Tired of replacing your rear derailleur after every rough ride or unfortunate tip-over? Madrone’s new Jab derailleur might just be the solution you’ve been waiting for.
Designed from the ground up to be fully modular and rebuildable, the Jab derailleur aims to turn a commonly fragile component into a long-lasting, serviceable piece of gear. It’s built to work smoothly with most popular 1x drivetrains on the market.
What makes it special? Almost everything can be replaced or repaired—from the cage plates and pulley wheels to the clutch mechanism and linkage. Using common tools, you can disassemble, rebuild, or tweak the derailleur instead of tossing it in the recycling bin after a crash.
The Jab also lets you customize its pulley ratio for crisp shifting across a wide range of cassettes. You can choose from different cage lengths to match your setup, making it a versatile option for everything from mountain biking to gravel grinding
Constructed from 6061-T6 and 7075-T6 aluminum, it’s both tough and relatively light, weighing between 308 and 326 grams depending on configuration. The price starts at $298, and multiple color options are available. If you’re not into DIY repairs, Madrone even offers a mail-in rebuild service.
So if you’re done saying goodbye to derailleurs after minor impacts, the Madrone Jab offers a smarter, more sustainable alternative.
