BB-set CeramicSpeed Trek BB90 /PF37X90.5 for Shimano/FSA/Rotor 24mm (101373)

BB90 is the Trek oversized bottom bracket standard and is only found on Trek road bikes. CeramicSpeed Standard Ceramic Bearings - low friction, high durabilityBearing race material: hardened-steelPRESSFIT, bottom bracket type: BB90Frame shell size (width): 90.5 mmFor frame shell inner diameter: 37mmUse: Road bicyclesCompatible with: ROAD 24mm spindle cranks Shimano, FSA, Rotor and similarIn the box:2 BB90 bearings2 seals2 dust covers with integrated spacersCeramicSpeed All Round GreaseSticker 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.