Front: QR / 9MM mini thru / 12MM / 15MM *100MM - choose oneRear: 9MM*135MM / 10*135MM / 12*135MM / 12*142MM - choose one Freehub: Shim.9/10/11s or XX1 XD compatible - choose oneD791SB-CL--Front hubWeight: 137gspoke holes: 24 28 32Gauge: 14G O.L.D.:100MM x MM (defult)P.C.D.:58MM/48MMAxle material: AL7075sealed bearings:2Color: blackD792SB-CL-- Rear hubWeight: 263g spoke holes: 24 28 32 sealed berings: 4 Gauge: 14G O.L.D: 135MM x MM (defult) Axle material: AL7075 cassette body: shim.9/10/11s or XX1 XD Pawls: 4 color: Black