{"product_id":"park-tool-rt-1-head-cup-remover-for-1-1-1-8-1-1-4","title":"Park Tool RT-1 Head Cup Remover for 1\" , 1⅛\" , 1¼\" Headsets — Flared-End Pull-Through Design, Durable Shop-Grade","description":"\u003cp\u003e\u003cstrong\u003eThe Park Tool RT-1 Head Cup Remover is a durable shop-grade tool that pulls headset cups cleanly from frames sized 1\", 1-1\/8\" and 1-1\/4\" without damaging the shell.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you’re rebuilding a vintage road bike or servicing a modern steel frame, removing headset cups can be awkward and risky without the right tool. The RT-1 uses a flared-end design that snaps behind the cup so you can pull it straight through the head tube, minimizing marring to the frame and simplifying removal. Built for bicycle mechanics and home wrenchers, it fits the common 1\" to 1.25\" headset cup range and is a compact addition to any toolkit.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the RT-1 remove headset cups safely?\u003c\/h3\u003e\n\u003cp\u003eThe RT-1 seats its flared ends behind the inner lip of the headset cup, letting you pull the tool through the head tube while the cup slides out intact. This method avoids hammering directly on the cup or the frame, reducing the chance of distortion or paint damage. The tool’s profile aligns with typical cup edges so extraction is controlled and centered.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlared ends lock behind the cup for secure grip during extraction.\u003c\/li\u003e\n  \u003cli\u003ePull-through action prevents off-center impacts and frame scoring.\u003c\/li\u003e\n  \u003cli\u003eDurable construction resists bending under repeated use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich headset sizes does this remover support?\u003c\/h3\u003e\n\u003cp\u003eDesigned for cups sized between 1.00\" and 1.25\", the RT-1 covers the most common headset standards: 1\", 1-1\/8\", and 1-1\/4\". It is not intended for oversized press-fit headsets or integrated zero-stack designs beyond those dimensions. For unusual or proprietary cups, verify shell inner diameter before use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 1\", 1-1\/8\", 1-1\/4\" headset cups.\u003c\/li\u003e\n  \u003cli\u003eWorks on most threaded and press-fit cups within the 1.00\"–1.25\" range.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for larger press-fit or integrated headsets outside this range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is the best technique for using the RT-1 in my workshop?\u003c\/h3\u003e\n\u003cp\u003eStart by aligning the tool so the flared ends can pass through the head tube and engage the cup’s inner lip. Pull steadily—either by hand or with a shop vise and rag-wrapped handle—until the cup clears the head shell. Clean the shell and inspect for burrs before installing replacement cups or bearings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsure correct orientation so flares snap behind the cup lip.\u003c\/li\u003e\n  \u003cli\u003eUse controlled pulling force; avoid sudden jerks to protect the frame.\u003c\/li\u003e\n  \u003cli\u003eInspect and clean the head tube after removal for smooth reassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this tool fit older bikes and modern frames alike?\u003c\/h3\u003e\n\u003cp\u003eThe RT-1’s simple, size-specific design makes it effective on older steel and aluminum frames that use the standard 1\"–1.25\" cups, which remain common on many vintage and mid-range bicycles. Some modern bikes use integrated or oversized systems that require other tools, so check shell dimensions first. For compatible frames, the RT-1 provides a fast, non-destructive removal method compared with improvised alternatives.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExcellent for vintage road and many mountain frames with standard cups.\u003c\/li\u003e\n  \u003cli\u003eNot for integrated or oversized modern headset systems.\u003c\/li\u003e\n  \u003cli\u003eSaves time and minimizes cosmetic damage versus hammer-and-punch methods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Park Tool RT-1 is aimed at bike mechanics, restoration hobbyists, and DIY riders who need a reliable way to remove 1\", 1-1\/8\", and 1-1\/4\" headset cups. If you work on older bikes or frequently service headsets with these common sizes, the RT-1 is a compact, dependable addition to your toolkit that reduces risk during cup extraction.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the RT-1 remove press-fit cups on modern bikes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Only if the press-fit cup falls within 1.00\"–1.25\". Integrated or oversized systems usually need a different tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need extra tools to use the RT-1?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—hand pulling often works, though a rag-wrapped vise or a block for leverage can help on stubborn cups.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Park Tool","offers":[{"title":"Default Title","offer_id":48025927811233,"sku":"B000WY8LPK","price":111.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/park-tool-rt1-front-view.jpg?v=1791364876","url":"https:\/\/canadiansporting.ca\/products\/park-tool-rt-1-head-cup-remover-for-1-1-1-8-1-1-4","provider":"Canadian Sporting","version":"1.0","type":"link"}