Wide, Bombproof, Tubeless €“ The Spike RACE33 27.5" Rim was born for Downhill Racing
Through Spank's MGR Dynamal Technology, the Spike Race33 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 Spike features Spank's patented Oohbah profile that sees an inverted tube wall that both further increases stiffness and reduces weight; a recipe to a wheel that efficiently transfers power and accelerates in a hurry. Furthermore, the "wave" shape in the Oohbah inner tube well 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, improving both traction and overall riding comfort.
Another small feature that could, and often is, easily overlooked, is the Spike RACE33'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. This also maintains an airtight seal between the tire and rim when running a tubeless setup. As is names advocates, the Race33 features a 33mm outer width to keep weight as low, and as race day-ready as possible, without compromising the Spike versatility and resilience.
SPANK SPIKE EVO RACE33 27.5" RIM FEATURES:
MGR Dynamal magnesium-silicon enriched aluminum with sleeved joint
BeadBite rim hook system prevents burping on tubeless setups
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Overall a great wheel, but I wish it would have came with some more instructions. Spank wheels require you to use washers and loctite on the nipples. They don’t specify which washer to put on, and when you use the standard nipple washers, it will decrease your spokes thread engagement another 2mm. This means you’ll need to use spokes 2mm longer in order to have proper engagement.
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