EVO386 began as a design collaboration between Wilier and FSA. It has gained wider acceptance because it marries a 46mm diameter shell like PF30 with a 86.5mm width, like BB86. This bottom bracket makes it possible for Campagnolo and Fulcrum Ultra-Torque cranks to fit in frames with the standard.
This kit comes with CeramicSpeed Standard or Coated Bearings and bb cups. Hardened-steel races run super smooth, super round CeramicSpeed Balls in both versions. The Coated version has a metallic coating 3 microns thick laid onto the races, making it even
smoother and harder, resulting in even lower drag and longer life.
In The Box:
2 CeramicSpeed 91805T Bearings
2 CeramicSpeed EVO396 Campy UT compatible cups
2 x 2.75mm spacers.
10ml syringe of CeramicSpeed All Round Grease.
Bearings for the Ultra-Torque cranks are installed on the spindle, resting against the arms rather than pressed into the bottom bracket. A removal/installation tool is necessary; we sell one here, but any appropriate tool will work. Spacers are included in case the bottom bracket shell is too narrow.
We start with our CeramicSpeed Balls in hardened steel races. They create a 75% reduction in drag compared to conventional bottom brackets. It helps that the balls are 400% smoother, 128% harder, 58% lighter than steel. CeramicSpeed Standard Bearings have frictional drag 0.3-0.4w per set with standard grease. They also last at least 3x longer.
Coated Bearings amplify your effort. The coated races find a 50% drag reduction and an improvement in bearing life of 60% vs. Standard.
To tailor your ride to your needs, change grease. All Round Grease is installed; can be swapped for lower drag TT and Track Grease or higher durability LongLife Grease, better for messy conditions.