Dynamal Alloy – Safe, affordable and responsible alternative to carbon fiber. Utilizing the endless life-cycle of aluminum, Spank's proprietary alloy blends offer superior mechanical properties resulting in stronger rims and reduced weight through optimized design. From rim extrusion to final product, each rim is passed through twelve quality control tests.

MGR (Micro Grain Refinement) Processed Alloys – Processes such as extrusion and tube drawing increase the strength of alloy materials by reducing the grain size. No other bars or rims are subjected to the number of drawing steps or level of refinement as those offered by SPANK.

Tubeless Ready

Shotpeen Anodized

Radial Compliance

Bead Bite™ (AntiBurp Tubeless) – Enhanced anti-burp and tire retention tubeless performance. Bead Bite™ rim technology, paired with SPANK's OoBah™ profiles, enhance tubeless use with tires of all types and with a greater range of air pressures. Bead Bite™ rims have six rows of ridges that run along the vertical and horizontal faces of the bead seats. These teeth create air seals between the rim and tire as the bead conforms into them under air pressure. Bead Bite™ rims allow much lower air pressures with reduced risk of pinch flats.

OoBah™ (Reverse Well Design) – Inverted tube well design for greater cross sectional design. Wider, lighter rims. The unique OoBah™ profile allows Spank to manufacture thinner walled, wider profiled, lighter rims without sacrificing strength or rigidity. Wider rims mean stiffer wheels and more tire spread, leading to greater traction, improved comfort and tire performance. The "wave" shape of the OoBah™ inner tube adds strength and support to the vertical rim flange walls and prevents buckling. Normal straight or curved tube wells must be much thicker, and by default heavier, to offer the same support.

F/V Presta Valve