Tektro R559 Road Caliper Brake - Rear Dual Pivot Nutted Mounting Bolts High Polish BLK ModelNumber=K3224 Provides 52mm or 55mm chainline

Provides 52mm or 55mm chainline depending on crank specification Tooth Count 30 Drivetrain Speeds 12 Round or Oval Round Offset 3 Material Aluminum Color Black Defined Color Black Direct Mount Type Direct Mount SRAM 3-Bolt Size 30T

You probably want one of the MOVE Switch Kits instead

Tire clearance: 700 x 25c Rear Axle 10x1 Threaded x 120mm Brake Type Rim TT (Effective) 520 Fork Type Rigid Fork Material Carbon Frame Material Aluminum Frame Type Rigid Front Axle QR x 100mm Color Hot Pink Blink Mfg Size 49cm Platform Thunderdome Wheel Size 700c Defined Color Red Size 49Cm

6mm Color Green

Tektro R559 Road Caliper Brake - Rear Dual Pivot Nutted Mounting Bolts High Polish BLK ModelNumber=K3224 Provides 52mm or 55mm chainlineTektro R559 Road Caliper Brake SetsQuick release mechanism with lock device designed for big tires Brake Lever Actuation Short Pull Brake Type Road Caliper Long Reach 55 73mm Brake Position Rear Brake Mount Type Long Reach Caliper (55mm 73mm) Pad Type Cartridge Defined Color Black Position Rear Mount Type Nutted Mounting Bolts Reach Standard Color Black