Tektro R539 brake caliper

The R539 is an exceptional value, high quality mid-reach caliper with refillable cartridge-type brake pads and a little more reach than the Tektro R540. Ideal for frames with a little more tire clearance than a typical track bike like the All-City Big Block or Surly Steamroller, especially when rolling on bigger rubber. Specifications • dual-pivot design w/ forged aluminum arms • reach: 47-57mm • quick release • recessed nut • adjustable angle Shimano-type cartridge pads • sold individually - front or rear • colors: silver, black • weight: 160g