Velocity Dyad is a wider rim (24mm wide) making it a great choice for loaded touring, commuting, a tandem, cruiser or even a 29'er. Item Specifications: Color: Silver, Weight: 525, Hub Drilling: 32, Rim Depth: 22, Manufacturer Spec ERD: 597, Valve: Presta, ISO Diameter: 622 / road / 29", Wheel Size: 700c, Tire Type: Clincher, Rim Center Offset: 0, Rim Joint: Sleeved, Brake Track: Machined, Defined Color: Silver, Rim Width (External): 24, Rim Material: Alloy, Rim Width (Internal): 18.6, QBP Measured ERD (mm): 597,