Park Tool Offset Brake Wrench 10-13MM (OBW-4) BSS-002718 this is the world’s lightest

this is the world’s lightest bottle & cage system

Reinforced underside for durability

The SUB Cross is set up perfectly for your excursions

Fits caliper for carbon rim

and output of the USB port used to charge your headphones

Park Tool Offset Brake Wrench 10-13MM (OBW-4) BSS-002718 this is the world’s lightestAbout Park Tool Offset Brake Wrench 10 13MM (OBW 4) The Park Tool OBW 4 is a specialty bicycle wrench designed for the installation and adjustment of side pull and dual pivot bicycle rim brakes. Its unique offset design and thin profile (2. 1mm thick) allow it to access tight places where standard wrenches would be impractical. The OBW 4 features 10, 11, 12, and 13 mm wrench openings to fit wrench flats found on many side pull and dual pivot brake