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 13-speed groups.

It's been a journey getting here, but as they say, what got us here won't take us there. And "there" is where we're always aiming for. The next level. Higher performance. Better shifting and faster bikes!

So, where's "here"?

Kogel's Kolossos Oversized Cage Claims to Save you 2.5 Watts for $399 - Pinkbike
Original Kolossos Pictured

Since our very first oversize pulley cage launched, I've been proud to offer you the very stiffest option to improve shifting precision over stock derailleurs. Combined with our larger pulley wheels and custom ceramic bearings, the Kogel Kolossos delivered lower friction and longer life, too. Then, we upgraded to Speed Kolossos, making it more aerodynamic and sleeker looking. And we gave you full custom color options with amazing Cerakote finishes. Basically, Speed Kolossos Speed was the benchmark oversized derailleur cage upgrade. And for many applications, it still is, but…

What's next?

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

When SRAM introduced their latest XPLR 13 and Transmission groups, it created new opportunities. Their offset lower wheel maintained better chainlines for quieter pedaling. And the rebuildable nature of these new derailleurs meant easier user serviceability…a big win in today's fast-fashion world. So, we got to work. And we made them even better.

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

The new Kolossos Speed for the latest SRAM XPLR 13-speed gravel and Transmission mountain bike derailleurs are our best ever, improving on stock cages in more ways than ever.

Better Chainlines

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

The new Speed Kolossos is the first and only aftermarket OSP solution that mimics SRAM's offset lower wheel angle. Meaning, we keep the same perfect chainline for reduced lateral friction and a quieter ride throughout the entire gear range.

More Ground Clearance

Despite the much larger pulley wheels, these new Speed Kolossos models are actually shorter than the stock cage, so it has better ground clearance. 5mm for the Transmission and a full 10mm shorter for the XPLR. This means less chance of banging your derailleur hanger on a rock or root, damaging it at a critical moment. These benefits aren't found in any other oversized pulley cage system.

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

Key Takeaways:

  • Fits SRAM Transmission & XPLR 13-speed groups
  • 14-tooth upper and 20-tooth
  • Improved ground clearance compared to stock cage
  • Offset lower pulley perfects chainline
  • Lightweight alloy is incredibly stiff
  • Swappable bearing seals for different conditions

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

Gravel races are getting so fast, riders are looking for every edge, so naturally we delivered for the new XPLR 13-speed groups, and with more and more racers using 1x drivetrains with mountain bike derailleurs & cassettes, I knew we needed an upgrade option for Transmission, too."

"Kolossos is still the stiffest oversize pulley cage on the market, offering fast, precise shifts no matter how hard you're riding. It's perfect for every performance rider, no matter the bike."

Custom Color Options

New Kogel Speed Kolossos - Boost Speed & Ground Clearance on Latest SRAM Groups

As with our other Kolossos, you’ll be able to customize both the cage and the pulley colors, mixing and matching from 144 different Cerakote colors! Pick a different color for inner and outer cages, and upper and lower wheels. You can even choose from a variety of anodized hardware colors for the bolts!

Jonathan Miller