WTB HTZ i30 Rim 29'' Holes: 32 BlackDesigned specifically for e bike use Built with thicker rim walls to counteract the force and abuse e bikes endures Widths available for gravel to trail bikes TCS 2. 0 rims deliver the easiest to mount and most reliable tubeless system TECH SPECS Primary Color Black Rim Center Offset Symmetric Rim Construction Aluminum Welded Rim Drilling F: 21 R: 24 Rim Eyelets No Rim Internal Width 30mm Rim Material Aluminum Brake Type Disc Tire Type Tubeless Ready