The Shimano Tiagra ST-4725 is a right-side shift/brake lever for 2x10 speed drivetrains, sold here with the BR-4770 hydraulic disc brake caliper for the rear wheel. The lever features revised ergonomics with a repositioned angle to the handlebar, accommodating riders with smaller hands or a preference for a compact grip.

The BR-4770 Flatmount caliper uses a 2-piston system and supports One Way Bleeding for straightforward maintenance. Hydraulic actuation delivers consistent braking modulation across varying weather and terrain conditions. A reach adjust allows fine-tuning of the brake lever position to suit hand size.

Quick Facts

Feature	Specification
Drivetrain Speeds	10-speed
Brake Caliper Mount	Flat Mount
Hydraulic Fluid Type	Mineral Oil
Pad Compound	Resin
Hydraulic Hose Length	1700mm (Rear)