Park Tool OBW-4 Offset Brake Wrench BX PSI Bottom bracket shell width: 68

Bottom bracket shell width: 68 mm

providing the user with protection against a range of puncture sizes

Recommended Brake Pads: Metal or Resin

it’s hard to remember a time when this level of helmet technology didn’t exist

You can use it on Gloss or Matt finishes (After curing it will give a richer and darker colour tone on matt finishes)

Park Tool OBW-4 Offset Brake Wrench BX PSI Bottom bracket shell width: 68The 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