Through Spank's Dynamal Technology, the Subrosa Evo 30Al Rim is constructed from dynamically aged, magnesium-silicone enriched, pure alloy that is blended with a special hardening metal. The result is an increase tensile strength and rigidity, as well as a longer fatigue life. Additionally, the Subrosa features Spank's patented Oohbah profile that sees an inverted tube well that both further increases stiffness and reduces weight; a recipe for a wheel that efficiently transfers power and accelerates in a hurry. Furthermore, the "wave" shape in the Oohbah inner tube wall serves as a corrugated steel roofing to supplement strength to the vertical rim flange walls, preventing buckling and allowing a wider rim width. This increase in rim width equates to more tire spread for much improved traction and overall riding comfort.
Another small feature that could, and often is, easily overlooked, is the Subrosa Evo's Beadnip technology. Beadnip is an additional set of vertical bead hooks or "nips" on the inner tube well that ensure the tire always remains in the bead-set, even at lower tire pressures, as well as maintains an airtight seal between the tire and rim when running a tubeless setup. As is names advocates, the Subrosa Evo 30Al features a gaping 30mm outer width and a 32 spoke-hole drilling to maintain a weight to see you up the climbs, without compromising strength and the ability to crush an Enduro course or the local Downhill run.
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