{"product_id":"park-tool-head-gear-lockring-wrench-hcw17","title":"Park Tool HCW17 Head-Gear Lockring Wrench, Blue — Dual-Radius Hooks for 41–44mm Rings","description":"\u003cp\u003e\u003cstrong\u003eThe Park Tool HCW17 is a two-radius head-gear lockring wrench designed to securely engage 41–44mm lockrings and compatible single-speed cassette hub rings.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and purpose-built, the HCW-17 gives bike mechanics and home technicians a precise tool for installing and removing common head-gear lockrings found on many headsets and some single-speed hubs. Its dual-hook design ensures a snug contact with either 41–42mm or 43–44mm outside-diameter rings, reducing slippage and damage during service.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the HCW17 reliable for headset lockrings?\u003c\/h3\u003e\n\u003cp\u003eThe wrench uses two different radius hooks machined to match common lockring profiles, preventing rounded edges and poor engagement. Its small footprint reaches into tight headtube areas and holds rings firmly while you torque or loosen them.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-radius hooks for precise contact with varying ring sizes\u003c\/li\u003e\n  \u003cli\u003eNarrow profile fits recessed headsets and tight frame clearances\u003c\/li\u003e\n  \u003cli\u003eStiffer metal construction resists bending under torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich lockring sizes and hub types does it fit?\u003c\/h3\u003e\n\u003cp\u003eThe HCW-17 is sized for lockrings with outside diameters of 41–42mm on one hook and 43–44mm on the other, covering the majority of head-gear lockrings. It also works on single-speed cassette hubs that use externally notched lockrings, giving the wrench some cross-compatibility beyond headsets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHook A: fits 41–42mm outside-diameter lockrings\u003c\/li\u003e\n  \u003cli\u003eHook B: fits 43–44mm outside-diameter lockrings\u003c\/li\u003e\n  \u003cli\u003eAlso fits single-speed cassette hubs with external notches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the HCW17 without damaging parts?\u003c\/h3\u003e\n\u003cp\u003eAlign the appropriate hook so it fully mates with the lockring’s notches or outer edge before applying force; avoid partial engagement. Use steady, controlled torque and support the opposing components (like the cone or bearings) to prevent stress on adjacent parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSelect the hook matching the ring diameter for full contact\u003c\/li\u003e\n  \u003cli\u003eHold the hub or headset steady to prevent slippage\u003c\/li\u003e\n  \u003cli\u003eApply controlled turning force; avoid hammering the wrench\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the HCW17 compare to multi-tool alternatives?\u003c\/h3\u003e\n\u003cp\u003eSpecialized single-purpose wrenches like the HCW-17 typically offer a cleaner fit and less risk of rounding than generic adjustable tools. While a multi-tool is handy for on-the-road fixes, the HCW-17 provides better leverage, accuracy, and durability for workshop maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBetter hook geometry for specific lockring sizes versus generic jaws\u003c\/li\u003e\n  \u003cli\u003eStronger, single-piece construction for repeated shop use\u003c\/li\u003e\n  \u003cli\u003eSmaller profile for accessing recessed rings compared with bulky tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Park Tool HCW-17 is ideal for bicycle mechanics, weekend wrenchers, and anyone who services headsets or single-speed hubs regularly. If you want a compact, precise wrench that reduces the risk of ring damage and fits common 41–44mm lockrings, this tool is a practical addition to your toolbox.\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 HCW-17 fit both 41mm and 44mm lockrings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. One hook fits 41–42mm rings and the other fits 43–44mm rings, covering those common sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the HCW-17 suitable for single-speed cassette hubs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It also engages lockrings with external notches found on many single-speed cassette hubs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Park Tool","offers":[{"title":"Default Title","offer_id":48021057372321,"sku":"B002PTVDP0","price":76.01,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/park-tool-hcw17-front-profile.jpg?v=1791306825","url":"https:\/\/canadiansporting.ca\/products\/park-tool-head-gear-lockring-wrench-hcw17","provider":"Canadian Sporting","version":"1.0","type":"link"}