Mechanical T-Type shifting from Sram is here!

ASPIRE SPORTS / Blog / News / Mechanical T-Type shifting from Sram is here!

27.03.2025

Fans of mechanical shifting have been waiting for a long time. But this time has finally come! Sram Mechanical Transmission is here. What does the Eagle 90,70 offer to his fans?

Ordinary shift cable. Extraordinary everything else.

First, we delivered the dream of the perfect mountain bike shift. We’re also providing the dream of ultimate performance for the mechanical mountain bike transmission. This is Eagle Mechanical Transmission. The world’s first mechanical groupsets to use a Full Mount interface instead of a derailleur hanger. The first to let you shift anywhere, under absolute power, without compromising or compensating. It’s the world’s first mechanical system with incredibly easy “prepare, hang, tighten” installation, no adjustment screws needed. Rebuildable. Reliable. Affordable. Mechanical Transmission is the dream, delivered.

Eagle 90 Transmission Derailleur

The Eagle 90 Transmission derailleur is the definitive answer to how good a cable-actuated derailleur can be. It features an all-new T-Type cable actuation ratio to provide the most precise and crisp shifts every time. Eagle 90 is the strongest mechanical derailleur we have ever produced, utilizing the same Full Mount design as its electronic siblings. Not only is it robust, but the derailleur body features replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly, making it the most rebuildable derailleur in the Eagle Transmission Ecosystem.

Eagle 90 Transmission Crankset & E-MTB Crank Asembly

The new Eagle 90 crankset is a sleek, sturdy answer to a growing demand for robust and aesthetically pleasing components. Available in shorter 155mm and 160mm lengths, it gives riders more freedom to build their bike their way. Featuring 8-bolt chainring compatibility, the Eagle 90 crankset includes a silver-stamped steel T-Type chainring with optional bash guards for durability and protection on the trail. 

Available in 175mm, 170mm, 165mm, 160mm and 155mm lengths
DUB Wide spindle for 55CL

Select E-MTB motors to pair with our GapCap for an aesthetically pleasing integrated look.  

150mm, 155mm, 160mm, 165mm, 170mm E-MTB lengths 
Available for SRAM Powertrain, Brose system, Bosch system, new Bosch CX BDU38 system  
Crank arm GapCap is removable to ensure compatibility with other ISIS spindle-based motor systems

Eagle 90 Transmission Shifter and E-MTB Single Click Shifter

The feel, look, and shift quality of the Eagle 90 Shifter allow you to ride in a new way. It has an optimized cable pull and a revised lever position for maximum control. Eagle 90 offers a higher shift quality with a new T-Type cable actuation ratio than any previous mechanical system.

Created for the specific demands of E-MTB, the Eagle 90 Single Click shifter is designed to help eliminate premature chain wear by limiting the shift to a single click.

Aesthetically driven to provide the cleanest looking cockpit when paired with Stealth brakes, Eagle 90 is the perfect complement to your bike.

Eagle Transmission XS-1275 Cassette

The GX Eagle Transmission (T-Type) Cassette is a key reason why Eagle Transmission offers the best-ever inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. Designed for a 55mm chainline for less extreme chain angles throughout the entire range and delivers more precision. Its 520% range has been optimized with larger 38 and 44-teeth cogs prior to the 52-tooth cog for improved gear steps in the low end (compared to the Eagle drivetrain 10-52-tooth cassette). Featuring a marked Setup Cog, install is both simple and foolproof. Plus, it utilizes a Pindome design for gears 1-8 and a single-piece mini-cluster for gears 9-12.

GX Eagle Transmission Flattop Chain

The GX Eagle Transmission (T-Type) chain is the strongest we have ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top. This shape maximizes shifting performance and upgrades the aesthetics of any bike. It is also developed specifically for the added torque loads of E-MTB thanks to its solid pins, which give it incredible strength.

Eagle 90 Groupset & Eagle 90 E-MTB Groupset

Mechanical shifting at its best. Eagle 90 delivers the dream and then some. It is unquestionably robust and features the same Full Mount derailleur architecture as its AXS Transmission siblings. And just in case, the derailleur body features replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly, making it the most rebuildable derailleur we’ve ever built. The system's heart is a sleek, sturdy, forged aluminum DUB crankset with a signature silver T-Type chainring and removable bash guards. Shifting under load is a signature of Eagle Transmission, and this is made possible on 90 with an XS-1275 T-Type cassette that features full X-Sync technology and a premium double-click T-Type Actuation mechanical shifter. For DIY people, mechanical Eagle Trans-mission has a revolutionary simple four-step setup procedure: Prepare. Hang. Tighten. Route. Featuring no limit screws, no b-tension, and no guesswork. Built to take you as far as your imagination and body allow, Eagle 90 Transmission offers riders an unparalleled ride experience.

Hangerless Interface (UDH) frame compatibility only
Available with 165mm, 170mm, 175mm DUB crankarms, and 32T T-Type chainring with two bash guards
Eagle 90 shift lever features stealth architecture and MMX compatibility for seamless pairing with SRAM brakes
Available in SRAM/Brose and Bosch specific chainring and crankset offset variants with “Gap Cap” for a seamless between crank and ring. Forged aluminum crank arms available in 160mm, 165mm, 170mm lengths. Includes clip-on guard
34t 104bcd variant available without crank arms for compatibility with all other drive unit manufactures
Dedicated single-click shift lever variant required for E-MTB use
Black XS-1275 features a 10-52t range and full X-SYNC technology for best inboard and outboard shifting performance under load
Includes GX Eagle Transmission Flattop chain

Eagle 70 Transmission

Derailleur

The Eagle 70 Transmission derailleur is the bedrock of the best cable-actuated Transmission shift experience. It features an all-new T-Type cable actuation ratio to provide the most precise and crisp shifts every time. Utilizing the same Full Mount design as its electronic siblings, the Eagle 70 Transmission derailleur brings strength and dependability to any bike. The derailleur body features replaceable skid plates like GX, X0, and 90 and shares many of the same rebuildable qualities of those high-end derailleurs. 

Crankset & E-MTB Crank Assembly

Aluminum crankarm with 3-bolt T-Type chainring
Available in 175mm, 170mm, 165mm lengths
Bashguards shared with 90, GX, and X0 T-Type chainrings
DUB Wide spindle for 55CL

The Eagle 70 Transmission E-MTB crank is a sleek, sturdy answer to a growing demand for robust and aesthetically pleasing components. Featuring an ISIS spindle interface for broad compatibility.

Available in 160mm, 165mm, 170mm E-MTB lengths
ISIS spindle interface compatibility

Shifter and E-MTB Single Click Shifter

The feel, look, and shift quality of the Eagle 70 Shifter allow you to ride in a whole new way. Optimized cable pull, revised lever position for maximum control, and new T-Type actuation allow Eagle 70 to offer a higher quality of shift than any previous mechanical system. Created for the specific demands of E-MTB, the Eagle 70 Single Click shifter is designed to help eliminate premature chain wear by limiting the shift to a single click.

XS-1270 Cassette

Housing the same medal-winning technology as our other Transmission cassettes, our XS-1270 Cassette offers incredible performance with fantastic value. Finished in a unique black nickel chrome, this cassette is quiet and durable and features a replaceable cluster of gears 8-12. For the first time on a traditional splined driver body, it features a full 10-52t range thanks to the 55mm chain line and integration of the 10-tooth cog and lockring.

Flattop Chain

The Eagle 70 chain features all the benefits of our T-Type Flattop design, found in our most premium Eagle Transmissions. Fully E-MTB compatible, it is robust, durable, and ready for any ride. 

Direct Mount Chainring

Silver chainrings are available in 8-Bolt direct mount
Black chainrings available in 3-Bolt direct mountStamped Steel construction
30-34t range
+3mm offset
Compatible with T-Type chains
Bashguards shared with GX and X0 T-Type chainrings

SRAM Dropper Lever

To complement both Eagle 90 and 70, we sought to design a mechanical dropper lever that matched our Stealth brakes and Transmission shifters and offered optimized performance. Compatible with most mechanically actuated dropper posts, our dropper lever features intuitive ergonomics based on Transmission shifting. For a completed cockpit aesthetic, it features cable routing designed to pair with SRAM Stealth brakes, resulting in clean cables left and right.  

Shared design language with Eagle Transmission and Stealth Brakes to provide the cleanest looking and performing cockpit
Pull ratio compatible with most mechanically actuated dropper posts 
MMX is compatible with three mounting options for best compatibility with E-MTB controls