Trek Bottom Brackets

Kogel Bearings offers ceramic bottom brackets for Trek road, gravel and mountain bikes. Choose from options below to install any Shimano, Sram GXP, or any other 30mm or 24mm diameter crank spindle.

Trek Road Bike Bottom Brackets

Trek has used the BB90 bottom bracket standard for years in their Madone and Domane road bikes.

BB90 is a standard used on Trek carbon road bikes only. Bearings drop directly into the frame shell, which is 90.5mm wide and has an inner diameter of 37mm.

The bearings are pressed directly into the carbon and only leave room for Shimano or GXP cranks. This bottom bracket uses a cup with a bearing installed.

Trek Mountain Bike Bottom Brackets

Trek mountain bikes use the BB92 standard, which is called BB86 on their aluminum road bikes.

In the past, Trek has used the BB95 variation to this standard on mountain bikes, but modern day Trek MTBs all have a BB92 frame shell.

WHY Upgrade/Replace Your Bottom Bracket

Even new bikes with new high-end drivetrains can, and usually do, ship with bottom brackets using steel bearings.

Even if perfectly maintained, those steel bearings just won't roll as smoothly or efficiently as our ceramic steel bearings.

Kogel Ceramic Bearings are:

  • More symmetrical (i.e. round) and built to stricter tolerances than steel bearings
  • More efficient for power transfer than standard bearings
  • And, won't deform, flat-spot, crack or get pitted

Beyond the basics of keeping your bottom bracket clean and maintained, perhaps the most important step is ensure your bike's best performance is using a bottom bracket manufactured with high-quality ceramic bearings.

Shop Trek Bottom Brackets

Expert Advice


No amount of bearing grease can fix a cheap bottom bracket. It will never ride as efficiently as a ceramic-based bottom bracket. Over time the performance only gets worse becoming, literally, a drag on each pedal stroke.


Now imagine riding your bike with ceramic bearing components, feeling the silky smooth 100% power transfer from each pedal stroke to your rear wheel. Your crankset spins almost completely silent with hardly any effort. A feeling lasting for years, not months.


Kogel’s ceramic bottom brackets are one of the best options for maximizing the performance of your bike. Our entire line of silky-smooth bearing products offer exceptional value and guaranteed performance. Ready to experience your bike’s true potential? Use the bottom bracket finder to find the right bottom bracket for all your bikes.