SRAM Roam 50 29in Aluminum UST Wheel - Road Bike Shop
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SRAM Roam 50 29in Aluminum UST Wheel
Price: $586.00buy now
Big wheels roll fast, especially on modern iterations of a 29-inch trail bike. But, a bigger wheel also amounts to more required leverage and more weight. For these reasons, SRAM focused on strength and weight loss when designing the ROAM 50 29in Aluminum UST Wheel. Not surprisingly, the ROAM makes good on those intentions, and delivers a wheels that holds up to the riding styles of modern trail riders. It features a wide, asymmetrical aluminum rim and hubs that are easily serviceable by home mechanics. So, you get the strength that you need, in a package that's light enough to warrant a spot on a XC race bike. In designing its new range of wheelsets, SRAM's engineers started with a blank slate. Accordingly, they focused on building wheels that provide durability, a responsive ride quality, and a light overall weight. The Taper Core construction of the aluminum ROAM rim is an illustration of this mission. Taper Core is the product of an extrusion process that allows SRAM to place more material where it's needed for durability. This results in a thinning of the remaining rim profile in order to optimize the balance of weight and strength. In fact, a cross-section of the rim reveals that its main cavity is thinner on the sides than either the bead hook or the spoke bed. In other words, the sidewall thins gradually, providing a strong base for the bead hook. This way, the rim is more resistant to denting under hard impacts. The cross-section of the RAIL 50's rim also reveals an asymmetrical shape that offsets the spoke bed. However, this isn't a mere novelty. Instead, it's actually key to building the RAIL wheels with zero dish, while simultaneously maintaining even spoke tension. Basically, with a traditional symmetrical rim, the spokes on the drive side must be shorter in order to keep the rim centered relative to the dropouts. Unfortunately, though, the discrepancy in spoke length puts greater tension on the drive side spokes than the non-drive side spoke...