Park Tool OBW-4 Offset Brake Wrench D4 Optimized gear combinations and ratios

Optimized gear combinations and ratios for trail riding

ADAPTIVE: Carbon® Digital Light Synthesis™ 3D-printing technology

12 or 13 speed chain rivets (see CT-4

The entry and the release are secure and work well

This is not a fault of the tube and will void all warranty with the tube

Park Tool OBW-4 Offset Brake Wrench D4 Optimized gear combinations and ratiosThe 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 calipers. Mfr Claimed Weight TBC