Description
Valve hole: Presta Ø 6
This is the only way to ensure uniform wall thicknesses and excellent air retention
but it's the aerodynamic gains that really make the upgrade worthwhile
Lightweight/durable alloy construction
Casing: Trail Shield 4x60 TPI1
Shimano FC-4603 Tiagra 10 Speed Triple Chainset - 50 / 39 / 30T - 175mm - Silver Tyre Width_2.25 Valve hole: Presta Ø 6Shimano FC 4603 Tiagra 10 Speed Triple Chainset 50 39 30T 175mm Silver Sporting many features from pro level equipment, this 2 piece cap free design Tiagra chainset offers unbeatable performance. The 2 piece cap free design is quick and easy to install whilst being lighter and stiffer than a traditional crank bottom bracket assembly. SG X chainrings feature strategically placed chain pick up pins and tooth profiles to ensure fast and positive shifting