PARK TOOL HEADSET AND BOTTOM BRACKET CUP REMOVER RT-1

The Park Tool RT-1 cup remover drives pressed headset cups out of 1", 1 1/8" and 1 1/4" head tubes, including SHIS EC29, EC30, EC33, EC34 and EC37. The same tool also removes some press-fit bottom bracket cups, such as SRAM DUB, Campagnolo Power Torque and Ultra Torque.

The principle is simple and repeatable: the shaft slides through the tube and the flared ends spread out behind the cup lip. Strike the tool head with a mallet and the force is spread evenly around the whole circumference, so the cup comes out straight without cocking or scoring the bore. Heat-treated alloy steel with a nickel finish stands up to blow after blow.

How to use the Park Tool RT-1 headset cup remover

• Remove the fork and bearings, leaving only the cups in the frame.
• Insert the RT-1 from the opposite side and pull it through until the flared fingers catch behind the cup lip.
• Strike the head with a mallet, rotating the tool slightly between blows.
• Repeat from the other end for the second cup.
• Works with cups or bearings with an inside diameter of 27 to 38 mm.

Why choose Park Tool RT-1

• One tool for three classic steerer sizes and five SHIS EC sizes.
• Also usable on some SRAM DUB and Campagnolo press-fit bottom bracket cups.
• Force spread across the whole cup, so the bore stays in tolerance for the next install.
• 25.4 mm shaft in heat-treated, nickel-plated alloy steel built for years on the bench.

For traditional and semi-integrated 1 1/8" headsets, the Park Tool RT-1 headset cup remover is the starting point; for larger cups there is the oversized RT-2.