Kogel's Ball Bearing Adventures

The Great Refresh is an annual service for Kogel ceramic pulleys and Kolossos cages. Send your parts back to Kogel HQ and we strip them down, overhaul the internals, refinish them and send them back looking and spinning like new.

Already running a Speed or Aero Kolossos? You don’t need a new cage to get Pulsar speed. The full ceramic Pulsar wheels drop straight into the cage you already own. Here are the three moments that make the swap worth it.

Our test rig read zero watts of friction loss, and it turned out our sensors just weren't good enough. Meet the Kolossos Pulsar: full ceramic bearings, no lubrication, built on the Speed and Aero Kolossos cages.

When I started Kogel in 2014, I didn't set out to build the world’s most colorful derailleur cages. I set out to solve a much more fundamental problem: the friction...

One of the most frequent questions that lands in my inbox sounds something like this: "Ard, I want to make my drivetrain faster, but do I really need the whole cage,...

In the world of high-end cycling, "bigger is better" has become the mantra for drivetrain efficiency. You see the oversized pulleys everywhere—from the local group ride to the Kona finish...

A shorter-than-stock cage and unique offset lower wheel angle combine with aero shaping & signature oversized pulleys on ceramic bearings to deliver unparalleled performance for new SRAM Transmission and XPLR...

If you've been following Kogel for a while, you know we're obsessed with two things: making the fastest, most efficient bearings on the planet and making sure they last. We...

Watts up my dear readers? Today, I want to talk to you about the Kolossos ST oversized derailleur cage. I know what you might be thinking: "Another expensive upgrade promising...

As many of you know, we've always prided ourselves on providing the best bearings in the industry, backed by our best in industry, two-year warranty, also known as Very Few...

Since the early days of Kogel Bearings, and long before that, I've always been driven by a passion for bicycle innovation and performance. The Kolossos oversized derailleur cage is a...

At Kogel, we know that marginal gains matter, we built a business around that concept for over a decade now —but we also know that not every rider needs to chase...