Competition product professionally assembled in Italy by Tsunami Carbon Project Brand: Tsunami Carbon Project Rims: Duke aluminum internal channel 27.5mm, 28 holes Hubs: Tsunami Carbon Project boost straightpull on ratchet mechanics Hubs for 6-hole discs and through pins Bodice: Sram XD Spokes: Alpina 2-1.5-2mm stretched on specific Tsunami Carbon Project Number of spokes per wheel: 28 Nipples: Alpina made on specific Tsunami Carbon Project Real weight of the pairs we have available: 1578 grams -1588 grams