{"product_id":"ceramicspeed-t47a-shimano-24mm-bottom-bracket-for-77mm-asymmetrical-shell-frames","title":"CeramicSpeed T47A Shimano 24mm Bottom Bracket for 77mm Asymmetrical Shell Frames","description":"\u003cp\u003eThe \u003cstrong\u003eCeramicSpeed T47A Shimano 24mm Bottom Bracket\u003c\/strong\u003e is engineered to elevate your bike’s performance with precision and durability. Designed specifically for frames with a 77mm asymmetrical shell, this bottom bracket combines the oversized interface benefits of BB right with the reliability of a threaded interface, ensuring a secure fit and long-lasting performance. Its unique configuration places the non-drive side bearing inside the frame while keeping the drive side bearing external, optimizing bearing placement for improved efficiency and stability.\u003c\/p\u003e\n\n\u003cp\u003eCrafted with CeramicSpeed’s renowned hand-built bearings, this bottom bracket offers exceptional smoothness and durability, dramatically reducing friction and power loss during pedaling. The precision dust covers guarantee a snug fit, fully protecting the bearing faces from contaminants and ensuring consistent performance in all conditions. Included in the package are two cups with CeramicSpeed bearings and dust covers, a two-part spacer tube, a packet of All Round Grease, and an exclusive sticker sheet, providing everything you need for an expert installation.\u003c\/p\u003e\n\n\u003cp\u003eTechnical innovation is at the heart of the T47A design, featuring an open standard that supports 24mm diameter spindle cranks while maintaining the benefits of oversized shells and threading. The CeramicSpeed Standard Bearings reduce drag by up to 75% compared to conventional bottom brackets, consuming as little as 0.3-0.4 watts per set due to their hardened-steel races and superior ceramic balls. For even greater performance, the CeramicSpeed coated Bearings offer a 60% longer lifespan and 50% less drag, making them ideal for riders seeking the ultimate in efficiency and endurance. The included All Round Grease can be swapped for specialized greases to tailor drag and durability according to your riding conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProviding a smooth, low-drag pedaling experience through advanced ceramic bearings.\u003c\/li\u003e\n  \u003cli\u003eEnhancing crank-to-frame power transfer with durable, hand-built components.\u003c\/li\u003e\n  \u003cli\u003eEnsuring a secure, threaded fit compatible with 77mm asymmetrical shells.\u003c\/li\u003e\n  \u003cli\u003eProtecting bearings from dirt and moisture with precision dust covers.\u003c\/li\u003e\n  \u003cli\u003eSupporting 24mm spindle cranks with an open standard design.\u003c\/li\u003e\n  \u003cli\u003eOffering customizable lubrication options for varied riding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFrames with shell widths other than 77mm asymmetrical design.\u003c\/li\u003e\n  \u003cli\u003eCranks with spindle diameters other than 24mm.\u003c\/li\u003e\n  \u003cli\u003eRiders seeking a completely sealed cartridge system without external bearing exposure.\u003c\/li\u003e\n  \u003cli\u003eInstallation without the recommended CeramicSpeed Dual Socket Tool T45\/T47.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bottom bracket compatible with all Shimano cranksets?\u003c\/strong\u003e\u003cbr\u003eIt is compatible with Shimano cranksets that use a 24mm spindle diameter and frames featuring a 77mm asymmetrical shell width.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tools do I need for installation?\u003c\/strong\u003e\u003cbr\u003eThe CeramicSpeed Dual Socket Tool T45\/T47 16-notch 52.2mm cup tool diameter is recommended for proper installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use different types of grease with this bottom bracket?\u003c\/strong\u003e\u003cbr\u003eYes, the bottom bracket comes pre-greased with CeramicSpeed All Round Grease, but you can switch to Race Day Grease for lower drag or Long Life Grease for enhanced durability in challenging conditions.\u003c\/p\u003e","brand":"CeramicSpeed","offers":[{"title":"Black","offer_id":45965251543215,"sku":"109645","price":233.74,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/109645.jpg?v=1768532779","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/ceramicspeed-t47a-shimano-24mm-bottom-bracket-for-77mm-asymmetrical-shell-frames","provider":"Swinnerton Cycles","version":"1.0","type":"link"}