Through Spank's Dynamal Technology, the Oozy TRAIL295 Bead Bite 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 Oozy 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 Oozy TRAIL295 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 Oozy TRAIL295 features a 29.5mm outer width and a 28 or 32 spoke-hole drilling to maintain a light climbing-optimized weight, without compromising the Oozy strength and ability to crush an XC course or the local trail.
BEADBITE - 6 ROWS OF TINY RIDGES WHICH RUN ALONG THE VERTICAL AND HORIZONTAL FACES OF THE BEAD SEATS CREATING 12 AIR SEALS BETWEEN THE RIM AND TIRE AS THE BEAD CONFORMS INTO THEM UNDER AIR PRESSURE. THE RESULT IS ENHANCED TUBELESS USE WITH A GREATER REANGE OF AIR PRESSURES
MGR DYNAMAL ALLOY - INCREASE IN ULTIMATE TENSILE STRENGTH AND YIELD, WITHOUT THE NORMAL REDUCTIONS IN FATIGUE LIFE
OOBAH - INVERTED TUBE WELL INCREASES STIFFNESS AND REDUCES WEIGHT
BEADNIP - SECOND SET OF "NIPS" ON THE INNER TUBE WELL (HORIZONTAL INNER WALL), WHICH ENSURE THE TIRE ALWAYS REMAINS IN THE BEAD-SEAT
Seems burlier than the Flow II it replaced, at a lower weight. PITA to tape even with Fratelli 25mm as tape sticks to sides of troughs as well as overlapping the bead bite ridges. Will try 18mm next time--straight over the middle. Small (?) amount of sealant worked its way into joint. Four stars--for performance!
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