Keskiö CeramicSpeed T47a / Threaded 47X77 All 30mm crank spindles black (109651)

T47a is an assymmetrical version of T47 standard, which designed to provide the benefits of both oversized PF30 and EVO386 shells and the tight fit of threading. Compatible with an asymmetrical 77mm wide frame shells: the non-drive side bearing is within the frame, and the drive side bearing is external. CeramicSpeed Standard Ceramic Bearings - low friction, high durabilityBearing race material: hardened-steelThreading type: T47aFrame shell size (width): 77 mmFor frame shell inner diameter: 47 mmCompatible with: 30mm spindle cranksIn the box:2 cups with CeramicSpeed bearings and dust covers 2-part spacer tubeCeramicSpeed All Round Grease Spacers for setup & adjustmentsSticker sheetRELATED TECHNICAL INFORMATION:CeramicSpeed Standard Ceramic Bearings - put more of your energy into forward motion by reducing frictional drag wherever you can. CeramicSpeed Standard Ceramic Bearings typically have frictional drag of 0.3-0.4 watts per set. That’s in the range of a 75% drag reduction compared to standard bottom brackets. CeramicSpeed balls are 100% smoother and 15% harder than ceramic competition. The bearings last at least 3x longer than other bearings. All Round GreaseDesigned to suit the maintenance of CeramicSpeed Bearings, the CeramicSpeed All-Round Grease maximizes your bearings’ lifetime and performance. This type of grease is a low to medium viscosity lubricant and works as the best compromise between friction influence and lifetime. We recommend it for optimal use in dry and sunny weather conditions, where no or very little contamination threatens the bearing. The application covers mostly road riding conditions, however it can be used off-road in the same weather settings, on all types of CeramicSpeed Bearings. When lubricating your bearings, we recommend a fill rate of 60-80%.Maintenance:Depending on the riding conditions it is recommended once a year to re-grease your CeramicSpeed Bearings.If used in very wet or muddy conditions, maintenance might be required more often.If high pressure washer is used, please do not point jet stream to any of bearings (headset, bottom bracket, wheel hub, full suspension links) as it may wash out the grease. Bottom Bracket tool for installation: CeramicSpeed Dual Socket Tool T45/T47 16-notch 52,2 mm cup tool diameter