★Body: AL7075 ★Spindle: 6/4 Titanium(DLC coating) or Stainless Steel (TiN coating) ★Bearings: 1xcartridge stainless steel, 1xSS needle bushing. ★Studs: Stainless steel ★Weight: Ti spindle- 150g(pair) / SS spindle- 185g(pair)