PROMAX U-brake rear caliper feature unique, patent-pending, inverted brake springs and adjusters that decrease the overall height of the arms while creating an uncluttered look and easy adjustability.
The brake arms are cold-forged for low weight and increased strength. Cold forging is the best method for making lightweight, strong and reliable bike parts.
Material: Aluminum arms
Size: For any U brake style frame size
Weight: 191 grams / 6.73 ounces with pads