SRAM S1000 Eagle Transmission, product shot
Photo: SRAM
DrivetrainE-bike rated
SRAM Eagle Transmission range · 6 versions

SRAMS1000 Eagle Transmission

OE only – no retail price

Speeds
12 (1x)
Max cog
52T
Shifting
Wireless AXS
Mount
Full Mount (hangerless)

Overview

SRAM S1000 Eagle Transmission is the OE-only, wireless 12-speed T-Type derailleur that brings Transmission shifting to more affordable e-MTBs and MTBs.

Eagle Transmission is SRAM's T-Type 12-speed 1x system: Full Mount derailleurs bolt directly around the rear axle with no hanger, and cassette mapping plus X-Sync tooth profiles give, per SRAM, the best shift under load – even with the added power of E-MTB. All T-Type components can be mixed and matched.

The S1000 Eagle Transmission derailleur is the wireless entry point to the Transmission ecosystem, sharing the GX Transmission architecture in a black-on-black finish with a new drag spring cage damper. It is available as original equipment on complete bikes only.

  • Wireless AXS entry point to Eagle Transmission
  • GX Transmission architecture, Full Mount, no hanger
  • Cassette mapping for shifting under e-MTB power
  • New drag spring cage damper
  • OE availability only

Full specifications

Rear derailleur

Speed (RD)
12
Cage (RD)
Long
Max tooth
52
Color (RD)
Black
Pulley bearings material
Steel
Cage material (RD)
Steel
Drivetrain Configuration
1x
RD Minimum (Cassette)
52
Communication Protocol
AXS
Shift Technology
Wireless
Chain Technology
T-Type

Features

Feature
Compatible with all SRAM T-Type components
Feature
Shares GX Eagle Transmission architecture with sleek black colorway
Feature
New drag spring cage damper
Feature
Hangerless Interface, Full Mount attachment method.
Feature
Radically clear setup process, no adjustment required
Feature
OE availability only.

Manufacturer specification — SRAM. Specs and prices can change; check with the brand or your dealer.

SRAM Eagle Transmission versions compared

XX Eagle AXS TransmissionX0 Eagle AXS TransmissionGX Eagle AXS TransmissionS1000 Eagle TransmissionEagle 90 TransmissionEagle 70 Transmission
Price—€1,900————
Speeds12 (1x)12 (1x)12 (1x)12 (1x)12 (1x)12 (1x)
Range10–52T (XS 1297 T-TYPE 10-52)10–52T (XS 1295 T-TYPE 10-52)10–52T (XS 1275 T-TYPE 10-52)———
ShiftingWireless AXS (Pod Ultimate Concave)Wireless AXS (Pod Ultimate Concave)Wireless AXS (Pod)Wireless AXSMechanical (cable)Mechanical (cable)
Crank arms165mm, 170mm, 175mm165mm, 170mm, 175mm165mm, 170mm, 175mm—155–175 mm—
Chainring32T DM32T DM32T DM———
Max cog———52T——
Mount———Full Mount (hangerless)Full Mount (hangerless)Full Mount (hangerless)
Cassette—————XS-1270, replaceable 5-gear cluster
Weight——————
E-bike rated—YesYesYesYesYes

eMTBs that come with the SRAM Eagle Transmission

SRAM S1000 Eagle Transmission: FAQ

Is the SRAM S1000 Eagle Transmission suitable for e-bikes?

Yes — SRAM lists it as e-bike rated or e-bike specific.

What are the key specs of the SRAM S1000 Eagle Transmission?

Speeds: 12 (1x); Max cog: 52T; Shifting: Wireless AXS; Mount: Full Mount (hangerless).

What other versions of the SRAM Eagle Transmission are there?

XX Eagle AXS Transmission, X0 Eagle AXS Transmission (€1,900), GX Eagle AXS Transmission, Eagle 90 Transmission, Eagle 70 Transmission.