Yes, we’re talking about a partially rebuildable derailleur. There’s also a replaceable B-knuckle cover and outer link. These new XX SL, XX, and XO derailleurs are “engineered as integrated, interdependent Transmission components the T-Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface.” This, as SRAM point out, creates a far stronger connection as the mech mounts directly to both sides of the bike frame and the axle.Īll three levels feature an integrated overload clutch, which essentially decouples the motorized internals in an impact to prevent damage. Should you choose to use just a few parts on their own – like just adding a Transmission derailleur to your existing Eagle AXS drivetrain – SRAM claims that Transmission will not function properly for reasons described below. To maximize and optimize the capabilities of Transmission, you must outfit your bike with the complete component suite-an ecosystem, if you will-consisting of derailleur, crankset, chainring, chain, and controllers. Instead, the derailleur is attached directly to the bike frame and tensioned through a straightforward setup method as seen in this video and/or with the assistance of SRAM’s new mobile app which bases tension on a number of factors including bike model, chainstay length, chainring size, etc. This isn’t just a few tweaks to the existing Eagle AXS, rather, it is an entirely new system with all new parts in-as SRAM describes-a rethinking of “the entire interface between frame, wheel, and drivetrain.” With no derailleur hanger or adjustment screws, the aim of this system is to allow “flawless shifting under maximum power.” That’s right: no separate hanger and no limit screws. Well, Eagle Transmission is that something. With SRAM’s adoption of the Universal Derailleur Hanger a few years ago, we knew something new was coming. Today, however, let’s take a look at product highlights and some initial thoughts about these new components after a few rides on a Santa Cruz Megatower test bike that SRAM sent us a couple of weeks ago. As such there’s a lot to unpack here, which we expect to dive deeper into during the next few months of Transmission-equipped bike reviews. SRAM also released an all-new Stealth lever body for their Level and Code brake lineup. This hefty product launch encompasses derailleurs, cranksets, cassettes, shift controllers, and more across XX SL Eagle, XX Eagle, and XO Eagle levels along with power meter and e-bike-specific components. After months of leaks, spottings, and speculation, SRAM unveiled their newest wireless mountain groupset, Eagle Transmission, along with a collection of Stealth Brakes.
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