we engineered a new hub design, with a wider profile and higher flange to aid in overall stiffness.

What's with the big-boned name, you ask? The Traverse SL Fatties may be wide, but with a 30mm inner rim width, they’re far from the girth of a fat bike rim. But let's talk width. You've probably noticed that mountain bike rim widths have hovered between 19 and 23 millimeters for decades, and they've been long overdue for a change. In the search for a better wheel design, our engineers began testing 2.3- to 2.5-inch tires on 45-millimeter-wide fat bike rims to see what, if any, benefits could be found. It only took them a few rides to realize that the wider rims offered a variety of advantages, like adding additional tire volume, which better supports the tires in hard cornering, greatly improves traction because of the ability to run lower pressures, and noticeably increases rim stiffness. They did note that there is an occurrence of diminishing returns with increasing width, however, and after testing everything from 25 to 45mm, determined that a 30mm inner width is optimal.

After determining the width, we began designing the rim using the knowledge that we gained when developing the Control SL. With this, we started with our Zero Bead Hook technology that gets rid of the weak spot found in a traditional wheel, and combined it with the wider profile to make a carbon rim that effectively dissipates forces. This way, you can take abuse from rocks without the worry of cracks or dents. Ok, so they’re strong, impact-resistant, and tire supporting—they must be heavy, right? Wrong. Even though “fattie” is in their name, they're far from fat.

To achieve this weight, we hand-build our rims to our own alloy hubs, using only the highest quality DT Swiss Competition Race spokes. Inside our hubs, you'll find DT Swiss 240 internals with a quick engaging 54t DT Swiss star ratchet system in the rear that allows you to power over rocks and roots without delay. And while machines do a pretty good job of building wheels, we choose professionally trained humans because they do so with an artistic touch that makes for minimal flaws.

Whether you need a carbon wheelset to get you through an enduro stage or one to shred your local rock garden, the Traverse SL Fattie has you covered.

林道轮组经常两极分化——要么很重,但是很耐用,要么很轻但是很软。正因如此,轻量化,加宽的Enduro级碳纤维轮组似乎只存在于童话故事中。但是今天您走运了!因为我们让它成为了现实。Traverse SL Fattie 27.5将您对全山地轮组灵活性的期望融入了一个产品当中,并且拥有相应的成果来证明。

除了轻盈的重量、高刚性和耐用性,Traverse SL的另一个重点是易用性。首先我们放弃了异响的直拉辐条和易受腐蚀的铝合金条帽。然后我们选择了28根J型辐条,前后都一样。它们的长度也一样——让需要时获取替换的辐条更加简单。最后,我们采用了新的花鼓设计,拥有更宽的间距和更高的法兰来提升整体刚性

您问这大胆的名字是怎么回事?Traverse SL Fattie是很宽,但是30毫米的内宽远远不到胖胎车的宽度。那我们来聊聊宽度。您可能已经注意到了,山地车轮圈宽度几十年以来一直在19到23毫米之间徘徊,它们早就应该更新了。为了寻求更好的轮组设计,我们的工程师开始在45毫米宽的胖胎车圈上测试2.3-2.5英寸的轮胎,看看有没有什么性能优势。仅仅几次骑行之后他们就发现宽圈带来很多优势,例如更大的轮胎内部容积,从而在弯道中更好地支撑轮胎,由于可以使用低胎压而大幅度提升循迹性,并且显著提升轮圈刚性。但是他们也发现一味加宽车圈,收益又会逐步降低,所以在测试了从25毫米到45毫米之间的各种宽度之后,决定了30毫米内宽是我们认为的理想宽度。

确定了宽度之后,我们开始运用我们研发Control SL时积累的知识设计车圈。我们采用了直唇设计,解决了传统圈唇的弱点,并且将它与更宽的车圈剖面相结合,让这款碳纤维车圈能够有效扩散受力。因此您可以接受岩石的挑战而不用担心开裂或者凹陷。OK,那它们很坚固,耐冲击,并且能很好地支撑轮胎——它一定很重吧?错!虽然它的名字叫Fattie,实际上它却一点也不胖。

为了达到这个重量,我们采用自家的铝合金花鼓,高品质的DT Swiss Competition Race辐条手工编制。您将会发现花鼓拥有54齿DT Swiss棘轮系统,采用密闭轴承,让您快速碾过石块和树根。虽然机器编制的轮组已经还不错,但是我们选择经过职业训练的工人,因为他们像艺术家一样对待产品,能带来更小的误差。

不管您需要能够带您完成Enduro赛段还是骑行本地林道的卵石路段的碳纤维轮组,Traverse SL Fattie都能胜任