FEATURES

TECHNICAL DATA

30mm thru-axle cranks are increasingly popular due to their high stiffness and low weight. 46mm inner diameter bottom brackets are popular for the freedom they offer designers in building frames. Because of the variety of widths, the cups here extend into the shell and come with a telescoping spacer tube to further seal and stiffen the system.

The bottom bracket is already stiff thanks to hard ceramic bearings and hardened-steel races. Thanks to CeramicSpeed, it’s also nearly zero drag. Standard Bearings typically have a frictional drag of 0.3-0.4 watts per set. That’s in the range of a 75% drag reduction versus conventional bb’s. The bearings last at least 3x longer than other bearings.

Change the grease for your rides. Race Day Grease, All Round, and Long Life are greased CS designed. The first is the least drag, the last is the most durable. All Round, in the middle, comes in road bearings.

O-RING SUPPORT

If you need instructions on a crank setup with no crank-based preload adjustment using an O-ring, then follow this link.

IN THE BOX

• 2 cups with bearings installed.

• 2 1mm spacers.

• 2 0.5mm spacers.

• 2 dust covers.

• O-ring.

• Spacer tube.

• CeramicSpeed All-Round Grease.

• Sticker sheet.

SPECIFICATION

Type PressFit

Bearing Type Ceramic

Length -Shell Width 79-92 mm

Thread type -Spindle Diameter 30 mm