Velocity Made in Australia and now in USA. The B43, AKA the Brisbane43, at 43mm deep, triple walled, and in drillings up to a 48h, the B43 is the ultimate rim for tricking and bike polo. If you #39;re looking for stiffness, rigidity, strength, and the bling that goes with it, roll these on your whip. - Bead seat diameter:Weight: 770g