Tektro R559 Long Reach Road Calipers 55-73mm Recessed Nut Mount Silver Mount-Shimano DM The Tech 4 uses all

The Tech 4 uses all new internal sealing for reduced friction and the pivot spins on roller bearings

dual chamber air spring with self-regulating negative pressure

SRAM FlatTop BCD Direct Mount SRAM 8 Bolt Speed 12

Will not leave a powdery white residue

Tektro R559 Long Reach Road Calipers 55-73mm Recessed Nut Mount Silver Mount-Shimano DM The Tech 4 uses allTektro R559 Road Caliper Brake SetsQuick release mechanism with lock device designed for big tires Brake Lever Actuation Short Pull Color Silver Pad Type Cartridge Brake Type Road Caliper Long Reach 55 73mm Weight 179 Brake Position Set Brake Mount Type Long Reach Caliper (55mm 73mm) Defined Color Silver Position Front Rear Mount Type Recessed Nut Mount Reach Long 55 73Mm