SRAM
BySRAM

Eagle 90 Transmission Derailleur

Cable-actuated T-Type derailleur with Full Mount design and replaceable components.

$210MSRP · USD
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Drivetrain · Rear DerailleursEagle 90 Transmission DerailleurSKU RD-90-A1
TypeRear Derailleurs
Disciplinemountain
Speeds12
Variants11 size or option
Weight395 gManufacturer claimed
01 / About

The Eagle 90 Transmission Derailleur.

SRAM's take on drivetrain.

Cable-actuated T-Type derailleur with Full Mount design and replaceable components.

02 / Specifications

Eagle 90 Transmission Derailleur spec sheet.

Everything SRAM publishes for the Eagle 90 Transmission Derailleur.

01Overview
5 fields
Type
Rear Derailleurs
Discipline
mountain
Brand
SRAMExternal
SKU
RD-90-A1SRAM part number
Product URL
www.sram.com/en/sram/models/rd-90-a1External
02Drivetrain
7 fields
Speeds
12
Actuation
—
Subcategory
—
Power meter
—
Power meter type
—
Model line
Eagle 90
Generation
A1
03Pricing & availability
4 fields
Price
$210USD · MSRP
Sale price
$210Currently on sale
Availability
—
Weight
395 gManufacturer claimed
04Additional specs
9 fields
Cage Length
long
Max Cog
52
Cage Material
Aluminum
Drivetrain Config
1x
Min Cog
52
Shift Technology
T-Type Actuation
Chain Technology
T-Type
Clutch
false
Raw
{"Speed (RD)":"12","Cable pull ratio":"T-Type Actuation","Cage (RD)":"Long","Max tooth":"52","Cage material (RD)":"Aluminum","Drivetrain Configuration":"1x","RD Minimum (Cassette)":"52","Shift Technology":"T-Type Actuation","Chain Technology":"T-Type"}
03 / Variants

1 variant available.

Sizes, colors, and configurations published by the brand.

Total variants1Single configuration
#ColorSKUAvailability
01Black007518188000Out of stock
04 / Reviews

From the cycling press.

6 reviews from 6 sources.

01mbaction.comNo Battery, No Problem: Eagle 90 Long Term Review - Mountain Bike Action MagazineFeb 202602BikeRadarSRAM Eagle 90 Transmission review: the best mechanical drivetrain yet, but Shimano does one thing better | BikeRadarOct 202503bikepacking.comSRAM Eagle 90 Transmission Review: Trickle-down Mechanical - BIKEPACKING.comMar 202504theradavist.comFirst Ride Review: SRAM Eagle 90 Mechanical Transmission – Travis Engel | The Radavist | A group of individuals who share a love of cycling and the outdoors.Mar 202505freehub.comComponent Review | SRAM Eagle 90 Mechanical Transmission | Freehub MagazineMar 202506ride.chTest: Sram Eagle 90 Transmission - carefree handling with a robust rear derailleur | Ride MTB—