Shimano Tiagra Double 4600 10 Speed Chainset - 52/39T - 170mm Arm Length Brake Calipers Where as if the rider

Where as if the rider brakes

Removable secondary trigger release lever and in-line optical gear display

this versatile 2x10 speed chainset is engineered for performance

or adjusted independently of the derailleur's position

Shimano Tiagra Double 4600 10 Speed Chainset - 52/39T - 170mm Arm Length Brake Calipers Where as if the riderShimano Tiagra Double 4600 10 Speed Chainset 52 39T 170mm Arm Length Experience the unbeatable performance promised by this pro level kit. Showcasing a 2 piece cap free design, this allows a quick and easy installation whilst delivering a lighter feel compared to the traditional crank bottom bracket assembly. If you need quick and positive shifting, then the SG X chainrings with its pick up pins and tooth profiles will be right up your street with