{"product_id":"enduro-bearings-acb-4545-150-stainless-steel","title":"Enduro Bearings ACB 4545 150 Stainless Steel","description":"\u003ch2\u003eEnduro ACB 4545 150 Stainless Steel brings premium 440C corrosion protection and angular-contact precision to your 1-1\/2 headset, built to shrug off mud, rain, and everything the trail throws at it.\u003c\/h2\u003e\n\u003cp\u003eIf you're tired of swapping out headset bearings every time the season gets wet, the Enduro ACB 4545 150 Stainless Steel is the upgrade your front end deserves. This is a 1-1\/2 angular-contact headset bearing built from 440C stainless steel balls and races, measuring 40mm x 51.8mm x 7mm with 45x45 degree contact angles. The slightly smaller 51.8mm OD is the key detail here: it's designed to fit the tighter lower bearing seats found in some framesets where a standard ACB 4545 150 won't quite seat correctly.\u003c\/p\u003e\n\u003cp\u003eNot all stainless is created equal, and Enduro leans hard into that point. They spec 440C specifically because it carries the highest strength, hardness, and wear resistance of the entire 440-series family, achieved through special heat treatment and cryogenic treatment. Pair that with LLB-type seals, Almagard 3752 grease, and a bearing cavity that's 90% packed with high-pressure waterproof grease, and you've got a bearing that treats mud, creek crossings, and post-ride hose-downs as a non-event.\u003c\/p\u003e\n\u003cp\u003eThe angular-contact geometry does the heavy lifting on longevity. Every single ball engages evenly under load, spreading force across a larger surface area to minimize wear and maximize bearing life. At 24g and a static load rating of 977lbf \/ 4.34kN, this is a serious piece of kit that punches well above its weight class.\u003c\/p\u003e\n\u003ch3\u003eWhy You'll Like It\u003c\/h3\u003e\n\u003cp\u003eYou'll feel the difference every time you rail a corner or muscle through a tech section, knowing your headset is running smooth and corrosion-free no matter how ugly the conditions get. If your frame has a tighter lower bearing seat that swallows standard bearings incorrectly, this bearing's 51.8mm OD is exactly what you've been hunting for. Enduro's 440C stainless construction means sweat, sports drink spills, and week-long rain rides are no longer a bearing's worst nightmare.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e440C stainless steel balls and races, the highest-strength and most corrosion-resistant alloy in the 440-series, treated with special heat and cryogenic processes for superior mechanical properties\u003c\/li\u003e\n\u003cli\u003eSlightly smaller 51.8mm OD fits tighter lower bearing seats found in some framesets where the standard ACB 4545 150 won't seat properly\u003c\/li\u003e\n\u003cli\u003eAngular-contact design (45x45 deg) engages all balls evenly under load, spreading force over a larger surface area to reduce wear and extend bearing life\u003c\/li\u003e\n\u003cli\u003eLLB-type dual-lip labyrinth seals and Almagard 3752 waterproof grease, with the bearing cavity 90% filled for maximum protection against mud, rain, and sweat\u003c\/li\u003e\n\u003cli\u003eStatic load rating of 977lbf \/ 4.34kN at a featherweight 24g. This size bearing is also known in the bike industry by these part numbers: HSS011, BAA0695K, TH-070, MR-128, MH-P16, MH-P28\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Enduro Bearings","offers":[{"title":"Default Title","offer_id":40109578322008,"sku":"811780023130","price":56.5,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/8626\/9784\/products\/enduro-bearings-acb-4545-150-ss-stainless.png?v=1735296664","url":"https:\/\/reevolution.sg\/products\/enduro-bearings-acb-4545-150-stainless-steel","provider":"ReEvolution","version":"1.0","type":"link"}