Park Tool RT-1 Bicycle Headset and Bottom Bracket Cup Remover The Park Tool RT-1 Headset and Bottom Bracket Cup Remover makes bicycle headset and bottom bracket cup removal easy. The tool is pulled through the frame until the flared ends snap in behind the cup. The tool end is struck with a hammer or mallet and the flared ends evenly distribute force around the cup as the cup is driven out. Strong, heat treated alloy steel construction with nickel finish. Removes 1", 1⅛" and 1¼" headset cupsSHIS terminology: Removes EC29, EC30, EC34, EC44, ZS41, and ZS44 headset cupsAlso removes some press fit bottom bracket cups including SRAM DUB, Campagnolo Power Torque, and Campagnolo Ultra TorqueNominal OD of shaft is 1" (25.4mm)For use on 27–38mm (1" to 1.5") bearing races Park Tool RT-1 Bicycle Headset and Bottom Bracket Cup Remover The Park Tool RT-1 Headset and Bottom Bracket Cup Remover makes bicycle headset and bottom bracket cup removal easy. The tool is pulled through the frame until the flared ends snap in behind the cup. The tool end is struck with a hammer or mallet and the flared ends evenly distribute force around the cup as the cup is driven out. Strong, heat treated alloy steel construction with nickel finish. Removes 1", 1⅛" and 1¼" headset cupsSHIS terminology: Removes EC29, EC30, EC34, EC44, ZS41, and ZS44 headset cupsAlso removes some press fit bottom bracket cups including SRAM DUB, Campagnolo Power Torque, and Campagnolo Ultra TorqueNominal OD of shaft is 1" (25.4mm)For use on 27–38mm (1" to 1.5") bearing races Park Tool: Your Guide to the World of Bottom Brackets Confused by what bottom bracket tool you need? You're not alone. Between all the standards, installation methods, and tool fittings, it can all seem a bit overwhelming. Whatever you do need, Park Tool makes over 40 different tools to aid in the removal and installation of bottom brackets. For the removal of press-fit bottom brackets, we offer the following tools: Park Tool: Your Guide to the World of Bottom Brackets Confused by what bottom bracket tool you need? You're not alone. Between all the standards, installation methods, and tool fittings, it can all seem a bit overwhelming. Whatever you do need, Park Tool makes over 40 different tools to aid in the removal and installation of bottom brackets. For the removal of press-fit bottom brackets, we offer the following tools: Park Tool BBT-90.3 Park Tool RT-1 Park Tool BBT-30.4 Buying Options Buying Options Add to Cart Customer Reviews — — 4.6 out of 5 stars 405 Price — no data — no data $52.95$52.95 Tool Type Bottom Bracket Cup Remover + Installation Drift Set Headset/Bottom Bracket Cup Remover Bottom Bracket Cup Remover + Installation Drift Set Bearing ID/Spindle OD 22mm/24mm 25-30mm 30mm Typical Standards/Brands BB90, BB92, Shimano, SRAM GXP, Wheels Manufacturing, Race Face Campagnolo Power Torque, Ultra-Torque, SRAM DUB BB30, PF30, 386EVO, BBright, PF121, SRAM PF46, SRAM PF42, Race Face Cinch TRUSTED SINCE 1963 Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, our bottom bracket tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.