{"product_id":"blackbearing-zs55-40-lower-headset-bearing","title":"BLACKBEARING LOWER HEADSET BEARING | ZS55\/40","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Blackbearing ZS55\/40 Lower Headset Bearing is designed for riders who demand precision, stability and smooth steering performance. Crafted for semi-integrated headset systems, it ensures a secure interface between the frame and fork for confident handling on any terrain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized for 1-1\/2\" Forks: \u003c\/strong\u003eWith a 40mm fork steerer diameter and 55mm frame diameter, this bearing fits modern frames using 1-1\/2\" lower headset configurations. The sizing ensures perfect alignment, improved rigidity and consistent steering control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSHIS Standard ZS55\/40 Compatibility\u003c\/strong\u003e: Engineered according to the SHIS ZS55\/40 standard, it provides a direct fit for semi-integrated (Zero Stack) headsets. This makes it a reliable replacement for original bearings in high-performance road, gravel and MTB setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision-Built for Performance\u003c\/strong\u003e: Constructed from premium-grade materials, the ZS55\/40 bearing ensures low friction and smooth rotation under varying loads. The precision machining enhances fit accuracy, reducing play and improving steering response.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFully sealed against moisture and dirt, it resists corrosion and contamination, ensuring long-lasting durability. The Blackbearing ZS55\/40 Lower Headset Bearing delivers a perfect combination of strength, protection and refined steering feel.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cem\u003eFeatures\u003c\/em\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized for 1-1\/2\" Forks: Designed for frames with a 55mm head tube, offering enhanced rigidity and consistent steering precision across terrains.\u003c\/li\u003e\n\u003cli\u003eSHIS Standard Compatibility: Built to ZS55\/40 specification for seamless fitment with semi-integrated (Zero Stack) headsets on modern performance bikes.\u003c\/li\u003e\n\u003cli\u003ePrecision-Built Construction: Machined to exact tolerances, ensuring low friction, reduced play and improved steering response even under heavy loads.\u003c\/li\u003e\n\u003cli\u003eDurable and Smooth Operation: High-quality materials ensure wear resistance, maintaining buttery-smooth steering through extended use.\u003c\/li\u003e\n\u003cli\u003eSealed for Longevity: Fully sealed against moisture and debris to prevent corrosion and preserve performance in all weather conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Number: HE-ZS55\/40\u003c\/li\u003e\n\u003cli\u003eType: Semi-integrated\u003c\/li\u003e\n\u003cli\u003ePosition: Down\u003c\/li\u003e\n\u003cli\u003eSHIS: ZS55\/40\u003c\/li\u003e\n\u003cli\u003eS.H.I.S Lower: ZS55\/40\u003c\/li\u003e\n\u003cli\u003eFrame Diameter: 55 mm\u003c\/li\u003e\n\u003cli\u003eFork Pivot Diameter: 1-1\/2 inch (40 mm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BLACKBEARING","offers":[{"title":"Default Title","offer_id":47390865719348,"sku":"HE-ZS55-40","price":3500.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/1504\/8756\/files\/blackbearing-zs5540-lower-headset-bearing-the-bike-affair-7551948.png?v=1769619086","url":"https:\/\/www.madoverbiking.com\/products\/blackbearing-zs55-40-lower-headset-bearing","provider":"MADOVERBIKING","version":"1.0","type":"link"}