SRAM just changed the game—again. With the release of the Eagle 90 and Eagle 70 Transmission groupsets, they’ve delivered a purpose-built solution for aggressive eMTB riders who demand reliability, power, and simplicity. These are the first mechanical Transmission drivetrains designed from the ground up for the high-torque, high-impact world of electric mountain biking.
They share the same T-Type hangerless interface as the top-tier AXS kits—but drop the batteries and wireless components in favor of a bombproof mechanical shifting system that still performs flawlessly under load.
The Eagle 90 and 70 groupsets are fully part of SRAM’s T-Type Transmission ecosystem. They use the same:
Hangerless, direct-mount UHD interface
Oversized T-Type chain and cassette
Durable steel jockey wheels
Flattop chain profile
But here’s the twist: they’re mechanical. This is SRAM’s proven 1:1 cable-actuated shifting, paired with the structural benefits of Transmission. You get a fully optimized drivetrain—designed specifically to survive the brutal demands of eMTB riding—without any wireless headaches.
Let’s be real: eMTBs generate more force than any human-powered bike ever could. Torque from mid-drive motors puts traditional drivetrains under insane strain—especially when shifting on climbs or under load.
That’s exactly what Eagle Transmission 90 and 70 were made for.
SRAM didn’t just make these groupsets compatible with e-bikes—they designed them to thrive under e-bike conditions. Every tooth ramp, cage angle, and derailleur interface is engineered to allow smooth, unflinching shifts even under full motor load. It’s a mechanical system that doesn’t flinch when the trail gets brutal—or when your motor is giving everything it’s got.
If you’ve ever blown a shift mid-climb, you’ll understand why this matters.
By skipping the AXS electronics, SRAM brought down the price significantly—without cutting corners on performance or durability.
Eagle 90 includes replaceable skid plates, a threaded cage assembly, and both inner and outer parallelogram links, making it the most rebuildable mechanical derailleur SRAM has ever made.
Eagle 70 still features robust construction with replaceable skid plates, keeping serviceability high and cost low.
These aren’t “entry-level” kits—they’re built for serious riders who want Transmission performance and can wrench their own gear.
With mechanical shifting, you can forget firmware updates, wireless pairing, and battery levels. You just ride.
The Eagle 90 and 70 install with familiar tools and shift with cable tension you can feel, not a signal you have to hope works. And because they’re built on the T-Type platform, compatibility with modern frames and cranks (like those on our MMG Full Suspension) is seamless.
This is old-school reliability with new-school muscle.
The Eagle 90 and 70 groupsets are more than just tough—they’re eMTB-specific solutions for riders who push limits. From the reinforced derailleur design to the oversized Transmission chain interface, every part is made to handle steep climbs, electric torque, and rough terrain without skipping a beat.
That’s exactly why we spec and support them at Drip.
Our MMG Full Suspension is Transmission-ready right out of the box, featuring a T-Type-compatible carbon frame, a 750W Bafang M560 motor, and all the trail geometry you need to dominate the mountains. Whether you choose AXS or mechanical, you’re getting SRAM’s best thinking, backed by Drip’s performance-first design.
SRAM Eagle 90 and 70 Transmission groupsets bring the magic of T-Type to more riders than ever—now with a rugged, mechanical system that thrives under pressure. Built for eMTB from the ground up, these drivetrains aren’t just affordable—they’re unstoppable. Learn more about this awesome innovation at SRAM.
Build your fully custom eMTB today on the Drip e-Bikes MMG Full Suspension eMTB. It’s the perfect match for SRAM’s next-gen mechanical might.
At Drip e-Bikes, we’ve always been about delivering unbeatable performance without the premium markup—and our newest partnership takes that mission even further. We’re proud to announce our collaboration with Teewing Bikes to bring the Turbo Force lineup to the U.S., powered by DJI’s revolutionary Avinox motor system.
If you’ve been watching the eMTB world lately, you’ve probably heard the name DJI Avinox—and for good reason. Best known for its innovation in drone and camera tech, DJI officially entered the electric mountain bike space in 2024, and their debut motor system shook up the industry.
