Park Tool - OBW-4 Offset Brake Wrench Stock Item:Park Tool Offset Brake Wrench: 10mm, 11mm, 12mm, and 13mm Maximum Frame Seat Post Insert

Maximum Frame Seat Post Insert Depth - SM: 235mm MD: 250mm LG-XL: 280mm

600ml/21oz size only - 70g weight

while the Shimano 6-speed drivetrain and Tektro Aries mechanical disc brakes provide dependable performance

The Shimano Crank Tool (SCT for short) is specifically built to service the chainring lockring on Shimano single ring cranksets for 12 speed drivetrains

Park Tool - OBW-4 Offset Brake Wrench Stock Item:Park Tool Offset Brake Wrench: 10mm, 11mm, 12mm, and 13mm Maximum Frame Seat Post InsertPARK TOOL OBW 4 OFFSET BRAKE WRENCH A thin offset wrench with 10, 11, 12 and 13mm openings made to fit and adjust many models of side pull and dual pivot brakes.