Axle 3/8” Crmo Bolt, 3/8” Titanium Bolt (税抜¥4500 upcharge)Driver (9T, 10T, 11T, 12-18T) Crmo, Titanium (税抜¥5500 upcharge)Cog (12-18T) Crmo, Aluminum (税抜¥650 upcharge), Elite(税抜¥1300 upcharge)Weight N/A